Polychlorinated biphenyls ( PCBs ) are organochlorine compounds with the formula C 12 H 10− x Cl x ; they were once widely used in the manufacture of carbonless copy paper, as heat transfer fluids , and as dielectric and coolant fluids for electrical equipment. They are highly toxic and carcinogenic chemical compounds, formerly used in industrial and consumer electronic products, whose production was banned internationally by the Stockholm Convention on Persistent Organic Pollutants in 2001.
128-521: Tobique First Nation ( Malecite-Passamaquoddy : Wolastoqiyik Neqotkuk ) is one of six Wolastoqiyik or Maliseet Nation reserves in New Brunswick , Canada . The Tobique Reserve is located on the north side of the Tobique River . The reserve comprises two lots (The Brother's # 18, 4 ha; Tobique # 20, 2724 ha). The Tobique Reserve, established in 1801 with nearly 20,000 acres (8,100 ha),
256-432: A trophic cascade can occur. PCBs can cause harm to human health or even death when eaten. PCBs can be transported by birds from aquatic sources onto land via feces and carcasses. PCBs undergo xenobiotic biotransformation, a mechanism used to make lipophilic toxins more polar and more easily excreted from the body. The biotransformation is dependent on the number of chlorine atoms present, along with their position on
384-455: A bridge for plastic pollution to be transported from terrestrial environments into marine environments. It has been estimated that 88–95% of marine plastic is exported into the ocean by just 10 major rivers. An organism can accumulate PCBs by consuming other organisms that have previously ingested PCBs from terrestrial, freshwater, or marine environments. The concentration of PCBs within an organism will increase over their lifetime; this process
512-551: A change in the public perception of the residential school system, as well as official government apologies, and a (controversial) legal settlement. Colonization had a significant impact on First Nations diet and health. According to the historian Mary-Ellen Kelm, "inadequate reserve allocations, restrictions on the food fishery, overhunting, and over-trapping" alienated First Nations from their traditional way of life, which undermined their physical, mental, emotional, and spiritual health. As Canadian ideas of progress evolved around
640-684: A compensation package for the claim. Existing property owners will not be affected, as settlement does not include expropriation. Under the Specific Claim Policy, the First Nation is entitled to be compensated for the Current Unimproved Market Value of the Claim Lands and Compensation for Loss of Use , the reasonable and probable Loss of Use that occurred because of the breach, from July 1, 1867 to 2009. Tobique First Nation and
768-653: A neutral Indian state in the American Old Northwest, and made this demand as late as 1814 at the peace negotiations at Ghent. The Americans rejected the idea, the British dropped it, and Britain's Indian allies lost British support. In addition, the Indians were no longer able to gather furs in American territory. Abandoned by their powerful sponsor, Great Lakes-area natives ultimately assimilated into American society, migrated to
896-412: A protest, refusing to pay the "bills" from NB Power. In addition, they demanded that the company remove from the reserve construction debris, including barrels filled with toxic pesticides and herbicides, and PCBs , that dated to the dam's construction. When the company threatened to cut off power to the reserve, a number of residents set up a blockade at the dam, requiring NB Power trucks to register with
1024-573: A result of health transfer was a factor that assisted the creation of the First Nations Health Authority in British Columbia. PCBs Because of their longevity, PCBs are still widely in use, even though their manufacture has declined drastically since the 1960s, when a host of problems were identified. With the discovery of PCBs' environmental toxicity , and classification as persistent organic pollutants , their production
1152-524: A right of access." More than 6,000 First Nations, Inuit and Métis served with British forces during First World War and Second World War . A generation of young native men fought on the battlefields of Europe during the Great War and approximately 300 of them died there. When Canada declared war on Germany on September 10, 1939, the native community quickly responded to volunteer. Four years later, in May 1943,
1280-538: A semi-closed application. In contrast, the major open application of PCBs was in carbonless copy ("NCR") paper , which even presently results in paper contamination. Other open applications were lubricating and cutting oils, and as plasticizers in paints and cements, stabilizing additives in flexible PVC coatings of electrical cables and electronic components, pesticide extenders, reactive flame retardants and sealants for caulking , adhesives , wood floor finishes, such as Fabulon and other products of Halowax in
1408-458: A significant quantity of PCBs. As the pressure of ocean water increases with depth, PCBs become heavier than water and sink to the deepest ocean trenches where they are concentrated. A small volume of PCBs has been detected throughout the Earth's atmosphere. The atmosphere serves as the primary route for global transport of PCBs, particularly for those congeners with one to four chlorine atoms. In
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#17328518060981536-400: A structural similarity and toxic mode of action with dioxins . Other toxic effects such as endocrine disruption (notably blocking of thyroid system functioning) and neurotoxicity are known. The bromine analogues of PCBs are polybrominated biphenyls (PBBs), which have analogous applications and environmental concerns. An estimated 1.2 million tons have been produced globally. Though
1664-417: A treatment of unwanted PCBs generally requires high heat or catalysis (see Methods of destruction below). PCBs readily penetrate skin , PVC (polyvinyl chloride), and latex (natural rubber). PCB-resistant materials include Viton , polyethylene , polyvinyl acetate (PVA), polytetrafluoroethylene (PTFE), butyl rubber , nitrile rubber , and Neoprene . PCBs are derived from biphenyl , which has
1792-675: A variant of Métis . The Métis as of 2013 predominantly speak English , with French a strong second language, as well as numerous Aboriginal tongues. Métis French is best preserved in Canada, Michif in the United States, notably in the Turtle Mountain Indian Reservation of North Dakota , where Michif is the official language of the Métis that reside on this Chippewa reservation. The encouragement and use of Métis French and Michif
1920-479: A wide range of chemical effects, including severe mercury poisoning. They suffered low birth rates, skewed birth-gender ratio, and health effects among the population. This led to legislation and eventually the Indian Health Transfer Policy that provided a framework for the assumption of control of health services by First Nations people, and set forth a developmental approach to transfer centred on
2048-560: Is a misnomer, given to Indigenous peoples of North America by European explorers who erroneously thought they had landed in the East Indies . The use of the term Native Americans , which the government and others have adopted in the United States, is not common in Canada. It refers more specifically to the Indigenous peoples residing within the boundaries of the US. The parallel term Native Canadian
2176-402: Is called bioaccumulation. PCB concentrations within an organism also change depending upon which trophic level they occupy. When an organism occupies a high trophic level, like orcas or humans , they will accumulate more PCBs than an organism that occupies a low trophic level, like phytoplankton . If enough organisms with a trophic level are killed due to the accumulation of toxins, like PCB,
2304-634: Is growing due to outreach within the five provincial Métis councils after at least a generation of steep decline. Canada's Indian and Northern Affairs define Métis to be those persons of mixed First Nation and European ancestry. Allied with the French, the first nations of the Wabanaki Confederacy of Acadia fought six colonial wars against the British and their native allies (See the French and Indian Wars , Father Rale's War and Father Le Loutre's War ). In
2432-753: Is not commonly used, but Native (in English) and Autochtone (in Canadian French ; from the Greek auto , own, and chthon , land) are. Under the Royal Proclamation of 1763 , also known as the "Indian Magna Carta , " the Crown referred to Indigenous peoples in British territory as tribes or nations. The term First Nations is capitalized. Bands and nations may have slightly different meanings. Within Canada,
2560-504: Is not well defined. The earliest accounts of contact occurred in the late 10th century, between the Beothuk and Norsemen . According to the Sagas of Icelanders , the first European to see what is now Canada was Bjarni Herjólfsson , who was blown off course en route from Iceland to Greenland in the summer of 985 or 986 CE. The first European explorers and settlers of what is now Canada relied on
2688-554: Is on the west coast of Vancouver Island . In pre-contact and early post-contact times, the number of nations was much greater, but smallpox and other consequences of contact resulted in the disappearance of groups, and the absorption of others into neighbouring groups. The Nuu-chah-nulth are relations of the Kwakwaka'wakw , the Haisla , and the Ditidaht . The Nuu-chah-nulth language is part of
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#17328518060982816-577: Is passed on through oral tradition of the Squamish indigenous peoples of the Pacific Northwest Coast . Prior to colonization and the introduction of writing had only oral tradition as a way to transmit stories, law, and knowledge across generations. The writing system established in the 1970s uses the Latin alphabet as a base. Knowledgeable elders have the responsibility to pass historical knowledge to
2944-626: Is performing more functions in the warmer months, it naturally has a faster metabolism and has less PCB accumulation. However, multiple cold-water periods mixed with toxic PCBs with coplanar chlorine molecules can be detrimental to perch health. Enantiomers of chiral compounds have similar chemical and physical properties, but can be metabolized by the body differently. This was looked at in bowhead whales ( Balaena mysticetus ) for two main reasons: they are large animals with slow metabolisms (meaning PCBs will accumulate in fatty tissue) and few studies have measured chiral PCBs in cetaceans. They found that
3072-530: Is the primary source of PCB contamination in the atmosphere. In the biosphere , PCBs can be degraded by the sun , bacteria or eukaryotes , but the speed of the reaction depends on both the number and the disposition of chlorine atoms in the molecule: less substituted, meta - or para -substituted PCBs undergo biodegradation faster than more substituted congeners. In bacteria, PCBs may be dechlorinated through reductive dechlorination , or oxidized by dioxygenase enzyme. In eukaryotes, PCBs may be oxidized by
3200-431: Is thought to be linked to PCB 77 metabolism, something that was not measured in this study. Temperature plays a key role in the ecology, physiology and metabolism of aquatic species. The rate of PCB metabolism was temperature dependent in yellow perch ( Perca flavescens ). In fall and winter, only 11 out of 72 introduced PCB congeners were excreted and had halflives of more than 1,000 days. During spring and summer when
3328-488: The Citizenship Act was amended to grant formal citizenship to Status Indians and Inuit, retroactively as of January 1947. In 1960, First Nations people received the right to vote in federal elections without forfeiting their Indian status. By comparison, Native Americans in the United States had been allowed to vote since the 1920s. In his 1969 White Paper , then- Minister of Indian Affairs , Jean Chrétien , proposed
3456-455: The Arctic Circle . There are 634 recognized First Nations governments or bands across Canada. Roughly half are located in the provinces of Ontario and British Columbia . Under Charter jurisprudence , First Nations are a "designated group," along with women, visible minorities , and people with physical or mental disabilities. First Nations are not defined as a visible minority by
3584-608: The Atlantic coast. Together with other Anicinàpek, they arrived at the "First Stopping Place" near Montreal. While the other Anicinàpe peoples continued their journey up the St. Lawrence River , the Algonquins settled along the Ottawa River ( Kitcisìpi ), an important highway for commerce, cultural exchange, and transportation. A distinct Algonquin identity, though, was not realized until after
3712-593: The British Parliament's Slavery Abolition Act finally abolished slavery in all parts of the British Empire . Historian Marcel Trudel has documented 4,092 recorded slaves throughout Canadian history, of which 2,692 were Aboriginal people, owned by the French, and 1,400 blacks owned by the British, together owned by approximately 1,400 masters. Trudel also noted 31 marriages took place between French colonists and Aboriginal slaves. British agents worked to make
3840-692: The Cowichan and Fraser rivers, and those from Saskatchewan managed to produce good harvests. Since 1881, those First Nations people living in the prairie provinces required permits from Indian Agents to sell any of their produce. Later the government created a pass system in the old Northwest Territories that required indigenous people to seek written permission from an Indian Agent before leaving their reserves for any length of time. Indigenous people regularly defied those laws, as well as bans on Sun Dances and potlatches, in an attempt to practice their culture. The 1930 Constitution Act or Natural Resources Acts
3968-537: The District of Saskatchewan under Riel against the Dominion of Canada, which they believed had failed to address their concerns for the survival of their people. In 1884, 2,000 Cree from reserves met near Battleford to organize into a large, cohesive resistance. Discouraged by the lack of government response but encouraged by the efforts of the Métis at armed rebellion, Wandering Spirit and other young militant Cree attacked
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4096-644: The Great Lakes and the Illinois Country . The alliance involved French settlers on the one side, and on the other side were the Abenaki, Odawa, Menominee , Ho-Chunk (Winnebago), Mississaugas , Illiniwek , Huron- Petun , Potawatomi etc. It allowed the French and the Indians to form a haven in the middle- Ohio valley before the open conflict between the European powers erupted. In the Royal Proclamation of 1763 ,
4224-688: The Liberals began to back away from the 1969 White Paper, particularly after the Calder case decision in 1973. After the Canadian Supreme Court recognized that indigenous rights and treaty rights were not extinguished, a process was begun to resolve land claims and treaty rights and is ongoing today. In 1970, severe mercury poisoning , called Ontario Minamata disease , was discovered among Asubpeeschoseewagong First Nation and Wabaseemoong Independent Nations people, who lived near Dryden, Ontario . There
4352-544: The Makah tribe practising death by starvation as punishment and Pacific coast tribes routinely performing ritualized killings of slaves as part of social ceremonies into the mid-1800s. Slave-owning tribes of the fishing societies, such as the Yurok and Haida lived along the coast from what is now Alaska to California . Fierce warrior indigenous slave-traders of the Pacific Northwest Coast raided as far south as California. Slavery
4480-568: The North Saskatchewan River and purchased a great deal of European trade goods through Cree middlemen from the Hudson's Bay Company . The lifestyle of this group was semi-nomadic, and they followed the herds of bison during the warmer months. They traded with European traders, and worked with the Mandan , Hidatsa , and Arikara tribes. In the earliest oral history , the Algonquins were from
4608-597: The North-West Territories . Offended by the concepts of the treaties, Cree chiefs resisted them. Big Bear refused to sign Treaty 6 until starvation among his people forced his hand in 1882. His attempts to unite Indigenous nations made progress. In 1884 the Métis (including the Anglo-Métis) asked Louis Riel to return from the United States, where he had fled after the Red River Rebellion , to appeal to
4736-737: The Three Sisters ( maize / beans / squash ), the Iroquois became powerful because of their confederacy. Gradually the Algonquians adopted agricultural practises enabling larger populations to be sustained. The Assiniboine were close allies and trading partners of the Cree, engaging in wars against the Gros Ventres alongside them, and later fighting the Blackfoot. A Plains people, they went no further north than
4864-513: The Treaty of Tordesillas , these two kingdoms decided to draw the dividing line running north–south, 370 leagues (from 1,500 to 2,200 km (930 to 1,370 mi) approximately depending on the league used) west of the Cape Verde Islands. Land to the west would be Spanish, to the east Portuguese. Given the uncertain geography of the day, this seemed to give the "new founde isle" to Portugal. On
4992-662: The Wakashan language group. In 1999 the discovery of the body of Kwäday Dän Ts'ìnchi provided archaeologists with significant information on indigenous tribal life prior to extensive European contact. Kwäday Dän Ts'ìnchi (meaning "Long Ago Person Found" in Southern Tutchone ), or "Canadian Ice Man", is a naturally mummified body that a group of hunters found in Tatshenshini-Alsek Provincial Park in British Columbia. Radiocarbon dating of artifacts found with
5120-422: The cytochrome P450 enzyme. Like many lipophilic toxins, PCBs undergo biomagnification and bioaccumulation primarily due to the fact that they are easily retained within organisms. Plastic pollution, specifically microplastics , are a major contributor of PCBs into the biosphere and especially into marine environments. PCBs concentrate in marine environments because freshwater systems, like rivers, act as
5248-535: The 1502 Cantino map , Newfoundland appears on the Portuguese side of the line (as does Brazil). An expedition captured about 60 Aboriginal people as slaves who were said to "resemble gypsies in colour, features, stature and aspect; are clothed in the skins of various animals ...They are very shy and gentle, but well formed in arms and legs and shoulders beyond description ...." Some captives, sent by Gaspar Corte-Real , reached Portugal. The others drowned, with Gaspar, on
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5376-424: The 17th, 18th and 19th centuries and Europeans , mainly French. The Métis were historically the children of French fur traders and Nehiyaw women or, from unions of English or Scottish traders and Northern Dene women ( Anglo-Métis ). The Métis spoke or still speak either Métis French or a mixed language called Michif . Michif , Mechif or Métchif is a phonetic spelling of the Métis pronunciation of Métif ,
5504-567: The 19th century, the Canadian Indian residential school system was intended to force the assimilation of Aboriginal and First Nations people into European-Canadian society. The purpose of the schools, which separated children from their families, has been described by commentators as "killing the Indian in the child." Funded under the Indian Act by Indian and Northern Affairs Canada, a branch of
5632-445: The 20th century of cultural genocide and ethnocide . There was widespread physical and sexual abuse . Overcrowding, poor sanitation, and a lack of medical care led to high rates of tuberculosis , and death rates of up to 69%. Details of the mistreatment of students had been published numerous times throughout the 20th century, but following the closure of the schools in the 1960s, the work of indigenous activists and historians led to
5760-465: The Americas , or " first peoples ". First Nation as a term became officially used by the government beginning in 1980s to replace the term Indian band in referring to groups of Indians with common government and language. The First Nations people had begun to identify by this term during 1970s activism, in order to avoid using the word Indian , which some considered offensive. No legal definition of
5888-669: The Atlantic coast were the Beothuk , Maliseet , Innu , Abenaki and Mi'kmaq . The Blackfoot Confederacy resides in the Great Plains of Montana and Canadian provinces of Alberta , British Columbia and Saskatchewan . The name Blackfoot came from the dye or paint on the bottoms of their leather moccasins . One account claimed that the Blackfoot Confederacies walked through the ashes of prairie fires, which in turn blackened
6016-542: The Beothuk disappeared entirely. There are reports of contact made before Christopher Columbus between the first peoples and those from other continents. Even in Columbus' time there was much speculation that other Europeans had made the trip in ancient or contemporary times; Gonzalo Fernández de Oviedo y Valdés records accounts of these in his General y natural historia de las Indias of 1526, which includes biographical information on Columbus. Aboriginal first contact period
6144-520: The British agents discouraged any warlike activities or raids on American settlements, but the Americans became increasingly angered, and this became one of the causes of the War of 1812 . In the war, the great majority of First Nations supported the British, and many fought under the aegis of Tecumseh . But Tecumseh died in battle in 1813 and the Indian coalition collapsed. The British had long wished to create
6272-522: The British ceded the Old Northwest to the United States in the Treaty of Paris in 1783, it kept fortifications and trading posts in the region until 1795. The British then evacuated American territory, but operated trading posts in British territory, providing weapons and encouragement to tribes that were resisting American expansion into such areas as Ohio, Indiana, Michigan, Illinois and Wisconsin. Officially,
6400-471: The British recognized the treaty rights of the indigenous populations and resolved to only settle those areas purchased lawfully from the indigenous peoples. Treaties and land purchases were made in several cases by the British, but the lands of several indigenous nations remain unceded and/or unresolved. First Nations routinely captured slaves from neighbouring tribes. Sources report that the conditions under which First Nations slaves lived could be brutal, with
6528-517: The Carolinas all stimulated destructive wars over land with their immediate Indian neighbors...Settlement patterns in New France also curtailed the kind of relentless and destructive expansion and land-grabbing that afflicted many British colonies." The Métis (from French métis – "mixed") are descendants of unions between Cree , Ojibwe , Algonquin , Saulteaux , Menominee and other First Nations in
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#17328518060986656-587: The Creator, or in the Squamish language keke7nex siyam . He called this man his brother. It was from these two men that the population began to rise and the Squamish spread back through their territory. The Iroquois influence extended from northern New York into what are now southern Ontario and the Montreal area of modern Quebec. The Iroquois Confederacy is, from oral tradition, formed circa 1142. Adept at cultivating
6784-536: The First Nation, in collaboration with the provincial government, will be negotiating a settlement compensation package. No existing landowners will be disturbed. An 1854 survey established that the original Tobique reserve had an area of 18,394 acres. The Tobique lost 2,539 acres in the town of Perth due to squatters pre- and post-confederation. In addition, they argue under the Tobique Specific Land Claim (see sections below) that they lost 10,433 acres in
6912-590: The First Nations into military allies of the British, providing supplies, weapons, and encouragement. During the American Revolutionary War (1775–1783) most of the tribes supported the British. In 1779, the Americans launched a campaign to burn the villages of the Iroquois in New York State. The refugees fled to Fort Niagara and other British posts, with some remaining permanently in Canada. Although
7040-421: The First Nations peoples, for resources and trade to sustain a living. The first written accounts of interaction show a predominantly Old world bias, labelling the indigenous peoples as "savages", although the indigenous peoples were organized and self-sufficient. In the early days of contact, the First Nations and Inuit populations welcomed the Europeans, assisting them in living off the land and joining forces with
7168-563: The French and British in their various battles. It was not until the colonial and imperial forces of Britain and France established dominant settlements and, no longer needing the help of the First Nations people, began to break treaties and force them off the land that the antagonism between the two groups grew. The Portuguese Crown claimed that it had territorial rights in the area visited by Cabot. In 1493 Pope Alexander VI – assuming international jurisdiction – had divided lands discovered in America between Spain and Portugal. The next year, in
7296-407: The Nation before entry. In 2009, tensions escalated when an NB Power truck did not stop at a road block. Members of the Nation seized the NB Power truck. On June 30, 2009, the provincial Minister of Aboriginal Affairs committed to funding the clean-up of toxic and other wastes dumped at and around the dam, as well as restoration of eroded riverbanks, further damages noted by the Tobique. The dams on
7424-420: The New Brunswick Power Corporation (NB Power) (a Crown corporation ) have had a long history of confrontation over uses of the land and waters. The First Nation rejected the company's bid to construct a hydro-electric dam on the Tobique River in 1844, and in 1895. By 1945, the provincial and federal Canadian governments had started development of a dam on the Tobique River , the Tobique Narrows Dam . In 1950,
7552-464: The PCB metabolism in the liver of four sea turtle species (green, olive ridley , loggerhead and hawksbill), green and hawksbill sea turtles have noticeably higher hydroxylation rates of PCB 52 than olive ridley or loggerhead sea turtles. This is because the green and hawksbill sea turtles have higher P450 2-like protein expression. This protein adds three hydroxyl groups to PCB 52, making it more polar and water-soluble. P450 3-like protein expression that
7680-440: The Port Royal settlement. Champlain persuaded First Nations to allow him to settle along the St. Lawrence, where in 1608 he would found France's first permanent colony in Canada at Quebec City. The colony of Acadia grew slowly, reaching a population of about 5,000 by 1713. New France had cod -fishery coastal communities, and farm economies supported communities along the St. Lawrence River. French voyageurs travelled deep into
7808-434: The Premier of New Brunswick approved the construction of the Mactaquac Dam in south-central New Brunswick without the consent of Tobique First Nation, the legal landowners. It was put into service in 1953. Despite a longstanding (1945) offer from Tobique to settle all disputes in exchange for unlimited use of the dam's power within Tobique for all domestic uses [and] business on the reservation. According to many reports, "this
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#17328518060987936-480: The St. John's River have drastically reduced the Atlantic Salmon run, cutting into the ability of the Tobique to feed themselves and adversely affecting the local economy. As the blockade entered its third month in the summer of 2009, the federal government's Department of Justice accepted the Tobique First Nation’s specific land claim for negotiation. It is likely to be one of the largest in Atlantic Canada. The Tobique wish to negotiate some sharing of benefits from
8064-401: The Tobique river saving and excepting a tract of two hundred acres on the south-side designated as Indian Meadows." The government sold most of the land to individuals, except for 169 acres (68 ha), which was returned to the Tobique band in 1965. The Tobique First Nation has been working on the issues of land claims. It has filed two specific claims suits: one for the 2,539 acres lost in
8192-448: The U.S., de-dusting agents, waterproofing compounds, casting agents. It was also used as a plasticizer in paints and especially "coal tars" that were used widely to coat water tanks, bridges and other infrastructure pieces. Modern sources include pigments , which may be used in inks for paper or plastic products. PCBs are also still found in old equipment like capacitors, ballasts, X-ray machine, and other e-waste. PCBs have entered
8320-926: The US EPA enforced the federal ban as of 1978, PCBs continued to create health problems in later years through their continued presence in soil and sediment, and from products which were made before 1979. In 1988, Japanese scientists Tanabe et al. estimated 370,000 tons were in the environment globally, and 780,000 tons were present in products, landfills, and dumps or kept in storage. The compounds are pale-yellow viscous liquids . They are hydrophobic, with low water solubilities : 0.0027–0.42 ng /L for Aroclors brand , but they have high solubilities in most organic solvents , oils, and fats . They have low vapor pressures at room temperature. They have dielectric constants of 2.5–2.7, very high thermal conductivity , and high flash points (from 170 to 380 °C). The density varies from 1.182 to 1.566 g/cm . Other physical and chemical properties vary widely across
8448-402: The US, Aroclor 1260 and Aroclor 1254 were the main mixtures used before 1950; Aroclor 1242 was the main mixture used in the 1950s and 1960s until it was phased out in 1971 and replaced by Aroclor 1016. One estimate (2006) suggested that 1 million tonnes of PCBs had been produced. 40% of this material was thought to remain in use. Another estimate put the total global production of PCBs on
8576-505: The abolition of the Indian Act of Canada, the rejection of Aboriginal land claims , and the assimilation of First Nations people into the Canadian population with the status of "other ethnic minorities" rather than as a distinct group. Harold Cardinal and the Indian Chiefs of Alberta responded with a document entitled "Citizens Plus" but commonly known as the "Red Paper". In it, they explained Status Indians' widespread opposition to Chrétien's proposal. Prime Minister Pierre Trudeau and
8704-602: The age of 35 ). By 1790 the abolition movement was gaining ground in Canada and the ill intent of slavery was evidenced by an incident involving a slave woman being violently abused by her slave owner on her way to being sold in the United States. The Act Against Slavery of 1793 legislated the gradual abolition of slavery: no slaves could be imported; slaves already in the province would remain enslaved until death, no new slaves could be brought into Upper Canada , and children born to female slaves would be slaves but must be freed at age 25. The act remained in force until 1833 when
8832-432: The alleged 1892 Surrender. In 1890 the government of New Brunswick attempted to open a large portion of the Tobique Reserve for settlement by non-Aboriginal peoples. In order to move towards this goal, the government of New Brunswick conducted a land surrender in 1892. But, the surrender was conducted without the consent of the Order in Council, a necessary step in the surrender process. The surrender concerned land "south of
8960-510: The atmosphere, PCBs may be degraded by hydroxyl radicals , or directly by photolysis of carbon–chlorine bonds (even if this is a less important process). Atmospheric concentrations of PCBs tend to be lowest in rural areas, where they are typically in the picogram per cubic meter range, higher in suburban and urban areas, and highest in city centres, where they can reach 1 ng /m or more. In Milwaukee , an atmospheric concentration of 1.9 ng/m has been measured, and this source alone
9088-517: The average PCB concentrations in the blubber were approximately four times higher than the liver; however, this result is most likely age- and sex-dependent. As reproductively active females transferred PCBs and other poisonous substances to the fetus, the PCB concentrations in the blubber were significantly lower than males of the same body length (less than 13 meters). The toxicity of PCBs varies considerably among congeners . The coplanar PCBs, known as nonortho PCBs because they are not substituted at
9216-399: The average daily water temperature was above 20 °C, persistent PCBs had halflives of 67 days. The main excretion processes were fecal egestion, growth dilution and loss across respiratory surfaces. The excretion rate of PCBs matched with the perch's natural bioenergetics , where most of their consumption, respiration and growth rates occur during the late spring and summer. Since the perch
9344-467: The body placed the age of the find between 1450 AD and 1700 AD. Genetic testing showed that he was a member of the Champagne and Aishihik First Nations . Aboriginal people in Canada interacted with Europeans as far back as 1000 AD, but prolonged contact came only after Europeans established permanent settlements in the 17th and 18th centuries. European written accounts noted friendliness on
9472-454: The bottoms of their moccasins. They had migrated onto the Great Plains (where they followed bison herds and cultivated berries and edible roots) from the area of now eastern Canada and the northeastern United States. Historically, they allowed only legitimate traders into their territory, making treaties only when the bison herds were exterminated in the 1870s. Pre-contact Squamish history
9600-508: The canoe routes west and a land route to the west coast. According to the oral history, seven great miigis (radiant/iridescent) beings appeared to the peoples in the Waabanakiing to teach the peoples of the mide way of life. One of the seven great miigis beings was too spiritually powerful and killed the peoples in the Waabanakiing when the people were in its presence. The six great miigis beings remained to teach while
9728-452: The class. As the degree of chlorination increases, melting point and lipophilicity increase, and vapour pressure and water solubility decrease. PCBs do not easily break down or degrade, which made them attractive for industries. PCB mixtures are resistant to acids, bases, oxidation, hydrolysis, and temperature change. They can generate extremely toxic dibenzodioxins and dibenzofurans through partial oxidation. Intentional degradation as
9856-433: The concept of self-determination in health. Through this process, the decision to enter into transfer discussions with Health Canada rests with each community. Once involved in transfer, communities are able to take control of health programme responsibilities at a pace determined by their individual circumstances and health management capabilities. The capacity, experience and relationships developed by First Nations as
9984-491: The construction of the Canadian Pacific Railway brought large numbers of European settlers west who encroached on Indigenous territory. European Canadians established governments, police forces, and courts of law with different foundations from indigenous practices. Various epidemics continued to devastate Indigenous communities. All of these factors had a profound effect on Indigenous people, particularly those from
10112-951: The criteria of Statistics Canada . North American indigenous peoples have cultures spanning thousands of years. Some of their oral traditions accurately describe historical events, such as the Cascadia earthquake of 1700 and the 18th-century Tseax Cone eruption. Written records began with the arrival of European explorers and colonists during the Age of Discovery in the late 15th century. European accounts by trappers , traders , explorers , and missionaries give important evidence of early contact culture. In addition, archeological and anthropological research, as well as linguistics , have helped scholars piece together an understanding of ancient cultures and historic peoples. Collectively, First Nations (Indians), Inuit, and Métis peoples constitute Indigenous peoples in Canada , Indigenous peoples of
10240-554: The dam, with some portion of electricity available at least to reserve residents but preferably also for resale. A deal was reached in December 2009 to share electricity, remediate the dump site and provide training for First Nation members to work at the dam. Under the December 2009 deal, New Brunswick Power will provide five megawatts of power from the dam to the Tobique. The dam produces approximately 20 megawatts. However, with modern run of
10368-528: The development of agriculture, the surest foundation of a colony in the New World. According to David L. Preston , after French colonisation with Champlain "the French were able to settle in the depopulated St. Lawrence Valley, not directly intruding on any Indian nation's lands. This geographic and demographic fact presents a striking contrast to the British colonies' histories: large numbers of immigrants coming to New England, New York, Pennsylvania, Virginia, and
10496-485: The dividing of the Anicinàpek at the "Third Stopping Place", estimated at 2,000 years ago near present-day Detroit . According to their tradition, and from recordings in birch bark scrolls ( wiigwaasabak ), Ojibwe (an Algonquian-speaking people) came from the eastern areas of North America, or Turtle Island , and from along the east coast. They traded widely across the continent for thousands of years and knew of
10624-414: The easternmost regions of Slovakia. Although deliberate production of PCBs is banned by international treaty, significant amounts of PCBs are still being "inadvertently" produced. Research suggests that 45,000 tons of 'by-product' PCBs are legally produced per year in the US as part of certain chemical and product formulations. Commercial production of PCBs was banned in the United States in 1979, with
10752-425: The environment through both use and disposal. The environmental fate of PCBs is complex and global in scale. Because of their low vapour pressure , PCBs accumulate primarily in the hydrosphere , despite their hydrophobicity , in the organic fraction of soil , and in organisms including the human body. The hydrosphere is the main reservoir. The immense volume of water in the oceans is still capable of dissolving
10880-560: The federal government, the schools were run by churches of various denominations – about 60% by Roman Catholics, and 30% by the Anglican Church of Canada and the United Church of Canada , along with its pre-1925 predecessors, Presbyterian , Congregationalist and Methodist churches. The attempt to force assimilation involved punishing children for speaking their own languages or practising their own faiths, leading to allegations in
11008-463: The following names: Brazil Czech Republic and Slovakia France Germany Italy Japan Former USSR United Kingdom United States The only North American producer, Monsanto Company , marketed PCBs under the trade name Aroclor from 1930 to 1977. These were sold under trade names followed by a four-digit number. In general, the first two digits refer to the product series as designated by Monsanto (e.g. 1200 or 1100 series);
11136-475: The formula C 12 H 10 , sometimes written (C 6 H 5 ) 2 . In PCBs, some of the hydrogen atoms in biphenyl are replaced by chlorine atoms. There are 209 different chemical compounds in which one to ten chlorine atoms can replace hydrogen atoms. PCBs are typically used as mixtures of compounds and are given the single identifying CAS number 1336-36-3 . About 130 different individual PCBs are found in commercial PCB products. Toxic effects vary depending on
11264-565: The fur trade, conflicts with colonial authorities and settlers and loss of land and a subsequent loss of nation self-suffiency. For example, during the late 1630s, smallpox killed more than half of the Huron , who controlled most of the early fur trade in what became Canada. Reduced to fewer than 10,000 people, the Huron Wendat were attacked by the Iroquois, their traditional enemies. In the Maritimes,
11392-513: The government declared that, as British subjects , all able Indian men of military age could be called up for training and service in Canada or overseas. Following the end of the Second World War, laws concerning First Nations in Canada began to change, albeit slowly. The federal prohibition of potlatch and Sun Dance ceremonies ended in 1951. Provincial governments began to accept the right of Indigenous people to vote. In June 1956, section 9 of
11520-510: The government on their behalf. The government gave a vague response. In March 1885, Riel, Gabriel Dumont , and Honoré Jackson (a.k.a. Will Jackson) set up the Provisional Government of Saskatchewan , believing that they could influence the federal government in the same way as they had in 1869. The North-West Rebellion of 1885 was a brief and unsuccessful uprising by the Métis people of
11648-588: The hinterlands (of what is today Quebec, Ontario, and Manitoba, as well as what is now the American Midwest and the Mississippi Valley ), trading with First Nations as they went – guns, gunpowder, cloth, knives, and kettles for beaver furs. The fur trade kept the interest in France's overseas colonies alive, yet only encouraged a small colonial population, as minimal labour was required. The trade also discouraged
11776-602: The late 18th century, European Canadians encouraged First Nations to assimilate into the European-based culture, referred to as " Canadian culture ". The assumption was that this was the "correct" culture because the Canadians of European descent saw themselves as dominant, and technologically, politically and culturally superior. There was resistance against this assimilation and many businesses denied European practices. The Tecumseh Wigwam of Toronto, for example, did not adhere to
11904-405: The late 20th century, members of various nations more frequently identify by their tribal or national identity only, e.g., "I'm Haida ", or "We're Kwantlens ", in recognition of the distinct First Nations. First Nations peoples had settled and established trade routes across what is now Canada by 500 BCE – 1,000 CE. Communities developed, each with its own culture, customs, and character. In
12032-450: The most likely to leave the organism. However, some metabolites of PCBs containing ortho – meta protons have increased steric hindrance from the oxygen, causing increased stability and an increased chance of accumulation. Metabolism is also dependent on the species of organism; different organisms have slightly different P450 enzymes that metabolize certain PCBs better than others. Looking at
12160-411: The naming system is Aroclor 1016 which was produced by distilling 1242 to remove the highly chlorinated congeners to make a more biodegradable product. "1016" was given to this product during Monsanto's research stage for tracking purposes but the name stuck after it was commercialized. Different Aroclors were used at different times and for different applications. In electrical equipment manufacturing in
12288-533: The next generation. People lived and prospered for thousands of years until the Great Flood . In another story, after the Flood, they repopulated from the villages of Schenks and Chekwelp , located at Gibsons . When the water lines receded, the first Squamish came to be. The first man, named Tseḵánchten, built his longhouse in the village, and later on another man named Xelálten, appeared on his longhouse roof and sent by
12416-563: The northeastern coastline of what is now the United States. Under Samuel de Champlain, the Saint Croix settlement moved to Port Royal (today's Annapolis Royal, Nova Scotia ), a new site across the Bay of Fundy , on the shore of the Annapolis Basin , an inlet in western Nova Scotia. Acadia became France's most successful colony to that time. The cancellation of Dugua's fur monopoly in 1607 ended
12544-773: The northwest were the Athapaskan-speaking peoples, Slavey , Tłı̨chǫ , Tutchone-speaking peoples, and Tlingit . Along the Pacific coast were the Haida, Tsimshian , Salish, Kwakiutl , Nuu-chah-nulth , Nisga'a and Gitxsan . In the plains were the Blackfoot, Kainai , Sarcee and Northern Peigan . In the northern woodlands were the Cree and Chipewyan . Around the Great Lakes were the Anishinaabe , Algonquin , Iroquois and Wyandot . Along
12672-606: The ocean as well. If the seventh miigis being stayed, it would have established the Thunderbird doodem . The Nuu-chah-nulth are one of the Indigenous peoples of the Pacific Northwest Coast . The term Nuu-chah-nulth is used to describe fifteen separate but related First Nations, such as the Tla-o-qui-aht First Nations , Ehattesaht First Nation and Hesquiaht First Nation whose traditional home
12800-486: The one returned into the ocean. The six great miigis beings then established doodem (clans) for the peoples in the east. Of these doodem , the five original Anishinaabe doodem were the Wawaazisii ( Bullhead ), Baswenaazhi (Echo-maker, i.e., Crane ), Aan'aawenh ( Pintail Duck ), Nooke (Tender, i.e., Bear ) and Moozoonsii (Little Moose ), then these six miigis beings returned into
12928-517: The order of 1.5 million tonnes. The United States was the single largest producer with over 600,000 tonnes produced between 1930 and 1977. The European region follows with nearly 450,000 tonnes through 1984. It is unlikely that a full inventory of global PCB production will ever be accurately tallied, as there were factories in Poland, East Germany, and Austria that produced unknown amounts of PCBs. As of 2002 , there were still 21,500 tons of PCBs stored in
13056-673: The part of the First Nations, who profited in trade with Europeans. Such trade strengthened the more organized political entities such as the Iroquois Confederation. The Aboriginal population is estimated to have been between 200,000 and two million in the late 15th century. The effect of European colonization was a 40 to 80 percent Aboriginal population decrease post-contact. This is attributed to various factors, including repeated outbreaks of European infectious diseases such as influenza , measles and smallpox (to which they had not developed immunity), inter-nation conflicts over
13184-599: The passage of the Toxic Substances Control Act (TSCA). The utility of PCBs is based largely on their chemical stability, including low flammability and high dielectric constant. In an electric arc, PCBs generate incombustible gases. Use of PCBs is commonly divided into closed and open applications. Examples of closed applications include coolants and insulating fluids ( transformer oil ) for transformers and capacitors , such as those used in old fluorescent light ballasts, and hydraulic fluids considered
13312-440: The plains who had relied heavily on bison for food and clothing. Most of those nations that agreed to treaties had negotiated for a guarantee of food and help to begin farming. Just as the bison disappeared (the last Canadian hunt was in 1879), Lieutenant-Governor Edgar Dewdney cut rations to indigenous people in an attempt to reduce government costs. Between 1880 and 1885, approximately 3,000 Indigenous people starved to death in
13440-403: The return voyage. Gaspar's brother, Miguel Corte-Real , went to look for him in 1502, but also failed to return. In 1604 King Henry IV of France granted Pierre Dugua, Sieur de Mons a fur-trade monopoly. Dugua led his first colonization expedition to an island located near to the mouth of the St. Croix River . Samuel de Champlain , his geographer, promptly carried out a major exploration of
13568-420: The ring positions ortho to (next to) the other ring, (such as PCBs 77, 126 and 169), tend to have dioxin -like properties, and generally are among the most toxic congeners. Because PCBs are almost invariably found in complex mixtures, the concept of toxic equivalency factors ( TEFs ) has been developed to facilitate risk assessment and regulation, where more toxic PCB congeners are assigned higher TEF values on
13696-469: The rings. Phase I reactions occur by adding an oxygen to either of the benzene rings by Cytochrome P450 . The type of P450 present also determines where the oxygen will be added; phenobarbital (PB)-induced P450s catalyze oxygenation to the meta-para positions of PCBs while 3-methylcholanthrene (3MC)-induced P450s add oxygens to the ortho – meta positions. PCBs containing ortho – meta and meta – para protons can be metabolized by either enzyme, making them
13824-473: The river hydroelectric technology, the power potential of the river is very much greater, in hundreds of megawatts. First Nations in Canada First Nations ( French : Premières Nations ) is a term used to identify Indigenous peoples in Canada who are neither Inuit nor Métis . Traditionally, First Nations in Canada were peoples who lived south of the tree line , and mainly south of
13952-656: The sale of their lands in 1916 and 1917, the Department of Indian Affairs held back funding necessary for farming until they relented. In British Columbia, the McKenna–McBride Royal Commission was created in 1912 to settle disputes over reserve lands in the province. The claims of Indigenous people were ignored, and the commission allocated new, less valuable lands (reserves) for First Nations. Those nations who managed to maintain their ownership of good lands often farmed successfully. Indigenous people living near
14080-410: The second two numbers indicate the percentage of chlorine by mass in the mixture. Thus, Aroclor 1260 is a 1200 series product and contains 60% chlorine by mass. It is a myth that the first two digits referred to the number of carbon atoms; the number of carbon atoms do not change in PCBs. The 1100 series was a crude PCB material which was distilled to create the 1200 series PCB product. The exception to
14208-454: The second war, Queen Anne's War , the British conquered Acadia (1710). The sixth and final colonial war between the nations of France and Great Britain (1754–1763), resulted in the French giving up their claims and the British claimed the lands of Canada (New France) . In this final war, the Franco-Indian alliance brought together Americans, First Nations and the French, centred on
14336-675: The small town of Frog Lake , killing Thomas Quinn, an Indian agent , and eight others. Although Big Bear actively opposed the attacks, he was charged and tried for treason and sentenced to three years in prison. After the Red River Rebellion of 1869–1870, Métis moved from Manitoba to the District of Saskatchewan, where they founded a settlement at Batoche on the South Saskatchewan River . In Manitoba settlers from Ontario began to arrive. They pushed for land to be allotted in
14464-515: The specific PCB. In terms of their structure and toxicity, PCBs fall into two distinct categories, referred to as coplanar or non- ortho -substituted arene substitution patterns and noncoplanar or ortho -substituted congeners. Di- ortho -substituted, non-coplanar PCBs interfere with intracellular signal transduction dependent on calcium which may lead to neurotoxicity . ortho -PCBs can disrupt thyroid hormone transport by binding to transthyretin . Commercial PCB mixtures were marketed under
14592-447: The square concession system of English Canada , rather than the seigneurial system of strips reaching back from a river which the Métis were familiar with in their French-Canadian culture. The history of colonization is complex, varied according to the time and place. France and Britain were the main colonial powers involved, though the United States also began to extend its territory at the expense of indigenous people as well. From
14720-573: The start of the 20th century, the federal Indian policy was directed at removing Indigenous people from their communal lands and encouraging assimilation. Amendments to the Indian Act in 1905 and 1911 made it easier for the government to expropriate reserve lands from First Nations. The government sold nearly half of the Blackfoot reserve in Alberta to settlers. When the Kainai (Blood) Nation refused to accept
14848-569: The term First Nations has come into general use for Indigenous peoples other than Inuit and Métis . Outside Canada, the term can refer to Indigenous Australians , U.S. tribes within the Pacific Northwest , as well as supporters of the Cascadian independence movement . The singular, commonly used on culturally politicized reserves , is the term First Nations person (when gender-specific, First Nations man or First Nations woman ). Since
14976-478: The term exists. Some Indigenous peoples in Canada have also adopted the term First Nation to replace the word band in the formal name of their community. A band is a "body of Indians (a) for whose use and benefit in common lands ... have been set apart, (b) ... moneys are held ... or (c) declared ... to be a band for the purposes of", according to the Indian Act by the Canadian Crown . The term Indian
15104-403: The town of Perth ; and one for more than 10,000 acres lost in the 1892 surrender, which amounted to nearly two-thirds of its land. On May 23, 2008 Canada accepted only the second as the Tobique Specific Land Claim for negotiation on the basis of its lawful obligation due to an invalid surrender. Under the terms of negotiation, the government and First Nation have three years to reach agreement on
15232-500: The villages of the Fox nation , a tribe that was an ancient rival of the Miami people and their Algonquian allies. Native (or "pani", a corruption of Pawnee ) slaves were much easier to obtain and thus more numerous than African slaves in New France, but were less valued. The average native slave died at 18, and the average African slave died at 25 (the average European could expect to live until
15360-512: The west or to Canada, or were relocated onto reservations in Michigan and Wisconsin. Historians have unanimously agreed that the Indians were the major losers in the War of 1812. Living conditions for Indigenous people in the prairie regions deteriorated quickly. Between 1875 and 1885, settlers and hunters of European descent contributed to hunting the North American bison almost to extinction;
15488-425: The widely practiced Lord's Day observance, making it a popular spot, especially on Sundays. Moreover, Canadian policies were at times contradictory, such as through the late 19th century- Peasant Farm Policy that severely restricted farming on reserves, despite this practice being seen as important to assimilation efforts. These kinds of attempts reached a climax in the late 19th and early 20th centuries. Founded in
15616-440: Was banned for most uses by United States federal law on January 1, 1978. The International Agency for Research on Cancer (IARC) rendered PCBs as definite carcinogens in humans. According to the U.S. Environmental Protection Agency (EPA), PCBs cause cancer in animals and are probable human carcinogens. Moreover, because of their use as a coolant in electric transformers, PCBs still persist in built environments. Some PCBs share
15744-477: Was estimated to account for 120 kg/year of PCBs entering Lake Michigan . In 2008, concentrations as high as 35 ng /m , 10 times higher than the EPA guideline limit of 3.4 ng/m , have been documented inside some houses in the U.S. Volatilization of PCBs in soil was thought to be the primary source of PCBs in the atmosphere, but research suggests ventilation of PCB-contaminated indoor air from buildings
15872-616: Was extensive mercury pollution caused by Dryden Chemicals Company's waste water effluent in the Wabigoon - English River system. Because local fish were no longer safe to eat, the Ontario provincial government closed the commercial fisheries run by the First Nation people and ordered them to stop eating local fish. Previously it had made up the majority of their diet. In addition to the acute mercury poisoning in northwestern Ontario , Aamjiwnaang First Nation people near Sarnia , Ontario, experienced
16000-548: Was granted after a petition to the government by band members. Over the years, the reserve was reduced by surrenders to squatters and a major surrender in 1892. Roughly two-thirds of members of Tobique First Nation reside on the reserve lands. In 2009. the Government of Canada accepted the Tobique Specific Land Claim related to 10,533 acres (4,263 ha) which was lost in the invalid surrender of 1892. Canada and
16128-428: Was hereditary, the slaves and their descendants being considered prisoners of war . Some tribes in British Columbia continued to segregate and ostracize the descendants of slaves as late as the 1970s. Among Pacific Northwest tribes about a quarter of the population were slaves. The citizens of New France received slaves as gifts from their allies among First Nations peoples. Slaves were prisoners taken in raids against
16256-400: Was never honoured. As soon as the community had power lines, they received power bills. The Band Council paid these bills for Elders and community members on social assistance." In 2008, the Tobique began to refuse to pay for the electricity generated by the plant on their land. They have also reported that the damming of the river has created environmental problems. In 2008, the Tobique began
16384-400: Was part of a shift acknowledging indigenous rights . It enabled provincial control of Crown land and allowed Provincial laws regulating game to apply to Indians, but it also ensured that "Indians shall have the right ... of hunting, trapping and fishing game and fish for food at all seasons of the year on all unoccupied Crown lands and on any other lands to which the said Indians may have
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