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  2. Mercury pollution in Canada - Wikipedia

    en.wikipedia.org/wiki/Mercury_pollution_in_Canada

    Mercury pollution has become a sensitive issue in Canada for the past few decades and many steps have been taken for prevention at local, national, and international levels. It has been found to have various negative health and environmental effects. [ 3 ]

  3. Pollution in Canada - Wikipedia

    en.wikipedia.org/wiki/Pollution_in_Canada

    Under the 1970 Arctic Waters Pollution Prevention Act, the Canadian government established a document to prevent pollution of Canadian Arctic waters. However, in recent years Arctic waters have become increasingly polluted. It was recently found that due to pollution some waters have levels of lead that are higher than the Canadian guidelines. [26]

  4. Water pollution in Canada - Wikipedia

    en.wikipedia.org/wiki/Water_pollution_in_Canada

    The 1970 Arctic Waters Pollution Prevention Act set new guidelines to prevent pollution of Canadian Arctic waters. By 2008, Fisheries and Oceans reported that some Arctic waters have levels of lead that are higher than the Canadian guidelines. [64] Pollution of the Arctic Ocean doubled from 2002 to 2012. [65]

  5. Canadian Environmental Protection Act, 1999 - Wikipedia

    en.wikipedia.org/wiki/Canadian_Environmental...

    The Canadian Environmental Protection Act, 1999 (CEPA, 1999; French: Loi canadienne sur la protection de l'environnement (1999)) is an act of the 36th Parliament of Canada, whose goal is to contribute to sustainable development through pollution prevention and to protect the environment, human life and health from the risks associated with toxic substances.

  6. Median lethal dose - Wikipedia

    en.wikipedia.org/wiki/Median_lethal_dose

    The earliest was the 1927 "conventional" procedure by Trevan, which requires 40 or more animals. The fixed-dose procedure, proposed in 1984, estimates a level of toxicity by feeding at defined doses and looking for signs of toxicity (without requiring death). [108]

  7. Maximum acceptable toxicant concentration - Wikipedia

    en.wikipedia.org/wiki/Maximum_Acceptable...

    The maximum acceptable toxicant concentration (MATC) is a value that is calculated through aquatic toxicity tests to help set water quality regulations for the protection of aquatic life. Using the results of a partial life-cycle chronic toxicity test, the MATC is reported as the geometric mean between the No Observed Effect Concentration ...

  8. Jury orders Bayer to pay $100 million over PCBs in Washington ...

    www.aol.com/news/bayer-must-pay-100-million...

    (Reuters) -A Washington jury on Tuesday ordered Bayer to pay $100 million to four people who say they were sickened by toxic chemicals known as PCBs at a Seattle-area school, but found the company ...

  9. Pesticides in Canada - Wikipedia

    en.wikipedia.org/wiki/Pesticides_in_Canada

    The Canadian Association of Pesticide Control Officials (CAPCO) was responsible to facilitate the information flow between both the departments and levels of government to aid in the coordination of federal and provincial regulatory efforts.