PCB polychlorinated biphenyls

- May 24, 2017 -

PCB PCB is a kind of synthetic organic compounds used in North America in 1929 until 70s at the end of the business, although Canada is not the production of chemicals, but also has been widely used in electrical equipment insulation, heat exchanger, water systems and other special applications.

Decades later, people realized the pollution of PCBs to the global environment. It is a mixture of biphenyl chloride, which is very harmful to the human body. The Canadian government has taken measures to eliminate the PCB, but in 1977 occurred illegal import, processing and sales of PCB in Canada, and in 1985 PCB illegal release to the environment, life and the Canadian Constitution allows the PCB device owners continue to use PCB until equipment. In 1988, governments in all provinces in Canada began to regulate the storage, transportation and destruction of PCB.

PCB is not easy to break down in the natural environment, but also spread very far, PCB in the production, use, transportation and waste disposal in the process of entering the air, soil and rivers and oceans, small marine animals and fish PCB inhaled, and they become the living marine food, as a result, PCB in all marine organisms including mammals in marine organisms. PCB accumulates in marine organisms several times as much as it does in water.


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