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… properties such as POPs, or chemicals derived from certain heavy metals such as mercury might pose problems for human … properties such as POPs, or chemicals derived from certain heavy metals such as mercury might pose problems in the … and toxic properties such as POPs, or certain heavy metals such as mercury or their compounds might pose …

… in waste incineration, steel sintering and non-ferrous metal smelting industries has been reduced by more than 10 … regulations covering the whole life cycle of the toxic metal, including its mining, use, atmospheric emissions and … cooking or vehic- ular exhaust, overuse of pesticides, heavy metals released from power plants and factories …