New Studies of Mortality in Lead, Copper, and Nickel Smelting Industries

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In relation to lead, the authors conclude, “This study reaffirms the association of lead exposure with cardiovascular and kidney diseases; however, increased mortality observed for certain cancers is not likely to be due to lead exposure.”

Source: PubMed Abstract

For the nickel refining/copper smelting industries, the authors state, “It is likely that exposure to nickel compounds is the main reason for elevated nasal cancer risk among the nickel refinery employees and may also contribute to the excess risk of lung cancer.”

Source: PubMed Abstract

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