Lead deposits, which accumulated in soil and snow during the 1960s and '70s, were primarily the result of leadedgasoline emissions originating in the United States.
在二十世纪六七十年代，铅沉积就在土壤和雪中不断累积，这主要是美国的含铅汽油排放的后果。
2
Lead has been banned more widely from gasoline — with only a handful of nations still using leaded fuel.
铅已经广泛地禁止添加到汽油中——只有极少数几个国家还在使用含铅汽油。
3
The European Environmental Agency has pushed for more studies, saying cell phones could be as big a public health risk as smoking, asbestos and leadedgasoline.