求翻译：对于交通区，成份1解释的因子为铬、铜、汞、镍、锌；成份2解释的因子为镉、铅；成份3解释的因子为砷。铜、铅和锌主要来自交通污染，其中，锌来源于汽车轮胎的老化磨损、 汽油、车体的磨损等，铜污染大多因为汽油、车体的磨损等，铅来源于汽车尾气排放, 车灯汞灯等气体放电灯的广泛使用,这使得表层土壤中汞的含量远远超标。汞多用于汽车的燃煤因子，在燃煤过程中产生大量废气。与Hg污染来源相似，砷污染主要来源于燃煤源。是什么意思？

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ingredients for traffic zone 1 explained that the gene, chromium, copper, mercury, nickel, zinc; ingredients 2 explained the genes for cadmium, lead, arsenic ingredients 3 explained the gene. copper, lead and zinc, which mainly from traffic pollution sources, zinc in vehicle tires wear and tear, agi

Regarding communication zone, ingredient 1 explanation factor for chromium, c

Traffic areas, ingredients 1 explains the factor of chromium, copper, mercury, nickel and zinc; components 2 explanation of factors for CD, Pb; composition factor of 3 is interpreted as arsenic. Copper, lead and zinc from traffic pollution, where zinc comes from aging and wear of the tire wear and t