Lead pollution from industrial parks (nearly 3 million).
工业园造成的铅污染-接近300万。
The lead pigments are a big source of lead pollution.
含铅颜料是主要的铅污染源。
Lead pollution from improper battery recycling (nearly one million).
电池不恰当回收造成的铅污染-接近100万。
Pollution control of lead in food is very important for people health.
铅是重金属元素，因此食品中铅污染的控制对人体体健康至关重要。
Pollution control of lead in food is very important for people health.
铅是重金属元素，因此食品中铅污染的控制对人体健康至关重要。
Pollution control of lead in food is very important for people health.
铅是重金属元素，因此食品中铅污染的控制对人体健康至关重要。
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