environmental mercury contamination

基本解释

Contamination has also occurred as a result of accidents in formulations of feeds with arsenicals or from environmental contamination by lead, cadmium, or mercury.
含砷的饲料生产中出现事故也会导致污染，污染也可能来自铅、镉或汞造成的环境污染。
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Thousands of kids are still exposed to dangerous liquid mercury in schools and homes. Contamination can last years, and cleanups are costly By Jessica Knoblauch and Environmental Health News.
学校和家中的汞污染依然威胁着成千上万的儿童。这类污染会持续好几年，而且清理费用昂贵。
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