Picher, US, 2008: Years of lead and zinc mining turned the town into a superfund site with sinkholes, lead-laced mountains of rock, and tainted water.
2008年，美国皮丘：多年的铅和锌矿开采使这个地区多发灰岩坑、山石与铅融合和水污染。
He has been substantially involved in the US EPA programs in Superfund and the Resource Conservation and Recovery Act for approximately 20 years.
近20年，他一直投身于超级基金及资源保存与回收法案的美国环保署(US EPA)计划工作。
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