斯坦福 — — 去年一月，一家矿业公司向龙江倾倒镉废料后，中国环保当局勉强避免了近三百万人的饮用水遭受污染。 镉是一种有毒重金属，一般用于电池、油漆、焊接和太阳能电池的制造工艺。
STANFORD – Last January, China’s environmental authorities barely averted the contamination of nearly three million people’s drinking water after a mining company dumped cadmium – a toxic heavy metal used in the manufacture of batteries, paint, solder, and solar cells – into the Longjiang River.