管理方法多样，简单的从使用骨炭吸收致癌物，然后把骨碳当作有毒废物扔掉，到高级的使用化学方法把六价铬转化成更良性的结构。

Management tactics range from using bone charcoal to soak up the carcinogen and then dispose of it as toxic waste to chemically transforming hexavalent chromium to a more benign form.

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致癌的铬：世界上很多地方通过铬把兽皮制成皮革，铬在六价化学结构下是强烈致癌物。

CARCINOGENIC chromium: Turning hides into leather in much of the world requires chromium, which in its hexavalent chemical form is a potent carcinogen.

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加利福尼亚提出的健康目标是要将由可能由六价铬引起癌症风险降低到百万分之一。

California's proposed health goal is designed to limit possible cancer risk to just one in a million for those exposed to hexavalent chromium.

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