清理美国受污染最严重的核场地汉福德面临挑战,耗资高达6400亿美元。 Cleanup of America's most contaminated nuclear site, Hanford, faces challenges, costing up to $640 billion.

位于华盛顿的汉福德场址是一个586平方英里的地区,是美国受污染最严重的核地点,容纳5 600万加仑放射性废料。 The Hanford Site in Washington, a 586-square-mile area, is America's most contaminated nuclear location, housing 56 million gallons of radioactive waste. 在第二次世界大战期间建立起来,它对原子弹钚生产至关重要。 Established during World War II, it was crucial for plutonium production for atomic bombs. 自90年代以来进行的清理工作预计将耗资多达6 400亿美元,需要数十年时间,而渗漏的储油罐则构成重大挑战。 Cleanup efforts, ongoing since the '90s, are expected to cost up to $640 billion and take decades, with significant challenges posed by leaking storage tanks.