他们测试了海拔17500到25400英尺之间的积雪和土壤的样本，发现这些样本的砷和镉都超过了美国环境保护局的标准。
Between 17, 500 and 25, 400 feet in elevation, the snow and soil samples they tested exceeded the U.S. Environmental Protection Agency's tolerance levels for both arsenic and cadmium.
他们测试了海拔17500到25400英尺之间的积雪和土壤的样本，发现这些样本的砷和镉都超过了美国环境保护局的标准。
Between 17, 500 and 25, 400 feet in elevation, the snow and soil samples they tested exceeded the U.S. Environmental Protection Agency's tolerance levels for both arsenic and cadmium.
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