就在这个星期，我们宣布将开始统计全国的温室气体污染排放量，这是有史以来的第一次。
And just this week, we announced that for the first time ever, we'll begin tracking how much greenhouse gas pollution is being emitted throughout the country.
据环保局统计，汞的主要来源是占国内人为排汞量40%的燃煤电厂污染物。
The leading source of mercury is pollution from coal-burning power plants, which accounts for 40% of all domestic anthropogenic mercury, according to the EPA.
官方的统计数字显示，大约30%的中国河水由于污染严重已不适合工业或农业生产使用。
About 30% of China's rivers are so dirty they aren't fit for industrial or agricultural use, according to official statistics.
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