国土资源部的数据显示，2010年，中国57%的水源已经达到重度或中度污染程度。

Data from the resources ministry shows that 57% of the country's water was either seriously or moderately polluted in 2010.

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道路交通噪声中约有17%的城市属中度污染、49%的城市属轻度污染、25%的声环境质量较好。

The road traffic noise has 17% city to be the moderate pollution, 49% city approximately is the mild pollution, 25% sound environment quality is good.

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数据统计分析结果表明湖区的西部与北部为重度污染，南部为中度污染，东部的污染程度介于上述两者之间。

The results of statistical analysis indicate that the west and north areas of the lake are heavily polluted, while it is averagely polluted in the south area.

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