The result shows that the water body pollution is serious in this section. The type of pollutant is mainly the organic pollutant.

结果表明，抚河抚州市段水体污染严重，污染物类型主要为有机污染物。

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Hence vehicle occupants are exposed to air with pollutant concentrations 2-4 times higher than that breathed by vehicle occupants, depending on the type of pollutant.

因此车辆上的乘客所面对的空气污染密度比骑车人要高2 - 4倍，污染物不同，程度也不一样。

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Heavy metal is a common type of pollutant during accidental pollutions. In recent years, the frequency and intensity of accidental heavy metal pollution events tends to increase in China.

重金属是突发污染事件中比较常见的污染物，近年来我国突发重金属污染事件发生强度和频率的趋势增大。

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Another issue is that a second type of pollutant, aerosols such as the minute sulphate particles that form when sulphurous fuel is burned, promote the formation of clouds.

ECONOMIST: Changing science