大气污染物

atmospheric contaminant的用法和样例：

例句

Exposure to this atmospheric pollutant usually occurs in industrial situations and in the chemical industries.对这种大气污染物的暴露，通常发生在工业区和化学工业中。
Units that discharge atmospheric pollutants in areas where the local discharge standards have been established shall observe such local standards.凡是向已有地方排放标准的区域排放大气污染物的，应当执行地方排放标准。

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