来自pollute,污染。

1. Since 1979 China has collected 24.7 billion yuan in pollutant discharge fees.

1979年以来,全国共征收排污费247亿元.

2. Knowledge of any given exposure to air pollutant mixtures is largely inadequate.

关于任何特定的暴露于空气污染混合物中的知识,都是极为欠缺的.

3. We will display all descriptive and identifying date for each pollutant source.

我们列出每个污染源的所有说明性和标准性的数据.

4. Carbon dioxide may not be a typical air pollutant.

二氧化碳可能不是一种典型的污染物.

5. Coal itself is a heavy pollutant.

煤本身就是一种严重的污染物.