environmental pollutant

例句：

1. 1. Thefactory discharged a large amount of toxicwaste into the environment.
   工厂向环境中排放了大量有毒废物。
2. 2. The government has been workinghard to reduce the levels of environmental pollutants in our country.
   政府一直在努力减少我们国家的环境污染物水平。
3. 3. The pollutionfrom factories is a major cause ofenvironmental contamination.
   工厂的污染是环境污染的主要原因。