polluting substances 污染物质
polluting gases 污染气体
polluting agents 污染媒介
A: What is causing the water to turn dark?
A：是什么导致水变黑的？
B: They are discharging polluting waste into it.
B：他们正在向其中排放污染废物。
1) 正在造成污染的
2) 具有污染性的
3) 弄脏环境的
1. 污染的；弄脏的
adjective
1. making something dirty, impure, or harmful to the environment.
Synonym: contaminating, fouling