污染 (wū rǎn): Pollution (Verb) — Meaning & Stroke Order

The wastewater discharged by the factory polluted the river.

This factory does not pollute the environment because it uses clean energy.

The air pollution has worsened, so it's best to wear a mask when going out.

Noise pollution can affect people's sleep quality.

Light pollution not only affects astronomical observations but also disrupts biological rhythms.