to make an area or substance, usually air, water, or soil, dirty or harmful to people, animals, and plants, especially by adding harmful chemicals
The careless factory polluted the river with chemicals.
Industries must adopt eco-friendly practices to reduce their impact on the environment and avoid polluting.
Disposing of waste improperly can pollute water sources and harm aquatic ecosystems.
Airplanes emit pollutants into the atmosphere, contributing to air pollution.
The company faced fines for polluting the river with chemical runoff.