Pollution [r]: Contamination of the natural environment, which usually affects the growth or behaviour of animals and plants, causes health hazards, or leads to other negative consequences. [e]
This disambiguation page lists articles associated with the same or a similar title.
Air pollution[r]: The presence of contaminants or pollutant substances in the air (air pollutants) that interfere with human health or welfare, or produce other harmful environmental effects. [e]