Air pollution: alternatives and connections

The act of polluting, or the state of being polluted (in any sense of the verb); defilement; uncleanness; impurity.

pollution of the water in rivers and lakes

rain containing acids that form in the atmosphere when industrial gas emissions (especially sulfur dioxide and nitrogen oxides) combin…

rain containing acids that form in the atmosphere when industrial gas emissions (especially sulfur dioxide and nitrogen oxides) combin…

a substance that contaminates

The act or process of contaminating; pollution; defilement; taint; also, that which contaminates.

The state of being hale, sound, or whole, in body, mind, or soul; especially, the state of being free from physical disease or pain.

air pollution by a mixture of smoke and fog

air pollution by a mixture of smoke and fog

The fluid which descends from the clouds in rain, and which forms rivers, lakes, seas, etc.

Miasma.

Infectious particles or germs floating in the air; air made noxious by the presence of such particles or germs; noxious effluvia; mala…

A mineral water found at Vichy, France. It is essentially an effervescent solution of sodium, calcium, and magnetism carbonates, with…

The act of preserving, guarding, or protecting; the keeping (of a thing) in a safe or entire state; preservation.

medium for radio and television broadcasting; "the program was on the air from 9 til midnight"; "the president used the airwaves to ta…

of or relating to the science of ecology; "ecological research"

of or relating to the science of ecology; "ecological research"

no longer in existence; "the extinction of a species"