Air Pollution, addition of harmful substances to the atmosphere
resulting in damage to the environment, human health, and quality of
life. One of many forms of pollution, air pollution occurs inside homes,
schools, and offices; in cities; across continents; and even globally.
Air pollution makes people sick—it causes breathing problems and
promotes cancer—and it harms plants, animals, and the ecosystems in
which they live. Some air pollutants return to Earth in the form of acid
rain and snow, which corrode statues and buildings, damage crops and
forests, and make lakes and streams unsuitable for fish and other plant
and animal life.
