The decline in environmental quality as a consequence of pollution is evidenced by loss of vegetation, biological diversity, excessive amounts of harmful chemicals in the ambient atmosphere and in food grains, and growing risks of environmental accidents and threats to life support systems.

What happens when the environment is polluted?

1. Effects of Air Pollution. High levels of air pollution can cause an increased risk of heart attack, wheezing, coughing, and breathing problems, and irritation of the eyes, nose, and throat. ... Air pollution causes a number of environmental effects in addition to the effects on humans and animals.

What is environmental environment pollution?

Environmental pollution refers to the injection of harmful substances into the environment which cause change in the physical, chemical and biological characteristics of air, land and water and can harm the life of humans and other species.