CHEMISTRY FORM FOUR TOPIC 4: POLLUTION

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 POLLUTION
CHEMISTRY FORM FOUR FULL STUDY NOTES TOPIC 4: POLLUTION

Concept of Pollution

The Concept of Pollution
Explain the concept of pollution
Pollution can also be defined as the introduction of contaminants or pollutants into the natural environment. The environment comprises of living (biotic) and non-living (abiotic) things such as plants, animals, air, land and water.
Contaminants or pollutants are harmful substances introduced into the environment that disturb the balance of nature. Pollution can be in the form of chemical substances or energy such as noise, heat or light.
Human activities play a major role in the pollution of the environment. Humans engage in a myriad of activities such as agriculture, manufacturing, transport, waste disposal, mining etc. All of these activities contribute to environmental pollution in one way or another.
There are three main types of pollution:
  • Terrestrial (land) pollution
  • Aquatic (water) pollution
  • Aerial (air) pollution

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