About Pollution. Types of Pollution. Air, Water and Land Pollution. By Jahanvi.

1. CLASS-5
BY-JAHANVI
POLLUTION
Land,

2. Pollution
Pollution is the introduction of contaminants into the natural environment
that cause adverse change. Pollution can take the form of chemical
substances or energy, such as noise, heat, or light. Pollutants, the
components of pollution, can be either foreign substances/energies or
naturally occurring contaminants.
Pollution

3. Types of Pollution
• Air Pollution
• Water Pollution
• Land or Soil Pollution
• Noise Pollution

4. Air Pollution
Air pollution is a mixture of solid particles and gases in the air. Car
emissions, chemicals from factories, dust, pollen and mold spores may be
suspended as particles. Ozone, a gas, is a major part of air pollution in cities.
When ozone forms air pollution, it's also called smog. Some air pollutants are
poisonous.

5. Water Pollution
Water pollution is the release of substances into bodies of water that makes water
unsafe for human use and disrupts aquatic ecosystems. Water pollution can be
caused by a plethora of different contaminants, including toxic waste, petroleum, and
disease-causing microorganisms.

6. Land or Soil Pollution
Soil contamination or soil pollution as a part of land degradation is caused by the
presence of xenobiotic (human-made) chemicals or other alteration in the natural soil
environment. It is typically caused by industrial activity, agricultural chemicals or improper
disposal of waste.

7. Noise Pollution
Noise pollution is an invisible danger. It cannot be seen, but it is present nonetheless, both
on land and under the sea. Noise pollution is considered to be any unwanted or
disturbing sound that affects the health and well-being of humans and other organisms.
Sound is measured in decibels.