Pollution refers to the contamination of the environment by harmful substances. There are several types of pollution including air, water, noise, land, and thermal pollution. Air pollution involves contamination of the atmosphere by gases. Water pollution is the contamination of water bodies like lakes and rivers. Noise pollution disturbs the silent environment through loud noises. Land pollution occurs from dumping of toxic waste on soil. Thermal pollution involves releasing excess heat into the air from industrial activities. Pollution has negative impacts like acidification of water, death of aquatic animals, toxic materials entering the human body, and noise pollution affecting children and older people.

1. Welcome To
Environmental
pollution

2. Introduction
• In the recent times we hear many a concerns
from social activists and groups
regarding pollution crisis.
• The pollution is growing seriously when
human undergoes evolution in technologies.
• In fact there is an immediate requirement to
contain it and minimize for better health and
prevent endanger to valuable species on the
earth.

3. •When harmful substances
contaminate the environment , it is
called Pollution .
•It refers to the very bad condition of
environment in terms of quantity and
quality.

4. • Air Pollution
• Water Pollution
• Noise Pollution
• Land Pollution
• Thermal Pollution

5. Air Pollution:-This is a contamination of natural air with dangerous gases. This is a
major contributor to environmental pollution. Presence of lot of green trees and
plants is one of the option to minimize this pollution.
Water Pollution:-Water pollution is the contamination of water bodies (e.g. lakes,
rivers, oceans, aquifers and groundwater), very often by human activities.
Noise Pollution:-Noise pollution is a disturbance of silent environment with harsh
loud noises. This is mostly due to automobile sounds, the audio systems used for
fun or public speeches, temples, mosques, churches etc.
Land pollution:- Land pollution is one which occurs due there is excess dumping of
toxic waste. This can be a chemical or other waste material.
Thermal pollution: -This pollution arises due to release of excess heat from thermal
power plants, industries involved in metals molding etc. The heat is released into
the surrounding air rising the temperature of the locality drastically.

6. •Acidification.
•Death of aquatic (water) animals.
•The toxic materials that pollute the soil
can get into the human body directly by
coming into contact with the skin.
•Noise pollution has severe impact
especially on the old people, small children.

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