2. Pollution
Pollution is the introduction of harmful
materials into the environment. These
harmful materials are called pollutants.
Pollutants can be natural, such as volcanic
ash. They can also be created by human
activity, such as trash or runoff produced
by factories. Pollutants damage the
quality of air, water, and land
3. Types of pollution
The three major types of pollution
are
air pollution
water pollution
land 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. Causes of air pollution
Air pollution is caused by solid and liquid particles and certain
gases that are suspended in the air. These particles and gases
can come from car and truck exhaust, factories, dust, pollen,
mold spores, volcanoes and wildfires.
6. Water pollution
Water pollution occurs when harmful
substances—often chemicals or
microorganisms—contaminate a stream, river,
lake, ocean, aquifer, or other body of water,
degrading water quality and rendering it toxic
to humans or the environment.
7. Causes of water pollution
Various Causes of Water Pollution
Industrial Waste
Sewage and Wastewater
Mining Activities
Marine Dumping
Accidental Oil Leakage
The burning of fossil fuels
Chemical fertilizers and pesticides
Leakage From Sewer Lines
8. Land pollution
Land pollution is a result of dumping
garbage, waste, and other toxins
making the land contaminated or
polluted. The source of land pollution
comes from the human element such as
littering, and waste that is washed
ashore from boats, oil rigs, and sewage
outlets.
9. Causes of land pollution
Image result for causes of land pollution
Various Causes of Land Pollution
Deforestation and Soil Erosion. Deforestation carried out to
create drylands is one of the major concerns Agricultural
Activities
Mining Activities
Overcrowded Landfills
Industrialization
Urbanization
Construction Activities
Nuclear Waste
10. effects of pollution
Pollution may muddy landscapes, poison soils
and waterways, or kill plants and animals.
Humans are also regularly harmed by
pollution. Long-term exposure to air pollution,
for example, can lead to chronic respiratory
disease, lung cancer and other diseases
11. How to reduce pollution
On Days when High Particle Levels are
Expected, Take these Extra Steps to
Reduce Pollution:
Reduce the number of trips you take in
your car.
Reduce or eliminate fireplace and wood
stove use.
Avoid burning leaves, trash, and other
materials.
Avoid using gas-powered lawn and
garden equipment.
