Pollution is the introduction of substances into the environment that have harmful or poisonous effects. It has various causes including industrialization, population growth, and improper waste disposal. The main types of pollution are air, water, soil, noise, radioactive, thermal, light, and marine pollution. Each type degrades the environment and harms human health in different ways such as respiratory illness, global warming, and toxic dust. Efforts are needed to control pollution at its source and educate the public on environmental protection.

1. WHAT IS POLLUTION?
•The presence in or
introduction into the
environment of a substance
which has harmful or
poisonous effects.
•Pollution is the degradation
of Earth's land surfaces often
caused by human activities
and their misuse of land
resources.
IT’S CAUSES -
•Industrialization
•Population Growth
•Globalization
•Deforestation
•Improper Waste Disposal
IT’S EFFECTS-
•Environment Degradation
•Human Health
•Global Warming
•Infertile Land
•Ozone Layer Depletion

2. 1. Air Pollution
2. Noise Pollution
3. Soil Pollution
4. Water Pollution
5. Radioactive Pollution
6. Thermal/Heat
Pollution
7. Light Pollution

3.  Soil Pollution occurs due to
incorporation of unwanted chemicals
in the soil due to human activities.
• In a general sense, soil pollution
definition is the presence of toxic
chemicals (pollutants or contaminants)
in soil in high enough concentrations to
be of risk to human health and/or
ecosystem.

4. - Accidental spills and
leaks of gasoline and
diesel
- Mining activities
- Agricultural activities
- Transportation
activities
- Dumping of chemicals
- Storage of wastes in
landfills
- Acid Rain
-Health of Humans
-Decreased Growth of
Plants
-Decreased Soil Fertility
-Toxic Dust
- Changes in Soil
Structure

5. -Water pollution is the
Contamination
of water bodies
(e.g. lakes, rivers, oceans,
aquifers and groundwater.
-This form of environmental
degradation occurs
when pollutants are directly or
indirectly discharged into water
bodies without
Adequate treatment to remove
harmful compounds.

6. •Septic Tanks
•Sewage and Waste Water
•Ocean and marine dumping
•Underground storage and
tube leakages
•Industrial Waste
•Livestock animals
•Devastating to people and
animals, fish, and birds.
•Unsuitable for drinking,
recreation, agriculture, and
industry.
•Destroys water life.

7.  Air pollution is the
introduction
of particulates, biological
molecules, or other
harmful materials into
the Earth's atmosphere,
possibly causing disease,
death to humans, damage
to other living organisms
such as food crops, or
the natural or built
environment.
 Air pollution may come
from anthropogenic or
natural sources.

8. 1.Burning of Fossil
Fuels
2. Agricultural
Activities
3. Exhaust from
factories and
industries
4. Mining operations
5. Indoor air
pollution:
1. Respiratory and
heart problems
2. Global warming
3. Acid Rain
4. Eutrophication
5. Effect on Wildlife
6. Depletion of Ozone
layer

9. A form and level of
Environmental sound that is
generally Considered likely to
annoy, distract or
even harm other people is
Called noise pollution.
The word noise originated from
the Latin word ‘nausea’ meaning
seasickness. Noise is any
unwanted sound that disrupts
environmental equilibrium. Noise
is measured in decibels.

10. 1. Industrialization
2. Poor Urban
Planning
3. Social Events
4. Transportation
5. Construction
Activities
6. Household Chores
1.Hearing Problems
2. Health Issues
3. Sleeping Disorders
4. Cardiovascular
Issues
5. Trouble
Communicating
6. Effect on Wildlife

11.  Thermal pollution is the
degradation of water
quality by any process that
changes ambient water
temperature.
 When water used as a
coolant is returned to the
natural environment at a
higher temperature, the
change in temperature
decreases oxygen supply
and affects
ecosystem composition.
Potrero generating station
discharged heated water
into San Francisco Bay. The
plant was closed in 2011.

12. 1. Water as Cooling
Agent in Power,
Manufacturing and
Industrial plants
2. Soil Erosion
3. Deforestation
4. Runoff from Paved
Surfaces
5. Natural Causes
1.Decrease in Dissolved
Oxygen Levels
2. Increase in Toxins
3. Loss of Biodiversity
4. Ecological Impact
5.Affects Reproductive
Systems
6. Increases Metabolic
Rate of organisms
7. Migration

13.  Marine
pollution occurs when
harmful, or potentially
harmful, effects result
from the entry into the
ocean of
chemicals,particles, ind
ustrial, agricultural and
residential waste,
noise, or the spread
of invasive organisms.
 Also called Ocean
Pollution.

14. 1.Sewage
2. Toxic Chemicals
From Industries
3. Land Runoff
4. Large Scale Oil
Spills
5. Ocean Mining
6. Littering
1. Effect of Toxic Wastes on
Marine Animals
2. Disruption to the Cycle
of Coral Reefs
3. Depletes Oxygen
Content in Water
4. Failure in the
Reproductive System of
Sea Animals
5. Effect on Food Chain
6. Affects Human Health

15. By implementing
effective control
measures for pollution,
we hope to reduce the
pollutants produced at
source and maintain
achievements in nature
conservation and
greening in the city.
More importantly, by
educating the citizens
for good awareness in
environmental
protection, consumption
motives.
Reduce
Recycle
Reuse