2. OVERVIEW
• What is pollution?
• Air pollution
1. Introduction 2.causes
3. Effects 4. prevention
• Water pollution
1. Introduction 2.causes
3. Effects 4. prevention
• Noise pollution
1. Introduction 2.causes
3. Effects 4.prevention
3. Definition of pollution
• When harmfull substances contaminate the
environment it is called pollution
• Pollution refers to the very bad condition of
environment
4. Air pollution
• The substances which contaminate the air are
called air pollutants
• MAJOR SOURCES OF AIR POLLUTANTS:-
1. INDUSTRIES
2. AUTOMOBILES
3. HIGH PROPORTION OF UNDESIRABLE GASES
5. CAUSES OF AIR POLLUTION
• At low levels air pollutants irrate the eyes and
affect the respiratory tract
• Carbon monoxide from automobiles emissions
can cause headache at low levels andeven
death at higher levels
• Air pollution leads to acid rain and global
warming
6. Effects of air pollution
1. Human health
2. Animal
3. Plants
4. The atompshere
7. Prevention of air pollution
• Air pollution can be reduced by following
ways:-
1. By adopting cleaner tecnologics
2. Say no to crakers
3. Used CNG in cars , bus etc
4. Plants trees
9. Definition of water pollution
• The contaminate of water with undesirable
substances which make air unfit for useage is
termed as water pollution
• Water is a precious natural resource
10. Causes of water pollution
• The substances that pollute water are called
water pollutants
• Types of water pollutants:-
1. sediments
2. Organic wastes
3. Organic compound
4. Inorganic nutrients
5. Inorganic chemicals
11. Effects of water pollution
• High blood pressure
• Sleep disturbance
• Color blindness
• Aquatic animals.
12. Preventing of water pollution
• Rivers should not be used for washing clothes
or bathing animal
• Dams and embankments must be created
• The rivers must not be contaminated
13. Noise pollution
• Noise pollution is defined as unwanted sound
which originates from human activities
• In , India noise pollution is on the increase .
Public meeting , festivals etc... Have all
became louder
14.
15. Causes of noise pollution
• The main sources of noise pollution are as
follows:-
1. Transportation:-aircraft , trains ,cars etc...
2. Traffic jams
3. Special events:-loudspeakears
16. Effects of noise pollution
• Noise pollution can also produce effects like
heart palpitation, headache, etc..
• Noise pollution can cause serious damage to
animals
17.
18. Prevention of noise pollution
• Prevetion of noise
pollution are as follows:-
1. Producing less noise
2. Provide shields and noise-
absorbing materail
3. Earplugs and earphones are
should used less
