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2. ☺ GOING TO COVER ☺
1. DEFINITION.
2. CAUSES.
3. EFFECTS.
(PHYSIOLOGICAL)
(PSYCHOLOGICAL)
1. CONCLUSION.

3. ☺DEFINITION☺
● Noise is unwanted
sound. A sound
which has
unpleasant effects
and discomfort to
ears is called noise
also known as
environmental
noise or sound
pollution.
● Noise pollution is
defined as an
excessive
amount of noise or
an unpleasant
sound that causes
a temporary
disruption in the
natural balance.

4. ☺CAUSES☺
1. Traffic noiseTraffic noise accounts for most polluting
noise in cities.
For example, a car horn produces 90 DB and a bus
produces 100 dB. People start feeling pain and
discomfort at the noise level of 120 decibels.

5. 2. Air traffic noise There are fewer aircraft flying
over cities than there are cars on the roads.
But the impact is greater, A single aircraft produce
130DB of sound.
http://www.airportnoiselaw.org/dblevels.html

6. 3. Industry and Construction sites Building and
road and pavement resurfacing works are very
noisy.
For example, a pneumatic drill produces 110 dB.

7. 4. Catering and night life Bars restaurants
and terraces that spill outside can produce more
than 100 dB.

8. 5. Noise made by animals can go unnoticed.
But a howling or barking dog, for example, can
produce around 60-80 dB.

9. ● Exposure to high levels of noise can cause
permanent hearing loss. Neither surgery nor
a hearing aid can help correct this type of
hearing loss.
● Loud noise can create physical and
psychological stress, reduce productivity,
interfere with communication and
concentration
☺EFFECTS☺

10. ☺EFFECTS☺
● 1. Psychological.
● 2. Physiological.

11. ☺PHYSIOLOGICA
L EFFECTS☺
● Ischemic heart disease.
● Annoyance.
● Sleep disturbance.
● Hearing impairment.
● Tinnitus.
● Hypertension.
● Changes in the immune
system and birth defects.

12. ☺PSYCHOLOGICAL
EFFECTS☺
● Psychiatric disorders.
● Depression.
● Anxiety.
● Personality changes.
● Violent reactions.

13. ☺AVOID NOISE POLLUTION☺

14. ☺AVOID NOISE
POLLUTION☺
● Turn off appliances when not in use.
● Shut the Door when using noisy
Machines.
● Use Earplugs rather than speakers.
because it can be Noise some one.
● Lower the volume.
● Or Stay away from Noisy area.
● Go Green by planning trees even
trees can reduce 5 to 6DB of sound.
● Use Proper Lubrication in Machines.

15. ☺SAVE THE
EARTH☺