The document discusses noise pollution, its sources and health effects. It defines noise pollution as unwanted sound that interferes with daily life. Transportation systems are a main source of noise pollution in urban areas. Noise pollution can cause health issues like high blood pressure, stress, and hearing loss. The document provides solutions to noise pollution such as planting trees, regular maintenance of machines, and soundproofing buildings.

1. N O i S E
P O L L U T i O N

2. Sound that is unwanted or disrupts one’s quality of life is called as
noise. When there is lot of noise in the environment, it is termedas
noise pollution.
Sound becomesunwanted whenit interferes with normal activities,
or disrupts or diminishes one’s quality of life.
N O i S E
P OL L U T i O N

3. Health Effects
According to the USEPA, there are direct
links betweennoise and health. Also, noise
pollution adversely affects thelives of
millions of people.
High blood pressure,stress related illness,
sleep disruption, hearing loss, and
productivity loss are the problems related to
noise pollution.
It can also cause memory loss, severe
depression,and panic attacks.

4. Sources of Noise Pollution
 Transportationsystemsare themain sourceofnoise
pollution in urbanareas.
 Constructionofbuildings, highways, and streetscause a
lot ofnoise, due tothe usageofair compressors,
bulldozers, loaders, dump trucks,and pavement
breakers.
 Industrial noisealso adds tothe already unfavorable
state of noise pollution.
 Loud speakers, plumbing, boilers, generators,air
conditioners, fans, and vacuumcleanersadd to the
existing noise pollution.

5. SolutionsforNoise Pollution
 Planting bushesand trees in and around sound generating
sources is an effective solution for noise pollution.
 Regular servicing and tuning of automobiles can
effectively reduce the noise pollution.
 Buildings can be designed with suitable noise absorbing
material for the walls, windows, and ceilings.
 Workers should be provided withequipmentssuchas ear
plugs and earmuffs for hearing protection.

6. Solutions for
Noise Pollution
 Similar to automobiles, lubrication ofthemachineryand servicing should
be done to minimize noise generation.
 Soundproof doors and windows can beinstalled toblock unwanted noise
from outside.
 Regulations should be imposed to restrictthe usage of play loudspeakers in
crowded areasand public places.
 Factories and industries shouldbe located farfrom theresidential areas.

7. THEPHYSiCS OFHEARiNG

8.  Hearing is a complex process that involves
many parts of the ear working together to
convert sound waves into information that
the brain understands and interprets as
sound.