NOISE POLLUTION

BY: R A C H E L JA C O B

Z O O - 1 5 - 0 5 - 1 0

POLLUTION The introduction into the environment, by people, of

substances or energy l iable to cause harm to l iving creatures or

ecological systems.

NOISE POLLUTION Noise pollution is the disturbing or excessive noise that

may harm the activity or balance of human or animal life.

• 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 termed as

noise pollution.

• Sound becomes undesirable when it disturbs the normal activities such

as working, sleeping, and during conversations.

• It is an underrated environmental problem because of the fact that we

can’t see, smell, or taste it.

• World Health Organization stated that “Noise must be recognized as a

major threat to human well-being”

Classifications

• There are two major classes of noise pollution

–Community noise or environmental noise

• Non industrial noise pollution

– Air craft noise

– Roadway noise pollution

– Under water noise pollution

–Occupational noise or industrial noise pollution

COMMUNITY NOISE

Community noise (also called environmental noise, residential noise or

domestic noise) is defined as noise emitted from all sources, except at

the industrial workplace.

Main sources of community noise include road, rail and air traffic,

construction and public work, and the neighborhood.

Typical neighborhood noise comes from live or recorded music; from

sporting events including motor sports; from playgrounds and car

parks; and from domestic animals such as barking dogs.

AIR CRAFT NOISE

Noise from planes flying over residential areas impairs people's

ability to work, learn, sleep and consequently results in lowered

property values in affected areas.

As passenger volume increases and new and larger airports are

built, noise is becoming even more of a concern.

Blended wing design

ROAD WAY NOISE

Roadway noise is the collective sound energy emanating from motor

vehicles.

It contributes more to environmental noise exposure than any other noise

source, and is constituted chiefly of engine, tire, aerodynamic and

braking elements.

In other Western countries as well as lesser developed countries, roadway

noise is expected to contribute a proportionately large share of the total

societal noise pollution.

Under water Noise Pollution(UNP)

UNP is intense human-generated noise in the marine

environment.

It is caused by use of explosives, oceanographic experiments,

geophysical research, underwater construction, ship traffic, intense

active sonars and air guns used for seismic surveys for oil and

related activities.

Occupational Noise

The many and varied sources of noise is industrial machinery and

processes include: rotors, gears, turbulent fluid flow, impact

processes, electrical machines, internal combustion engines,

pneumatic equipment, drilling, crushing, blasting, pumps and

compressors.

Furthermore, the emitted sounds are reflected from floors, ceiling

and equipment

EFFECTS OF NOISE POLLUTION

Effect of Noise Pollution

On

ENVIORMENT

On ANIMALS

On HUMAN HEALTH

EFFECTS ON HUMANS

• Hearing Impairment

• Interference with Spoken Communication

• Decrease in Efficiency

• Lack of Concentration

• Fatigue

• Sleep Disturbances

• Cardiovascular Disturbances

• Disturbance in Mental Health

• Impaired Task Performance

• Negative Social Behavior and Annoyance reactions

• Abortion

• Abnormal Fetus

• Temporary or Permanent Deafness

Diseases Caused by Noise

Pollution

• High Blood Pressure

• Heart Attack

• Cancer

• Asthma

• Coughing, wheezing

• Deafness

• Annoyance

• Stress

• Anxiety

• Reduced lung development

• Bronchitis

• Insomnia

• Arteriosclerosis

EFEECTS ON ANIMALS • Damages Nervous system

• Altering Prey/predator detection

• Creates problems in Navigation

• They become Dangerous and Aggressive

• Raise Metabolism

• Reduction of usable Habitat

• Death of Certain Species

• Genetic and Evolutionary Problems

• Hormone imbalance

• Chronic Stress

• Panic and Escape Behavior

• Abandonment of Offspring

• Injury

• Breakage of Earth Barrier

• Poor Quality of Crops

• Damages Buildings, bridges and

Monuments

• Weakens the Edifice of Building

• Noise pollution from ship engines and sonar systems make it

difficult for marine mammals like whales and dolphins, and

prevent it from communicating, finding food, and avoiding

hazards.

• If construction sites, freeways, or outdoor concerts are near, it will

also interrupt the natural habitat.

• Animals may become afraid of noise over time and flee in terror if

a loud sound happens. In the process, they may get trampled.

• Excessive noise has the ability to raise an animal’s heart beat

speed, and even harms an animal’s metabolism.

• Animals rely on sound for prey detection and communication, so

if noise is present, animals will not be able to find food or

communicate because when they emit sound to prey, the only

thing they hear in return is human-made noise.

SOLUTIONS

CONTROL OF NOISE POLLUTION

• Control at Source

• Control in the Transmission Path

• Using Protective Equipment

CONTROL AT THE SOURCE

• Reducing the Noise Levels from Domestic Sectors

• Maintenance of Automobiles

• Use of Economic instruments

• Control over Vibrations

• Low Voice Speaking

• Prohibition on Usage of loudspeakers

• Selection of Machinery

• Maintenance of Machines

Control in the

Transmission Path

• Installation of Barriers

• Installation of Panels and Enclosures

• Green Belt development

USING PROTECTION EQUIPMENT

• Job Rotation

• Exposure Reduction

• Hearing Protection

• Protection at the Receiver End

MORE STRATEGIES

• Sound insulation

• Sound Absorption

• Vibration Damping

• Vibration Isolation

• Urban Planning

• Public Education and Awareness