-rucha kedar(11) neha pagar(18) rutika patil(20) srishti agarwal(1)
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-Rucha Kedar(11)
Neha Pagar(18)
Rutika Patil(20)
Srishti Agarwal(1)
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A decible is the standard for measurement of noise.
The zero on a decibel scale is at the threshold of hearing the lowest sound pressure that can be heard.
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• 20db is whisper• 40db noise in quiet
office• 60db is normal
conversation• 80db is level at
which sound becomes physially painful.
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• Noise pollution is human created noise harmful to welfare and health.
• The noise may cause annoyance,tension in muscles,nervous irritability and strain.
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• Road Traffic noise
• Air-craft noise
• Noise from railroads
• Construction noise
• Noise in Industry
• Noise in buildings
• Noise from consumer products
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SOURCES OF NOISE POLLUTION
• The noise pollution has two sources, i.e. industrial and non- industrial.
• The industrial source includes the noise from various industries and big machines.
• Non- industrial source of noise includes the noise created by transport/vehicular traffic and the neighborhood.
• Noise generated by various noise pollution can also be divided in the categories , namely, natural and manmade.
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Effects of noise pollution
• It decreases the effeciency of man• Lack of concentration• Fatigue• Effect on vegetation• Effect on animal• Effect on property• It causes blood pressure• Temporary deafness
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Effects of Noise Pollution
• Excessive noise may cause permanent loss of hearing.
• There are chronic effects of noise pollution if a person is exposed to high noise level for long duration.
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• Transportation vehicles are the worst offenders with aircraft,buses,roadrail stock,automobiles,motorcycles,trucks producing excessive noise.
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• There is no doubt that noise pollution is equally hazardous to man kind as any other form of pollution.
• Thus a combined effort must be made by all of us to stop NOISE POLLUTION!!