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Hazards
of Noise Pollution :-
1. Eardrum is damaged when exposed to very loud and
sudden noises. The hair cells in the inner ear are
chronically damaged. Prolonged exposure to noise of
certain frequency pattern leads to hearing loss.
2. According to Kryter in 1970, noise causes heart
output to decrease with fluctuations in arterial blood
pressure and vaso-constriction of peripheral blood
vessels.
3. Recently, report indicates that blood is thickened
by excessive noise. Eosinophilia, hyperglycaemia,
hypokalaemia and hypoglycaemia are caused by
alteration in the blood due to noise.
4. Noise affects sleep and work performance,
especially of watch-repairers and others where
precision is called for.
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