Mumbai noisiest, Delhi is 4th |
Delhi in India may be the dirtiest city in terms of high air pollution but the dubious distinction of being the noisiest city goes to Mumbai which reported the maximum violation of safe noise levels for consistently longer periods during 2011-14.Delhi, in fact, was at number four as Lucknow and Hyderabad turned out to be noisier than the capital which has an advantage of relatively higher green cover and road side plantations. Though the most common source of noise pollution is motor vehicles, the other sources like generator sets, office machines, aircraft, industrial and construction activities too substantially contribute to increasing the noise level in the cities.The observation came from the Central Pollution Control Board (CPCB) which in its latest report also noted how the noise pollution (noise level beyond the prescribed limits of 55 dB during day and 45 dB during night) can cause aggression, hypertension, hearing loss, tinnitus and sleep disturbance.
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