Open AccessJournal Article
Noise levels and the sources of noise pollution in Karachi.
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The most noticeable sources of noise pollution in Karachi, are the autorickshaws, trail motor bikes and the fag horns of public transport.Abstract:
The menace of noise is a by-product of civilization and its hazards are well known. Noise levels were measured in Karachi, at different places and at different times of the night and day, using an Amplaid noise meter. The leg for Karachi came to 80 dB (A), the General Noise Index x (G.N.I.) to 460, and the noise pollution level (N.P.L.) to 99 dB (A). These values are significantly higher (P less than 0.01) than the available international data. The sources of noise production were indentified as, the road traffic, human activity, industrial and civil works, mechanical and engineering workshops. The most noticeable sources of noise pollution in Karachi, are the autorickshaws, trail motor bikes and the fag horns of public transport (JPMA 39-62, 1989).read more
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Traffic Noise Pollution in Karachi, Pakistan
Muhammad Wasiullah Khan,Mushtaque Ali Memon,Muhammad Najeebullah Khan,Muhammad Moizullah Khan +3 more
TL;DR: Korean city of Karachi is facing an enormous problem of exceedingly high levels of traffic noise, which is significantly higher than all the available international data.
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Consequences of traffic noise in residents of Karachi, Pakistan.
Imtiaz Ather Siddiqui,Sohaib Nizami,Rida Rouf Chandio,Saad Nizami,Nazish Sikander,Sana Ashraf +5 more
TL;DR: It is established that there exists a concrete direct link between NIHL and duration of exposure to noise above permissible levels and traffic authorities should initiate measures to reduce the noise levels in the city particularly at more noisy places.
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Journal ArticleDOI
Effects of noise on people.
TL;DR: An overview of the effects of noise on people as can be determined from the scientific literature is presented and emphasis is placed on describing and classifying the adverse effects and relating them in a general way to the intensive and temporal properties of audible noise.