An instrument known as sound level or noise-level meter can be used to measure noise levels at any particular point in the mill There are different types of noise measuring instrument, which should be selected according to the type of noise and the type of exposure being measured Assessment and Control of Sawmill Noise
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Be aware that if noise levels are high enough, rotation could increase the chances of hearing loss in more workers If there is a regular noise level of 90 dB, for example, a healthy worker in the area can rotate into an area with a 50-dB noise level without a substantial increase in risk of hearing loss
Common environmental noise levels How loud is too loud? Continued exposure to noise above 85 dBA (adjusted decibels) over time will cause hearing loss The volume (dBA) and the length of exposure to the sound will tell you how harmful the noise is In general, the louder the noise, the less time required before hearing loss will occur .
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(2) The maximum noise levels of continuous or intermittent noise from a factory or a workshop, to which person may be exposed shall not exceed the level specified in Column 1 of Part II of the First Schedule, for the time specified in Columns 2 and 3 of that Part (3) The maximum noise level from impact or impulsive noise to which a person may be
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thermal conditions, every new bar entering the mill creates an impact, , and sometimes there are really severe rolling accidents, due to faults by operators, weak rolled materials with internal defects, or because of other problems in a mill such as a power cut, mechanical problems of transportation or in the water cooling system
Further for better regulation for noise pollution There are The Noise Pollution ( Regulation and Control ) Rules, 2000 – in order to curb the growing problem of noise pollution the government of India has enacted the noise pollution rules 2000 that includes the following main provisions:-
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Noise or sound level monitoring or measurement is a process to measure magnitude of Noise in industries and residential area Data collected from Noise level monitoring & Testing helps us to understand trends and action can be taken to reduce noise pollution Noise pollution is Low or High frequency sound that can cause/harm the activity of human life
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(over 4 m illion DALYs) is attribu ted to occupational noise, ranging from 7% to 21% in the various subregions The effects of th e exposure to occupational noise are larger for males than females in all subregions and higher in the developing regions Conclusions Occupational noise is a significant cause of adult-onset hearing loss
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Noise is therefore a common occupational hazard in a large number of workplaces such as the iron and steel industry, foundries, saw mills, textile mills, airports and aircraft maintenance shops, crushing mills, among many others In many countries, noise-induced hearing loss is one of the most prevalent occupational diseas
Acoustics — Noise emitted by machinery and equipment — Measurement of emission sound pressure levels at a work station and at other specified positions — Engineering method in an essentially free field over a reflecting plane — Technical Corrigendum 1
that reduces noise and dust is employed, the minimum distance may be further reduced to 150m with stringent control measures such as enclosure of crushers, classifiers, screens and other noise/dust producing units with 40 cm thick solid wall (not hollow ), false roofing and dust extraction system 3
Noise pollution is the pollution caused by the noise due to the increased level of unwanted sound in the environment It is a big potential hazard to health and causes a huge level of communication problems A high level of noise brings irritation in the behavior of many people especially diseased, old people and pregnant women
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In any work environment, there can be many reasons to keep sound levels within a reasonable range Sound levels above this range are perceived as "noise" Noise can distract the workforce .
The true peak noise levels in the case of impulsive noise may be appreciably higher than those given by simple sound level meter readings For satisfactory analysis of factory noise, it is necessary to take into account the nature of the noise and determine the true noise levels and their significance accordingly
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Nov 21, 2018· The textile industry faces many problems: Poor working conditions in developing countries, high noise levels in garment factories, exposure to toxic chemicals and more In addition, they're not recycling our fabric as they should be, creating an environmental problem as well
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