High Pressure Noise Level
One incident I had to solve was people had to work in enclosed areas where the noise level was dB(A) 88 or above all the time. These workers had to work 12 hours per day, six days per week. Without using the earmuffs or earplugs, people would start to lose their hearing capability within a few weeks. It had been confirmed that a decibel level of 90 or more continuously for 8 hours would damage the hearing system slightly on a permanent basis. The decibel level from live rock music is 120, the same from power tools like those use to hack concrete when three hackers are operating at the same time. For chain saw, it is 110 and for normal office conversation, 60.
When they found out it was always too late. All workers who have to work in high Sound Pressure Level area, dB(A) 85 and above, must be briefed on the hazards of noise exposure. I also came across workers in these areas not willing to put on the earmuffs provided, giving the excuse the earmuffs would make them sweat more profusely. They also cited that they worked for many weeks there and non-of them had hearing problem.
Noise level must be maintained below 65 dBA during the day time. The use of noise buffers such as hoarding must be encouraged. Noise level must not exceed 55 dBA during night time if the workers are sleeping near the construction yards.
If a worker must be exposed to a location where the noise level is 80 dBA or higher, for more than one hour, protective earmuffs must be worn. A sound level of 120 or more could cause a fatal heart attack, for example, myocardial infarction.
Excessive noise may also disrupt the growth and development of premature infants, raise blood pressure, loss of sleep, and changes in brain chemistry. Noise can lead to social hardship , reduced productivity, decrease performance in learning, absenteeism in the workplace and school, increase drug use and accidents,
When they found out it was always too late. All workers who have to work in high Sound Pressure Level area, dB(A) 85 and above, must be briefed on the hazards of noise exposure. I also came across workers in these areas not willing to put on the earmuffs provided, giving the excuse the earmuffs would make them sweat more profusely. They also cited that they worked for many weeks there and non-of them had hearing problem.
Noise level must be maintained below 65 dBA during the day time. The use of noise buffers such as hoarding must be encouraged. Noise level must not exceed 55 dBA during night time if the workers are sleeping near the construction yards.
If a worker must be exposed to a location where the noise level is 80 dBA or higher, for more than one hour, protective earmuffs must be worn. A sound level of 120 or more could cause a fatal heart attack, for example, myocardial infarction.
Excessive noise may also disrupt the growth and development of premature infants, raise blood pressure, loss of sleep, and changes in brain chemistry. Noise can lead to social hardship , reduced productivity, decrease performance in learning, absenteeism in the workplace and school, increase drug use and accidents,
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