Maximum permissible noise level for road traffic near residential areas is
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horns of vehicles is the reason
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As per the prescribed limits, sound levels for domestic areas is 55 and 45 decibels which are applicable for day and the night sequentially, for stillness zones the level is 50 and 40 decibels, severally.
In common, noises beyond 85 are dangerous, which depends on how high and how frequently you are revealed to them and either you carry hearing security, such as earmuffs.
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