air quality standards in respect of stone crushers
control of noise from its own sources within the premises so as to maintain ambient air quality standards with respect to noise, less than 75 db (A) during day time and 70 db (A) during night time. Daytime is reckoned in between 6am to 10pm and Night time Quality Policies This document is based on research that UNEP conducted in 2015, in response to Resolution 7 of the UNEA 1.
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