RR836 – Perception and understanding of how local exhaust ventilation (LEV) works and how effective it is EXECUTIVE SUMMARY Local Exhaust Ventilation (LEV) is one of the principal methods used to control exposure to airborne contaminants that can cause work-related …
Taken from the first page of this report: Many processes in the construction industry create large quantities of dust; often materials used in construction contain silica. If the dust emissions from these processes are not controlled they can cause exposures …
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