Tuesday, November 07, 2006

Chemicals - exposure limits

Workplace Exposure Limits (WEL) are set for a number of substances hazardous to health. They are the maximum concentrations of an airborne substance, averaged over a reference period, to which employees may be exposed by inhalation.

It is worth noting that even supposedly inert dusts (i.e. non-toxic) can cause health affects if inhaled, and so have a WEL of 10 mg/m3

WELs are listed in EH40/2005

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