Low Toxicity Dusts–Part 2

In my last post I discussed the evidence that suggests that the “trigger values” of 10 and 4 mg/m3 that are widely used as such by many occupational hygienists for “low toxicity dusts” where an official Workplace Exposure Limit (WEL) hasn’t been set, are probably too high to prevent ill health in workers. Despite consideringContinue reading “Low Toxicity Dusts–Part 2”

Low Toxicity Dusts – Part 1

(Image source: BOHS) Regulation 2 of COSHH1 states that any dust when present in the workplace at a concentration in air equal to or greater than 10 mg/m3 of inhalable dust or 4 mg/m3 of respirable (as a time-weighted average over an 8-hour period) is considered to be a substance hazardous to health. If theContinue reading “Low Toxicity Dusts – Part 1”