TWC2 urges stop work orders when haze PSI crosses 200
Transient Workers Count Too (TWC2) is gravely concerned that current bad haze conditions will affect the health of workers in many trades, e.g. construction, marine, sanitation, landscaping. TWC2 strongly urges the government to impose a mandatory Stop Work Order when 3-hour average PSI readings, issued hourly, exceed 200, or when PM2.5 readings exceed 50 micrograms