Western Australian Current Regulations Western Australian Current Regulations (1) The mine operator
of a mine must ensure that no person at the mine is exposed to a substance or
mixture in an airborne concentration that exceeds the exposure standard for
the substance or mixture.
Penalty for this subregulation:
(a) for
an individual, a fine of $7 000;
(b) for
a body corporate, a fine of $35 000.
(2) If there is no
exposure standard for a particular substance or mixture, the mine operator of
a mine must ensure that no person at the mine is exposed to 8‑hour
time‑weighted average atmospheric concentrations of airborne dust
comprising that substance or mixture that exceed —
(a) for
respirable dust — 3.0 mg per cubic metre of air;
(b) for
inhalable dust — 10.0 mg per cubic metre of air.
Penalty for this subregulation:
(a) for
an individual, a fine of $7 000;
(b) for
a body corporate, a fine of $35 000.
(3) The Workplace
Exposure Standards for Airborne Contaminants apply in relation to a
concentration referred to in subregulation (2)(a) or (b) as if that
concentration were an exposure standard referred to in those Standards.
(4) In
subregulation (2) —
8‑hour time‑weighted average has the
same meaning as in the Workplace Exposure Standards for Airborne Contaminants;
inhalable has the same meaning as in the Workplace
Exposure Standards for Airborne Contaminants;
respirable has the same meaning as in the
Workplace Exposure Standards for Airborne Contaminants.