Occupational Health and Safety Regulations 2017
166Atmospheric monitoring
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166 Atmospheric monitoring
(1) An employer must ensure that atmospheric monitoring is carried out in relation to a hazardous substance supplied to or generated at the employer's workplace if there is an exposure standard for the hazardous substance or any of its ingredients and—
(a) there is uncertainty (based on reasonable grounds) as to whether the exposure standard is or may be exceeded; or
(b) atmospheric monitoring is necessary to determine whether there is a risk to health.
(2) Subregulation (1) does not apply to a hazardous substance if health monitoring is required for the substance under regulation 169 and the health monitoring includes biological monitoring.