50Monitoring airborne contaminant levels

50 Monitoring airborne contaminant levels ensure that air monitoring is carried out to determine the airborne concentration of a substance or mixture at the workplace to which an exposure standard applies if: (a) the person is not certain on reasonable grounds whether or not the airborne concentration of the substance or mixture at the workplace exceeds the relevant exposure standard; or (b) monitoring is necessary to determine whether there is a risk to health. ensure that the results of air monitoring carried out under subregulation (1) are recorded, and kept for 30 years after the date the record is made. ensure that the results of air monitoring carried out under subregulation (1) are readily accessible to persons at the workplace who may be exposed to the substance or mixture. Work Health and Safety (National Uniform Legislation) Regulations 2011 63