October 28, 2020

The Western Australian Department of Mines, Industry Regulation and Safety has announced changes to the workplace exposure standards for respirable crystalline silica and respirable coal dust. The original media statement release from Hon Bill Johnston MLA is available via this link.

Respirable crystalline silica

The standard (dated 27 October 2020) states that effective immediately employers must ensure that the workplace exposure standard for respirable crystalline silica does not exceed 0.05 milligrams per cubic metre (eight-hour time-weighted average).

Respirable coal dust

Effective from 27 October 2021, employers must ensure that the workplace exposure standard for respirable coal dust does not exceed 1.5 milligrams per cubic metre (eight-hour time-weighted average).

Our Response

GCG has been working with national clients over the past year in anticipation of these workplace exposure standard changes. In Western Australia, we will continue to work closely with our clients around the changes to ensure our services are aligned with the new standards. Should you need any assistance in understanding the impact of the change on your workplace feel free to contact us to discuss workplace exposure standards with one of our occupational hygiene consultants.