New rules on dust exposure limits have drawn criticism from farmers

From December 1, new regulations on the occupational exposure to dust, chemicals, and gases developed by Safe Work Australia come into force, although their implementation and enforcement will be carried out at the state level. Industry associations are appealing to the authorities with a call to amend or postpone the introduction of these requirements.

As a grain industry representative notes, the new standards make the use of phosphine almost impossible, which is used for the plant protection of stored and exported grain against pests. At the same time, the Australian grain industry is valued at $33 billion, and importing countries may completely reject consignments if pests are detected due to biosecurity laws. In addition, the exposure limits for grain dust have been more than halved for such crops as oats, wheat, and barley. The industry faces difficulties in finding information on dust measurement methods and compliance with regulations, and therefore it is proposed to postpone the implementation of the new standards for three years to conduct additional research.

At the same time, Safe Work Australia emphasizes that the revised figures reflect current scientific data and recommendations from independent experts to protect workers. The agency conducted public consultations in 2019–2021, after which the new limits were agreed upon by the ministers of health and occupational safety and published in April 2024. The organization notes that conformity assessment is carried out through personal air monitoring of workers, and is currently working with industry stakeholders and government agencies to ensure a unified understanding of the requirements.

In August, WorkSafe Victoria already announced a delay in the exposure limits for 15 airborne pollutants, including phosphine, until December 1, 2029. Grain industry representatives also held a meeting with Western Australia's Agriculture Minister Jackie Jarvis, expressing concern over compliance with the new rules.

The occupational exposure limits system covers more than 600 substances, tightening requirements for approximately 250 of them. Overall, the selection of standards determines the maximum level of pollutants in the air that is safe for the health of most people.