Evaluating hazardous air pollutants in Australia

Area of Science:

• Environmental Science
• Public Health
• Toxicology

Background:

• Hazardous air pollutants (HAPS) monitoring in Australia has been campaign-based, focusing on volatile organic compounds (VOCs), polycyclic aromatic hydrocarbons (PAHs), and heavy metals.
• Limited evaluation of health/environmental effects and toxicological/epidemiological studies exist for monitored HAPS concentrations in Australia.
• Jurisdictions have used varying international benchmarks for HAPS risk assessment, lacking a unified approach.

Purpose of the Study:

• To assess the current state of knowledge regarding HAPS in Australia.
• To identify and prioritize HAPS for further investigation and management.
• To inform the development of national air quality standards and management strategies.

Main Methods:

• Review of existing HAPS monitoring data and control strategies across Australian States and Territories.
• Initiation of the Commonwealth Government's Living Cities-Toxics Program (established 1999) to identify knowledge gaps.
• Development of a national risk assessment methodology by the National Environmental Health (EnHealth) Council.

Main Results:

• Significant efforts are underway to establish national frameworks for HAPS management in Australia.
• A national risk assessment methodology is being developed and applied to create ambient air quality guidelines.
• Projects commenced in 2000 aim to progress national HAPS assessment and strategy development.

Conclusions:

• Australia is moving towards a coordinated national approach for HAPS risk assessment and management.
• The development of national air quality guidelines and standards is a key outcome of recent initiatives.
• Addressing information gaps is crucial for effective HAPS control and safeguarding public health and the environment.