Air quality

Watch Sydney's Air Quality-Tunnel design and ventilation outlets

Above world standard

Sydney’s air quality is good by world standards, according to international comparisons made by the World Health Organisation who set air quality guidelines.

A connected Sydney

The Sydney's motorway network includes over 160 kilometres of surface roads, tunnels, bridges and underpasses. Six major tunnels help relieve surface congestion and ventilation systems ensure that tunnel emissions do not have a measurable impact on air quality.

More to the story

While motor vehicles in Sydney contribute to emissions, they only make up around 13 per cent, as compared to wood fires which contribute around 50 per cent of Sydney’s total particle emissions.

Looking for live data?

Check out the Department of Planning, Industry and Environment webpage for live air quality data for NSW.

Download air quality factsheet (PDF)

See how Sydney compares to the world

We recognise that good air quality is important for everyone. As our population continues to grow, we are committed to maintaining high air quality standards. We will achieve this through effective management of our transport systems and by incorporating new technology and design into project planning and delivery.

Australia’s air quality is good by world standards*, according to international comparisons made by the World Health Organisation who set air quality guidelines. Find out how our air quality levels (measured in PM2.5) compare to other major cities and centres around Australia and the world by exploring the data and key cities via:

Bar chart Interactive 2D map Interactive 3D map

* Source: World Health Organisation, see site footer for full disclaimers and details. This excludes exceptional air quality events such as bushfires.

Air quality in Sydney and internationally

Source: World Health Organisation, see site footer for full disclaimers and details. This excludes exceptional air quality events such as bushfires.

Tips: Click a 2D circle or 3D bar to compare that city's emissions levels to Sydney. Change the data style and toggle the cities shown using the controls in the top left of map.

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