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Tunnel air quality and environmental monitoring

Tunnel air quality and environmental monitoring

We're required to meet rigorous air quality measures for operational tunnels, which are reported to and enforced by the relevant environmental authority in each state.

For most tunnels, we monitor and report on:

  • air quality
  • visibility
  • noise
  • groundwater contaminants and levels

We also provide notifications where any exceedance of acceptable levels is detected.

How we monitor air quality

Using several measuring stations in different locations along our tunnels, we continuously monitor and report on the levels of:

  • Carbon monoxide (CO)
  • Nitrogen Oxide (NO)
  • Nitrogen Dioxide (NO2)
  • Total Nitrogen Oxides (NOx)
  • Particulate matter (EG: Smoke, dust)

These metrics may change based on our agreements with governments, and the relevant environmental authority in each state.

Reports

You can find all environmental and air quality reports available below:

Melbourne

  • Burnley Tunnel
  • Domain Tunnel

Sydney

  • Lane Cove Tunnel
  • NorthConnex

Brisbane

  • AirportLinkM7
  • Clem7
  • Legacy Way
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Related Articles

Glossary of air quality terms How is air released from the tunnel?

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Linkt and Linkt Brisbane are trade marks of Transurban Limited used under licence by Queensland Motorways Management Pty Ltd ABN 86 010 630 921.

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