Live air quality data will be available on this page when NorthConnex is open to the public

NorthConnex is a nine kilometre tunnel linking the M1 Pacific Motorway at Wahroonga to the Hills M2 Motorway at West Pennant Hills. NorthConnex is one of the longest and deepest road tunnels in Australia, removing around 5,000 trucks off Pennant Hills Road each day. NorthConnex is operated in accordance with the Conditions of Approval established by the NSW Government and approved by the NSW Minister for Planning.

Current ambient air quality data and updates are available online.