How is air quality inside the tunnel monitored?
We work hard to make sure our tunnels are safe and meet air quality standards. As part of this, we continuously monitor our tunnels and ventilation stacks and report on the level of carbon monoxide and other air pollutants. A system of jet fans, axial fans, ventilation tunnels and exhaust points manage air within the tunnel.
This and other information relevant to environmental management is set out in the relevant asset Operational Environmental Management Plan (OEMP). Contact us to request a copy of the OEMP.
You can find the latest air quality results below: