Transport for London’s (TfL’s) network of diffusion tubes and continuous monitoring stations to monitor the air quality impacts of the Silvertown Tunnel are generally being installed at roadside locations where pollutant concentrations are expected to be at their highest. This reflects the fact that TfL does not expect there to be any significant air quality impacts at any schools as a result of the scheme. This is explained in the Environmental Statement that was certified as part of the Development Consent Order (DCO).
Of the 38 air quality monitoring sites that have been installed to date to specifically monitor air quality in respect of the Silvertown Tunnel, 18 sites are within 400 metres of schools. The closest schools to these monitoring sites include Woolmore Primary School, Deptford Park Primary School, Britannia Village Primary School and St Mary Magdalene Primary School.
In addition to this, data will be drawn from existing air quality monitors operated by the London Borough of Newham and the Royal Borough of Greenwich as well as other relevant boroughs. This will include sites such as the Continuous Monitoring Stations at Millennium Primary School in RB Greenwich and the A12 Blackwall in LB Newham. Data from other sites will also be drawn upon to build a picture of the levels of air quality around the scheme.
TfL’s plans for air quality monitoring for the scheme are set out in the Monitoring & Mitigation Strategy certified as part of the DCO. TfL will further develop and discuss these plans with the Silvertown Tunnel Implementation Group and all of this information is made publicly available through TfL’s website: https://tfl.gov.uk/travel-information/improvements-and-projects/silvertown-tunnel