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9 Feb 2021Advanced street canyon model derivation and validation published

CERC's article specifying a detailed derivation of the ADMS-Urban and ADMS-Roads advanced street canyon model has been published in the Journal of the Air and Waste Management Association. The advanced street canyon model feature has been included in the ADMS-Urban and ADMS-Roads models since the release of version 4.0 in 2015 and is now widely used by the ADMS modelling community.

The paper also includes the results of validation studies comparing advanced street canyon, non-canyon and basic canyon modelled concentrations with measurements recorded within three individual European street canyons from the TRAPOS study, and with routine air quality monitoring sites across London. The advanced canyon model is shown to have improved performance relative to the basic canyon or non-canyon modelling, particularly in relation to the variation of concentrations with wind direction and prediction of high concentrations.

The picture shows a vertical cross-section of annual average NO2 concentrations at the Marylebone Road monitoring site in London for 2012. The monitored value is shown in a diamond with the corresponding colour.

CERC are currently investigating and developing the advanced street canyon model for a wider range of street canyon configurations, in relation to monitoring data from the UK and Hong Kong. Details of other publications relating to CERC's research are given on the CERC co-author publications page.


4 Feb 2021Webinar: how can data supercharge efforts to lower air pollution in cities?

Public webinar Tuesday 9 Feb 16:00-17:00 GMT

The evidence is clear: air pollution has severe health impacts around the world. New technology is allowing us to map pollution street-by-street, identify hotspots and share unprecedented amounts of air quality data. The Breathe London pilot was an ambitious two-year project that measured pollution across the city using 100 lower-cost sensor 'pods' and specially-equipped Google Street View cars, serving as a world-leading example of how emerging technology can help accelerate clean air action. CERC was a partner in the pilot project, providing the public project data platform and ADMS-Urban modelled data and analysis.

Join this webinar for a discussion of key lessons from the pilot project and the launch of the Breathe London Blueprint, as well as how new efforts to leverage air quality data are shining a light on pollution at a scale and scope across the globe like never before.

Amy Stidworthy from CERC will discuss how the ADMS-Urban model was used in the pilot project to produce detailed, location-specific information on pollution sources and to assess the impact of potential future policies on reducing air pollution in London.

Also featuring:

  • Matt Whitney from Clean Air Fund, a philanthropic initiative tackling air pollution around the world
  • Elizabeth Fonseca from Environmental Defense Fund Europe, which managed the Breathe London pilot project
  • Jeremy Taub from OpenAQ, a platform that is fighting air inequality with open data

See the LinkedIn event page for more information and to register for the webinar.

4 Feb 2021EFT 10.1 update for EMIT

Version 10.1 is the latest version of the Emissions Factors Toolkit (EFT) released by the UK Department for Environment, Food & Rural Affairs and the Devolved Administrations. Details of the changes for this version are given on page 5 of the EFT user guide.

We have processed the new EFT and published an update for EMIT on the Other downloads page of our User Area. If you are registered, you can go straight to the download folder. If you are not registered, follow the instructions on the User Area main page.

EMIT is our comprehensive emissions inventory tool for:

  • Source apportionment: quantifying emissions contributions from particular road vehicles such as diesel cars
  • Simple, fast emissions calculations across large urban areas for dispersion modelling with ADMS-Urban
  • Consistent, verifiable and traceable emission calculations with all input and output data in a single file
  • Importing and exporting data in ArcGIS shape file or CSV file format

25 Jan 20212020 ADMS User Group Meetings – recordings of CERC presentations are available to view

Following last year's ADMS User Group Meetings, which took place online on 18 and 19 November, recordings of the CERC presentations are now available to view in the CERC website User Area, alongside these are PDF copies of all the presentations. Model users with a valid support contract, including all annual licence holders, are entitled to register for password-protected access to the User Area. To register, or to be reminded of your password, click here.

11 Dec 2020Highways England sponsor ADMS-Roads elevated roads development

CERC have enhanced ADMS-Roads to address the air pollution from elevated roads within the Highways England Strategic Roads Network (SRN). ADMS-Roads is the most widely used air dispersion modelling tool for predicting concentrations of nitrogen dioxide (NO2) and other pollutants near roads on the SRN. This project will have far-reaching influence as ADMS-Roads becomes the first commonly-used tool to include the significant effects of wind flow around flyovers on pollution impact for local populations.

Highways England, in partnership with Innovate UK, funded these scientific developments through an SBRI competition to support innovations to tackle air quality around the country's motorways and major A roads. Chris Hogan, Air Quality Designated Fund Programme Manager at Highways England, said "This very successful project exemplifies a great benefit of the innovation competition, which is that it enables our technical specialists to engage directly with external experts to create solutions well adapted to our needs."

Full details of the project findings are given in the project report. Chris Hogan and CERC's Mark Jackson discussed the project and the SBRI initiative at a panel discussion in the Highways UK conference (view video).

CERC have provided Highways England with the new feature. CERC will also roll it out to all ADMS-Roads and ADMS-Urban users shortly.

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