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Street-level air pollution map, accurate down to 10 metres

Street-level air pollution map, accurate down to 10 metres

Technology News |
By eeNews Europe



MappAir now provides hourly concentrations of five pollutants, adding ozone (O3,), sulphur dioxide (SO2) and particle matter (PM10) to its existing nitrogen dioxide (NO2) and particle matter (PM2.5) measures. Another new feature of MappAir is that its data is now accessible via a simple application programming interface (API) which enables multiple options for users to access the data.

EarthSense incorporates a range of reliable data sources into MappAir, including data from satellites, weather data, traffic counts, static sources and its own Zephyr air quality monitors. MappAir is the only air pollution model that uses a complex modelling technique called computational fluid dynamics (CFD), which examines the flow and dispersion of air in built-up environments enabling improved pollution measures in urban canyons – areas where a street is flanked by buildings on both sides.

“Using CFD allows EarthSense to offer highly detailed insights into air pollution on a scale previously not achievable with traditional methods. MappAir makes air pollution data more accessible than ever, which is important for demonstrating the impact of pollution on human health and the environment” explains EarthSense Head of Modelling, Dr. Antoine Jeanjean.

“These latest developments mean we can not only monitor pollution at street level but can now build a global picture of air pollution and incorporate a greater number of pollution sources. Furthermore, MappAir now offers a three-day pollution forecast for the entire globe,” continued Dr. Jeanjean.


MappAir can identify when and where pollution levels are at their highest and lowest, making it a highly valuable tool for use in many applications including traffic light sequencing, clean route apps for cyclists and walkers, and defining control zones where hybrid vehicles automatically switch to electric mode on entering the area.

The contaminants map is validated against air quality data from the Department for Environment, Food and Rural Affairs (DEFRA), diffusion tubes, and a rapidly expanding network of EarthSense Zephyr air quality sensors in mobile and static configurations ensuring a high level of accuracy.

EarthSense – www.earthsense.co.uk

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