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

September 23, 2019 //By Julien Happich
air pollution
Air quality expert EarthSense has released its MappAir high-resolution map of air pollution, with powerful new features and improved scalability from global down to 10 metres or street level.

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.


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