Minnesota Pollution Control Agency

Minnesota Pollution Control Agency

Summary: 50 AQMesh pods are installed in Minneapolis and St. Paul to build up a picture of air quality across the two cities.

Location: Minnesota, USA

Date: Spring 2019 - Present

Customer: Minnesota Pollution Control Agency (MPCA)

Objective: Air quality data will be collected during a two year project to determine if there are any significant differences in the concentration of pollutants between ZIP codes, if there are any areas with unusually high levels of pollution, and if technology such as AQMesh is suitable for measuring such small variations in air quality.

Deployment: 50 AQMesh pods are installed at 44 different monitoring sites throughout Minneapolis and St. Paul, reporting on levels of nitrogen dioxide (NO2), ozone (O3), nitric oxide (NO), sulphur dioxide (SO2), carbon monoxide (CO), fine particulate matter (PM2.5) and corse particulate matter (PM10). 

Results: Prior to being deployed, the AQMesh pods were co-located against the FEM station at Blaine airport for a number of months in order for the readings to be compared and validated. During this co-location period AQMesh showed high levels of pod-to-pod precision, with an average correlation coefficient (R2) of 0.94 for NO2, despite extreme weather conditions.

Project website: https://www.pca.state.mn.us/air/assessing-urban-air-quality-project

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