An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »


Region 2: Evaluating Air Pollution Sensors for Hot Spot Monitoring by Citizen Scientists

2020 Regional-State-Tribal Innovation Projects

Compact, mixed-use development patterns with commercial, residential, and civic buildings are common throughout New Jersey. These types of neighborhoods may pose localized air quality risks for pedestrians from automobile pollution, yet little research has explored the impacts of automobile traffic on air quality for pedestrians.

This goal of this project is to conduct a scientifically sound evaluation of a low-cost air sensor network for citizen science screening and monitoring at a neighborhood scale. Pollutants to be monitored include nitric oxide, nitrogen dioxide, total oxidants, carbon monoxide, and particulate matter. The project will provide a real-world test of the Citizen Science Quality Assurance Project Plan Template for Hot Spot Identification, developed by the NJ Department of Environmental Protection. Lessons learned about low-cost sensor networks will be used in the Region 2 Citizen Science Equipment Loan Program. Project results will be shared with state, local, and community organizations interested in the design and conduct of community monitoring projects.

Partners: New Jersey Department of Environmental Protection