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on a hike
within 25 miles
May 5, 2026
74 opportunities found! use fewer search filter criteria to find more opportunities

2B Technologies, Inc.

AQTreks (AirQualityTreks)

Monitor air pollution levels and map air pollution around the US

Multiple locations, including yours!

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Citizen ScienceNature & OutdoorsGeographyEducationCrowd FundingTransportationEcology & EnvironmentComputers & TechnologyClimate & WeatherChemistryOcean Water Marinestemwinterscienceandroidparticulate matterexperimentairenvironmental justiceair qualityappweatherair quality indexweather dataec2020climate changeclimate monitoringsmartphone applicationcitizen scienceautumncommunity-based monitoringcarbon dioxidemobile applicationhikingclimatespringsummergirl scoutsair pollutionnatureequitybicyclingcarbon monoxideusaiphoneglobal warmingdatabaseinvestigationdataenvironmentoutdoorsair pollution monitoring
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