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hiking
within 25 miles
Apr 10, 2026
189 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 Marineiphoneusaec2020wintercarbon monoxidecommunity-based monitoringsciencesummerclimateappair pollution monitoringair pollutionclimate changeweatherair qualityenvironmentequitydatadatabaseandroidhikingparticulate matterenvironmental justicecitizen sciencesmartphone applicationgirl scoutsstembicyclingoutdoorsairspringcarbon dioxideweather dataclimate monitoringexperimentmobile applicationnatureinvestigationautumnair quality indexglobal warming
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