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hiking
within 25 miles
Apr 12, 2026
185 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 Marineappclimate monitoringsummerair qualityair pollution monitoringair quality indexinvestigationair pollutionhikinggirl scoutsnatureec2020databaseenvironmental justiceairdataenvironmentmobile applicationcommunity-based monitoringweather dataautumnoutdoorsscienceusabicyclingspringiphoneandroidcarbon dioxidecarbon monoxideparticulate matterwinterstemglobal warmingsmartphone applicationclimate changecitizen scienceequityexperimentweatherclimate
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