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hiking
within 25 miles
Apr 1, 2026
108 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 Marinestemenvironmentspringnatureautumnair pollution monitoringair quality indexclimate changeweather dataoutdoorssummerdatabaseglobal warminginvestigationenvironmental justicedatamobile applicationiphonegirl scoutscarbon monoxideusaparticulate mattercarbon dioxideec2020climate monitoringsmartphone applicationappclimatebicyclingsciencecitizen scienceair qualityequityweatherandroidexperimenthikingwintercommunity-based monitoringairair pollution
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