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on a hike
within 25 miles
Mar 30, 2026
62 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 Marineairdatabaseclimatewinterspringweather datasmartphone applicationstemglobal warmingair pollutionautumnparticulate mattersciencecitizen sciencecommunity-based monitoringclimate monitoringdatacarbon dioxideenvironmental justicebicyclingappiphoneusaequityair quality indexgirl scoutsmobile applicationnatureenvironmentweatherandroidoutdoorsclimate changeair pollution monitoringsummercarbon monoxideinvestigationair qualityhikingexperimentec2020
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