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hiking
within 25 miles
Apr 7, 2026
182 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 Marineexperimentgirl scoutsspringusaenvironmentcitizen scienceclimatedatacarbon dioxideinvestigationandroidglobal warmingcarbon monoxideoutdoorsair qualitystemweather datanatureequitydatabaseappec2020environmental justiceairautumnweathersummersmartphone applicationscienceair pollutionclimate changemobile applicationparticulate matterclimate monitoringcommunity-based monitoringair pollution monitoringiphonebicyclinghikingwinterair quality index
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