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hiking
within 25 miles
Apr 22, 2026
196 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 Marineec2020air quality indexweather dataparticulate matterair qualitycarbon monoxideair pollutionnatureequityappinvestigationenvironmentexperimentbicyclingclimate monitoringusaairscienceenvironmental justicecitizen sciencemobile applicationcommunity-based monitoringsmartphone applicationstemcarbon dioxideglobal warmingiphonedatabaseandroidspringweatherhikingwinterclimatedatasummerclimate changeautumngirl scoutsair pollution monitoringoutdoors
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