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on a hike
within 25 miles
Apr 23, 2026
188 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 Marineiphonesmartphone applicationgirl scoutsclimate monitoringcarbon dioxideinvestigationsciencemobile applicationair quality indexdatabasewinterglobal warmingcarbon monoxideec2020air pollutionclimate changeappoutdoorssummerexperimentbicyclingenvironmental justiceairweatherenvironmentusacommunity-based monitoringweather dataautumnparticulate matterstemequityair pollution monitoringspringhikingclimatenatureandroidair qualitydatacitizen science
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