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hiking
within 25 miles
May 12, 2026
49 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 Marineiphoneair pollution monitoringairdatabaseequityair quality indexclimateenvironmentsmartphone applicationappstemandroidclimate changeweatherexperimentusagirl scoutsautumncarbon monoxideparticulate mattersummerhikingdataec2020winterglobal warmingspringnatureair qualitycitizen scienceinvestigationmobile applicationcommunity-based monitoringenvironmental justiceoutdoorsweather datacarbon dioxideair pollutionscienceclimate monitoringbicycling
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