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hiking
within 25 miles
Apr 23, 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 Marineglobal warmingappstemgirl scoutsenvironmental justiceinvestigationscienceair pollutionec2020summerparticulate matterdataspringcitizen sciencewinterclimate changeandroidclimate monitoringair quality indexweather databicyclingcarbon monoxidemobile applicationusaweathercarbon dioxideautumniphoneair qualitycommunity-based monitoringenvironmentoutdoorsdatabasenatureair pollution monitoringexperimentairhikingsmartphone applicationclimateequity
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