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hiking
within 25 miles
Apr 30, 2026
79 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 Marinenatureair quality indexexperimentairscienceparticulate matterenvironmentair pollution monitoringusacitizen scienceec2020climate changewinterair pollutionweather datacommunity-based monitoringclimate monitoringclimateiphonespringsummersteminvestigationcarbon dioxideenvironmental justiceequitymobile applicationglobal warmingappdataandroidbicyclinghikingsmartphone applicationoutdoorsautumnair qualitycarbon monoxidedatabaseweathergirl scouts
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