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hiking
within 25 miles
May 11, 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 Marineandroidoutdoorsstemdatacarbon monoxideweather dataspringairair quality indexcarbon dioxideequityclimate monitoringiphoneparticulate matterbicyclinggirl scoutssmartphone applicationenvironmentair pollution monitoringusaautumninvestigationcitizen sciencewinterappec2020hikingmobile applicationsummerglobal warmingdatabaseweatherexperimentclimate changecommunity-based monitoringscienceenvironmental justiceair pollutionair qualityclimatenature
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