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on a hike
within 25 miles
Dec 24, 2025
61 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 Marinecarbon monoxidewinterair pollutioncitizen scienceparticulate matterairbicyclingair quality indexandroidenvironmentweather dataec2020climate monitoringiphonegirl scoutssmartphone applicationappsteminvestigationclimatecommunity-based monitoringsummerdataair pollution monitoringspringequityexperimenthikingusaclimate changeair qualityglobal warmingmobile applicationweathercarbon dioxideoutdoorsautumndatabaseenvironmental justicesciencenature
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