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hiking
within 25 miles
Apr 21, 2026
165 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 Marineappair quality indexclimate monitoringoutdoorsbicyclingexperimentaircommunity-based monitoringusaiphonespringinvestigationdatabasesmartphone applicationcitizen sciencewinterweather dataenvironmental justiceequityclimatemobile applicationnaturegirl scoutscarbon monoxideclimate changeautumnparticulate matterdataair qualityhikingair pollutionstemglobal warmingec2020androidweatherenvironmentscienceair pollution monitoringcarbon dioxidesummer
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