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hiking
within 25 miles
Apr 16, 2026
177 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 Marineair quality indexequitysmartphone applicationstemnatureiphoneweathercarbon dioxidedatabaseairusacommunity-based monitoringair pollutionhikinggirl scoutsdataautumnglobal warmingenvironmental justicebicyclingappair qualityair pollution monitoringspringexperimentinvestigationwintermobile applicationenvironmentweather datacarbon monoxideclimate monitoringclimatescienceec2020climate changeandroidparticulate mattercitizen scienceoutdoorssummer
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