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hiking
within 25 miles
Apr 22, 2026
196 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 Marineparticulate matterinvestigationhikingclimate monitoringsummerspringdataclimatemobile applicationglobal warmingequitycarbon dioxideairstembicyclingair pollutionscienceenvironmental justiceec2020autumnandroidoutdoorssmartphone applicationwintercommunity-based monitoringcitizen scienceair quality indexexperimentnaturedatabaseiphoneweather datausaclimate changegirl scoutsweatherappenvironmentair qualityair pollution monitoringcarbon monoxide
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