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on a hike
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 Marineautumnequityair pollution monitoringair qualitydataweather dataparticulate matterclimateexperimentclimate changeair quality indexusaec2020climate monitoringstemspringairmobile applicationoutdoorssciencegirl scoutsweatheriphonedatabaseenvironmentcommunity-based monitoringsmartphone applicationbicyclingappnaturecitizen scienceinvestigationair pollutionglobal warmingsummerenvironmental justicehikingandroidcarbon monoxidewintercarbon dioxide
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