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on a hike
within 25 miles
Apr 29, 2026
81 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 Marinescienceweather datahikingstemcommunity-based monitoringenvironmentoutdoorsequitybicyclingdataec2020carbon dioxideinvestigationglobal warmingautumnair qualityiphonenatureair pollution monitoringsmartphone applicationclimate monitoringclimatecarbon monoxidewinterexperimentandroidenvironmental justiceusasummerclimate changeappmobile applicationair quality indexair pollutiondatabaseparticulate mattercitizen scienceweatherspringgirl scoutsair
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