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hiking
within 25 miles
Apr 3, 2026
104 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 Marinedatabaseair qualityiphoneair pollutionenvironmental justiceglobal warmingspringsummerair pollution monitoringinvestigationwinterec2020carbon monoxidecommunity-based monitoringenvironmentandroidparticulate matterweather dataweatherhikingairair quality indexdatamobile applicationcitizen scienceautumnclimate monitoringbicyclingappsciencesmartphone applicationcarbon dioxideclimateusaexperimentstemnatureclimate changeoutdoorsgirl scoutsequity
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