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hiking
within 25 miles
Apr 13, 2026
180 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 Marineequityair pollutiongirl scoutsairscienceair pollution monitoringweather datastemclimateandroidcarbon monoxidespringsmartphone applicationglobal warmingenvironmental justiceappwinterair quality indexexperimentoutdoorsusacitizen scienceinvestigationdatamobile applicationair qualitydatabasesummerhikingiphoneec2020environmentnaturecarbon dioxideclimate changeweatherparticulate matterbicyclingautumncommunity-based monitoringclimate monitoring
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