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hiking
within 25 miles
Nov 10, 2026
45 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 Marinedatabasecarbon monoxideenvironmentstemair pollutionusadataclimate changeinvestigationweather dataairspringcitizen scienceglobal warmingmobile applicationexperimentapphikingcarbon dioxideec2020air pollution monitoringwinterclimate monitoringenvironmental justicegirl scoutsweathernatureoutdoorsscienceequityclimatecommunity-based monitoringsmartphone applicationair quality indexsummerautumnbicyclingair qualityiphoneparticulate matterandroid

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