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water chemistry
within 25 miles
May 17, 2026
70 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 Marineandroidstemweatherairsummerdataclimate monitoringcarbon monoxidespringglobal warmingsciencecommunity-based monitoringmobile applicationenvironmental justiceec2020bicyclingoutdoorscarbon dioxidenatureequitysmartphone applicationair quality indexusagirl scoutsiphoneexperimentenvironmentclimate changeair pollutiondatabaseparticulate matterair qualitywintercitizen scienceclimateinvestigationhikingautumnweather dataair pollution monitoringapp
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