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A REST web service API allowing the retrieval of real time air quality index data from AirNow.
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A REST web service API allowing the retrieval of historical air quality data from EPA.
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The CASTNET Download Data module allows users to select, view, and download CASTNET data (Raw, Aggregate, Modeled & Factual Data) based on user selections. CASTNET sites are located in or near...
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The AirData Air Quality Monitors app is a mapping application available on the web and on mobile devices that displays monitor locations and monitor-specific information. It also allows the...
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8-hour daily maximum ozone concentrations as measured by the Clean Air Status and Trends Network (CASTNET)
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Nephelometer data (conforms to IMPROVE network standards) from October 1993 to June 2002. This table is no longer updated.
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A web page that describes and links to EPA systems for accessing and downloading ambient (outdoor) air quality and emissions data
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A KMZ file with the location of all major facilities that emit pollutants into the atmopshere.
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Ambient concentrations of most requested pollutants from the national ambient air quality monitoring networks stored in the Air Quality System (AQS).
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Ambient ozone concentrations for 2007 from the national ambient air quality monitoring networks stored in the Air Quality System (AQS).
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