{"@type": "dcat:Dataset", "accessLevel": "public", "accrualPeriodicity": "irregular", "bureauCode": ["020:00"], "contactPoint": {"@type": "vcard:Contact", "fn": "N/A, U.S. EPA Office of Air and Radiation (OAR) - Office of Air Quality Planning and Standards (OAQPS)", "hasEmail": "mailto:aqsteam@epa.gov"}, "dataQuality": false, "description": "The Historical Ambient Air Quality Data Inventory contains measured and estimated data on ambient air pollution for use in assessing air quality, assisting in designating attainment/non-attainment areas, evaluating state implementation plans for non-attainment areas, performing modeling for permit review analysis, and other air quality functionsThe statutory authority leading to the collection of this information comes from Title I, Part A of the  Clean Air Act. Sustance classes include Criteria Air Pollutants, Hazardous Air Pollutants, and Greenhouse Gases. Data no longer collected, current Ambient Air Quality Data Inventory uses higher geographic density and more robust methods of measurement.", "identifier": "651B2300-A3FF-4DE6-AEE7-882751511C5C", "issued": "2014-01-01", "keyword": ["epa", "oar", "aqs", "air quality system", "cmaq", "community multi-scale air quality model outputs", "ambient air quality data", "criteria air pollutants", "hazardous air pollutants", "greenhouse gases", "caps", "haps", "ghgs", "clean air act", "office of air and radiation", "office of air quality planning and standards", "environmental protection agency", "climate change", "environment", "environment", "united states", "environment"], "language": ["en-US"], "license": "https://edg.epa.gov/EPA_Data_License.htm", "modified": "2014-01-01", "programCode": ["020:072"], "publisher": {"@type": "org:Organization", "name": "U.S. EPA Office of Air and Radiation (OAR) - Office of Air Quality Planning and Standards (OAQPS)"}, "references": ["https://edg.epa.gov/metadata/catalog/search/resource/details.page?uuid=%7B651B2300-A3FF-4DE6-AEE7-882751511C5C%7D", "https://edg.epa.gov/metadata/rest/document?id=%7B651B2300-A3FF-4DE6-AEE7-882751511C5C%7D"], "spatial": "-180.0,18.0,-66.0,72.0", "title": "Historical Ambient Air Quality Data Inventory"}