U.S. Environmental Protection Agency, Office of Air and Radiation, Office of Air Quality Planning and Standards (OAQPS)Ozone Nonattainment Areas based on the 2008 standardResearch Triangle Park, NCU.S. Environmental Protection Agency, Office of Air Quality Planning and Standards (OAQPS)20120613vector digital datahttp://www.epa.gov/oar/oaqps/greenbk/gis_download.htmlhttp://www.epa.gov/oar/oaqps/greenbk/gis_download.htmlThis data layer identifies areas in the U.S. where air pollution levels have not met the National Ambient Air Quality Standards (NAAQS) for ozone and have been designated "nonattainment". The EPA Office of Air Quality Planning and Standards (OAQPS) has set National Ambient Air Quality Standards for six principal pollutants, which are called "criteria" pollutants. Under provisions of the Clean Air Act, which is intended to improve the quality of the air we breathe, EPA sets limits on how much of a pollutant can be in the air anywhere in the United States. This ensures that all Americans have the same basic health and environmental protections. The law allows individual states to have stronger pollution controls, but states are not allowed to have weaker pollution controls than those set for the whole country. EPA calls these pollutants "criteria air pollutants" because the agency has regulated them by first developing health-based criteria (science-based guidelines) as the basis for setting permissible levels. One set of limits (primary standard) protects health; another set of limits (secondary standard) is intended to prevent environmental and property damage. A geographic area that meets or does better than the primary standard is called an attainment area; areas that don't meet the primary standard are called nonattainment areas.This data set is intended to help provide the public with information to determine whether or not air quality within a given area is healthy. Once designations take effect, they also become an important component of state, tribal and local governments' efforts to control ground-level ozone.http://www.epa.gov/oar/oaqps/ - Office of Air Quality Planning and Standards web site http://www.epa.gov/air/criteria.html - National Ambient Air Quality Standards web pagePublication date20120613As needed-138.21454852-12.6815164561.71101576.65223303ISO 19115 Topic CategoryboundariesclimatologyMeteorologyAtmosphereenvironmentgeoscientificInformationhealthUnknownNonattainmentEPA GIS Keyword ThesaurusAirComplianceEnvironmentHealthImpactMonitoringQualityRegulatorynoneUnited States (US) (USA)conterminous United States (CONUS)AlaskaHawaiiDistrict of ColumbiaWashington DCAmerican SamoaPuerto RicoVirgin IslandsAlabamaArizonaArkansasCaliforniaColoradoConnecticutDelawareFloridaGeorgiaIdahoIllinoisIndianaIowaKansasKentuckyLouisianaMaineMarylandMassachusettsMichiganMinnesotaMississippiMissouriMontanaNebraskaNevadaNew HampshireNew JerseyNew MexicoNew YorkNorth CarolinaNorth DakotaOhioOklahomaOregonPennsylvaniaRhode IslandSouth CarolinaSouth DakotaTennesseeTexasUtahVermontVirginiaWashingtonWest VirginiaWisconsinWyomingData have restricted access due to the sensitive nature of the locational information presented and may only be shared with federal, state, local or other trusted EPA partners.Data are considered current to the date of the original source material. Please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the most recent copy of both data and metadata. Acknowledgement of the EPA would be appreciated.Microsoft Windows 2000 Version 5.2 (Build 3790) Service Pack 2; ESRI ArcCatalog 9.3.1.1850FIPS Pub 199Medium ConfidentialityData with medium confidentiality may be shared with federal, state local or other trusted EPA partners.EPA, Office of Air Quality Planning and Standards (OAQPS)Butch Stackhousemailing and physicalState and Local Programs Group109 TW Alexander Dr.Research Triangle ParkNC27711919-541-5208stackhouse.butch@epa.govESRI feature type: Simple, Geometry: PolygonPositional accuracy for the data set varies for individual features within the data set. Actual horizontal positional accuracy for the entire data set is unknown.Unknown0.0000010.000001Decimal degreesNorth American Datum of 1983Geodetic Reference System 19806378137.000000298.257222Map FilesAlthough these data have been processed successfully on a computer system at the Environmental Protection Agency, no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. It is strongly recommended that careful attention be paid to the contents of the metadata file associated with these data to evaluate data set limitations, restrictions or intended use. The U.S. Environmental Protection Agency shall not be held liable for improper or incorrect use of the data described and/or contained herein.EPA, Office of Air Quality Planning and Standards (OAQPS)Butch Stackhousemailing and physicalState and Local Programs Group109 TW Alexander Dr.Research Triangle ParkNC27711919-541-5208stackhouse.butch@epa.gov2012061320160613FGDC Content Standards for Digital Geospatial MetadataFGDC-STD-001-1998local timeEPA, Office of Air Quality Planning and Standards (OAQPS)Butch Stackhousemailing and physicalState and Local Programs Group109 TW Alexander Dr.Research Triangle ParkNC27709919-541-5208stackhouse.butch@epa.gov20120613Microsoft Windows 2000 Version 5.2 (Build 3790) Service Pack 2; ESRI ArcCatalog 9.3.1.1850Ozone_8hr_2008Std_NAA1-123.106914-67.943345.42855428.82422310.0000000.000000-123.106914-67.943345.42855428.82422311-123.107878-70.44625243.89237228.825049US EPA/OAR/OAQPS/AQAD/Air Quality Analysis GroupArcGIS Metadata1.0dataset002file://\\RTP-G0D8LC1\C$\projects\GIS-Maps-Greenbook\Ozone8hr\Ozone_8hr_1997Std_NAA.shpLocal Area Network6.699ShapefileShapefile23.331VectorGCS_North_American_1983EPSG7.4.146Ozone_8hr_2008Std_NAA8-hour Ozone Nonattainment Areas, 2008 standardGeographic Strategies GroupFIDInternal feature number.ESRIOzone_8hr_2008Std_NAA.DBF fileShapeFeature geometry.ESRIOzone_8hr_2008Std_NAA.DBF fileArea_NameNonattainment area nameEPAOzone_8hr_2008Std_NAA.DBF fileCOMPOSIDA unique ID associated with the nonattainment or maintenance area for a specific pollutant standard. The Composid format includes the pollutant, year of the standard, and a short areaname indicator.Geographic Strategies GroupCOMPOSID fieldOzone_8hr_2008Std_NAA.DBF file