{7BF467D5-A5D7-427B-B896-5674A15B55B4} eng; USA utf8 dataset Halil Cakir U.S. Environmental Protection Agency, Office of Air and Radiation-Office of Air Quality Planning and Standards EDG Steward 919-541-5390 109 T.W. Alexander Drive Research Triangle Park NC 27709 Cakir.Halil@epa.gov pointOfContact 2021-06-24 ISO 19115 Geographic Information - Metadata ISO 19115:2003/Cor.1:2006(E) Air Quality System (AQS) Monitoring Network, EPA OAR OAQPS 2015-11-18 publication U.S. EPA Office of Air and Radiation (OAR) - Office of Air Quality Planning and Standards (OAQPS) Research Triangle Park NC publisher U.S. Environmental Protection Agency originator This GIS dataset contains points which depict air quality monitors within EPA's Air Quality System (AQS) monitoring network. This dataset is updated weekly to reflect the most recent changes in the monitoring network. The monitors are generally operated by State, local, and tribal air pollution control agencies using procedures specified by the U.S. EPA. These agencies collect the data, quality assure it, and then submit it to the EPA Air Quality System (AQS). The GIS dataset includes monitor information and links to download historic air quality data at each monitor. The purpose of this dataset is to provide air monitoring and pollutant information to the public. completed Halil Cakir U.S. Environmental Protection Agency, Office of Air and Radiation-Office of Air Quality Planning and Standards EDG Steward 919-541-5390 109 T.W. Alexander Drive Research Triangle Park NC 27709 Cakir.Halil@epa.gov pointOfContact weekly Air Environment Exposure Health Human Monitoring Quality Toxics theme EPA GIS Keyword Thesaurus Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Puerto Rico Rhode Island South Carolina South Dakota Tennessee Texas United States Utah Vermont Virgin Islands Virginia Washington Washington DC West Virginia Wisconsin Wyoming place None https://edg.epa.gov/EPA_Data_License.html otherRestrictions Use Constraints: None. Please check sources, scale, accuracy, currency 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. otherRestrictions Access Constraints: None PUBLIC https://project-open-data.cio.gov/schema/#accessLevel Standard Technical Controls eng; USA climatologyMeteorologyAtmosphere environment health -167.803765955 -58.461724639 -7.795760124 85.322212718 2015-11-18 false Entity and Attribute Information Entity and Attribute Overview: Attributes included in the feature class are as follows: AQS_Site_ID - The geographic identifier of the site within AQS. It is the concatenation (with hyphens) of the State FIPS Code, the County FIPS Code, and a unique site number within the county. This field is useful when data needs to be cross referenced to other AQS data. POC - Parameter Occurrence Code. This is used to differentiate multiple monitors for the same parameter at the same site. They do not always start at 1 and they are not always sequential. State - The name of the state where the site is located. City - The name of the city where the site is located if within incorporated limits. CBSA - The name of the Core-Based Statistical Area where the site is located. Local_Site_Name - The name of the site given by the State, local, or tribal air pollution control agency that operates it. Address - The approximate street address of the site. Datum - The horizontal datum associated with the latitude and longitude values. Latitude - The latitude of the site. Longitude - The longitude of the site. LatLon_Accuracy_meters - When determining the latitude and longitude, the estimated accuracy (e.g., error) inherent in that determination. This is often based on the method used by the submitting agency (e.g., map interpolation vs. GPS displayed error) or better estimates they may have. The unit of measure is meters. Elevation_meters_MSL - The altitude of the ground at the monitoring location above mean sea level. The unit of measure is meters. If the value listed is zero, this most likely means that EPA does not have the elevation data for this monitor, not that the site is at sea level. Parameter_Name - The name of the parameter being measured. Monitor_Start_Date - The date the operating agency indicated that the monitor began collecting data. Last_Sample_Date - The last day for which the EPA has a measurement from this monitor. Active - A Yes/No indicator of whether the monitor is active. Measurement_Scale - An indication of the size of the area represented by the monitor. That is, air at the monitor will be typical of the air on this scale. See the next field for a numerical definition of the scale. Measurement_Scale_Definition - A numerical description of the above name. Sample_Duration - The amount of time the monitor samples the air before it reports a measurement. This is important for two reasons. First, this is an averaging time for the measurement. Second, the monitor cannot sample more frequently than the sample duration. That is, a 24-hour sample cannot be made more than once per day. Sample_Collection_Frequency - How often a measurement is taken at this site. This field is only populated for PM2.5 and PM10 monitors and filter-based samples are generally collected every day, every 3rd day, or every 6th day. Sample_Collection_Method - A short description of how the sample of air is collected. Sample_Analysis_Method - A short description of how the sample of air is analyzed to determine the concentration. Method_Reference_ID - Reference identifier. FRMFEM - A Yes/No indicator of whether the methods used at this monitor are Federal Reference Methods, Federal Equivalent Methods, or Approved Regional Methods. A yes indicates that a reference method was used and the data can be used to compare to a standard. A no indicates a reference method was not used. Monitor_Type - An administrative designation for the monitor roughly indicating the monitoring network to which it belongs. Reporting_Agency - The organization responsible for submitting the data for this monitor to the US EPA. Annual_URLs - Internet links that run queries against the AQS Data Mart database to return annual data for the monitor as a CSV (comma separated values) file. There may be some delay in the data being returned, especially for the daily data, as the query is running against a live database. Note that all parameters measured at the site are returned, so even if you click on the link from an ozone file, you may get back meteorological and particle speciation data (if it is also measured at that site). For a PM2.5 monitoring site, you will get back the FRM/FEM monitoring data, but you may also get back measurements of PM2.5 made with other methods such as continuous monitoring methods based on measurement principles other than filter weight changes. These estimates of PM2.5 generally will not agree exactly. The FRM/FEM data will appear under the name “PM2.5 - Local Conditions”. The other method results will appear under the names “Acceptable PM2.5 AQI & Speciation Mass”, “PM2.5 Raw Data”, “PM2.5 Total Atmospheric” or "PM2.5 Volatile Channel." The years listed are all years since 1990 for which EPA has data for this monitor. Daily_URLs - Internet links that run queries against the AQS Data Mart database to return daily data for the monitor as a CSV (comma separated values) file. There may be some delay in the data being returned, especially for the daily data, as the query is running against a live database. Note that all parameters measured at the site are returned, so even if you click on the link from an ozone file, you may get back meteorological and particle speciation data (if it is also measured at that site). For a PM2.5 monitoring site, you will get back the FRM/FEM monitoring data, but you may also get back measurements of PM2.5 made with other methods such as continuous monitoring methods based on measurement principles other than filter weight changes. These estimates of PM2.5 generally will not agree exactly. The FRM/FEM data will appear under the name “PM2.5 - Local Conditions”. The other method results will appear under the names “Acceptable PM2.5 AQI & Speciation Mass”, “PM2.5 Raw Data”, “PM2.5 Total Atmospheric” or "PM2.5 Volatile Channel." The years listed are all years since 1990 for which EPA has data for this monitor. Network - The network in which this monitor operates. This is an administrative classification and is useful for grouping monitors with similar methods, quality assurance procedures, etc. Entity and Attribute Detail Citation: https://www3.epa.gov/airquality/airdata/ad_maps.html Halil Cakir U.S. Environmental Protection Agency, Office of Air and Radiation-Office of Air Quality Planning and Standards EDG Steward 919-541-5390 109 T.W. Alexander Drive Research Triangle Park NC 27709 Cakir.Halil@epa.gov distributor https://www.epa.gov/outdoor-air-quality-data/interactive-map-air-quality-monitors download Download The URL providing direct access to the downloadable dataset. download https://gispub.epa.gov/arcgis/rest/services/OAR_OAQPS/AQSmonitor_sites/MapServer ESRI:ArcGIS API The endpoint of a web service to access the dataset (REST endpoint, WMS GetCapabilities URL, or a SOAP WSDL endpoint). webMapService https://www3.epa.gov/airdata/ information Documentation URL for accessing related documents such as data dictionary, technical information about a dataset, developer documentation, etc. information dataset Horizontal Positional Accuracy Report Data were collected using methods that have unknown accuracy (EPA National Geospatial Data Policy [NGDP] Accuracy Tier 10). For more information, please see EPA's NGDP at http://epa.gov/geospatial/policies.html) Features represented have not been tested for completeness Features represented have not been tested for completeness Tests for integrity have not been performed. This lineage was generated by the FGDC CSDGM to 19139 transformation Set up weekly extraction of data from AQS Database to file geodatabase feature class. 2015-11-18T00:00:00 Tim Richards U.S. Environmental Protection Agency, Office of Environmental Information Geospatial Data Owner 919-541-5307 109 T.W. Alexander Drive N252-01 Research Triangle Park NC 27709 richards.tim@epa.gov processor Create web service from file geodatabase. 2015-11-18T00:00:00 EPA GIS Agency Central Support U.S. Environmental Protection Agency, Research Triangle Park OEI RTP NCC GIS 919-767-7493 (415) 947-3553 USEPA Mailroom N127-02 Research Triangle Park NC 27711 esrisupport@epa.gov processor Source Contribution: Source Type: Air Quality System (AQS) database 2015-11-18 publication U.S. EPA Office of Air and Radiation (OAR) - Office of Air Quality Planning and Standards (OAQPS) Washington DC publisher U.S. EPA originator unknown 2019-11-19 This metadata was automatically generated from the FGDC Content Standard for Digital Geospatial Metadata standard (version FGDC-STD-001-1998) using the 2024-02-09T11:11:00 version of the FGDC CSDGM to ISO 19139 transform. Halil Cakir U.S. Environmental Protection Agency, Office of Air and Radiation-Office of Air Quality Planning and Standards EDG Steward 919-541-5390 109 T.W. Alexander Drive Research Triangle Park NC 27709 Cakir.Halil@epa.gov pointOfContact