{99b1d6d6-cdf2-4c19-ba63-fdb8f11eafdb} eng; USA utf8 dataset EnviroAtlas Coordinator U.S. Environmental Protection Agency, Office of Research and Development-Sustainable and Healthy Communities Research Program, EnviroAtlas Geospatial Data Owner (919) 541-3832 109 T.W. Alexander Drive Research Triangle Park NC 27709 EnviroAtlas@epa.gov https://www.epa.gov/enviroatlas pointOfContact 2025-02-11 ISO 19115 Geographic Information - Metadata ISO 19115:2003/Cor.1:2006(E) EnviroAtlas - Selected National Air Toxics Assessment Results by Census Tract - 2014 2019-08-15 publication U.S. EPA Office of Research and Development (ORD) - National Exposure Research Laboratory (NERL) Research Triangle Park NC publisher U.S. Environmental Protection Agency (US EPA) originator These layers are a selection of the National Air Toxics Assessment (NATA) 2014 estimates of ambient concentrations and health-effect results by 2010 U.S. Census Tract. The Environmental Protection Agency (EPA) developed NATA as a screening tool to identify potential health risks from toxic air pollutants for further study. Please see NATA's website (https://www.epa.gov/national-air-toxics-assessment) for information about using NATA. This dataset is based on data from 2014 NATA, which was produced by the US EPA to estimate health risks from toxic air pollutants. It was modified for incorporation into the Compare my Area tool. The NATA results are available as downloadable data from https://www.epa.gov/national-air-toxics-assessment/2014-nata-assessment-results. The National Air Toxics Assessment (NATA) is EPA's ongoing review of air toxics in the United States. EPA developed NATA as a screening tool for state, local and tribal air agencies. NATA’s results help these agencies identify which pollutants, emission sources and places they may wish to study further to better understand any possible risks to public health from air toxics. NATA gives a snapshot of outdoor air quality with respect to emissions of air toxics. It suggests the long-term risks to human health if air toxics emissions are steady over time. NATA estimates the cancer risks from breathing air toxics over many years. It also estimates noncancer health effects for some pollutants, including diesel particulate matter (PM). NATA calculates these air toxics concentrations and risks at the census tract level. It only includes outdoor sources of pollutants. Air quality specialists use NATA results to learn which air toxics and emission source types may raise health risks in certain places. They can then study these places in more detail, focusing where the risks to people may be highest. EPA designed NATA to help reduce toxic air pollution and build on the large emissions cuts achieved in the United States since 1990. We also developed NATA to help air quality scientists collect air toxics emissions data and learn where health risks may be high. These results help guide local air agencies as they study these emissions and places in more detail. NATA results are best used to focus on patterns and ranges of risks across the country. You can use NATA to: - prioritize pollutants and emission source types; - identify places of interest for further study; - get a starting point for local assessments; - focus community efforts; - inform monitoring programs. EPA uses the results of assessments to: - improve data in emission inventories; - learn where to expand our air toxics monitoring network; - help target risk reduction activities; - identify pollutants and source types of greatest concern; - help decide what other data to collect; - better understand risks from air toxics; - work with communities to design their own assessment. The information above was taken from NATA's website. For more information about NATA, please see https://www.epa.gov/national-air-toxics-assessment. The overall goal of EnviroAtlas is to employ and develop the best available science to map indicators of ecosystem services production, demand, and drivers for the nation. completed EnviroAtlas Coordinator U.S. Environmental Protection Agency, Office of Research and Development-Sustainable and Healthy Communities Research Program, EnviroAtlas Geospatial Data Owner (919) 541-3832 109 T.W. Alexander Drive Research Triangle Park NC 27709 EnviroAtlas@epa.gov https://www.epa.gov/enviroatlas pointOfContact asNeeded Ecosystem Environment theme EPA GIS Keyword Thesaurus Air Contaminant Ecosystem Services EnviroAtlas Environment Environmental Atlas Exposure Health Human Human Well-being Impact Risk Toxics theme EnviroAtlas 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.github.io/schema/#accessLevel Standard Technical Controls eng; USA environment -138.21454852 -12.68151645 6.65223303 61.7110157 2014-01-01 To make NATA possible, we must make some assumptions about the air toxics emissions data that go into it. These assumptions mean that NATA can’t give precise exposures and risks for a specific person. Instead, NATA results are best applied to larger areas – counties, states and the nation. Results for smaller areas, such as a census tract, are best used to guide follow-up local studies. NATA calculates concentration and risk estimates from a single year’s emissions data. The risk estimates assume a person breathes these emissions each year over a lifetime (or approximately 70 years). NATA only considers health effects from breathing these air toxics. It ignores indoor hazards, contacting or ingesting toxics, and any other ways people might be exposed. Keep these limitations in mind when interpreting the results. Only use the results in ways for which the assessment methods are suited. NATA assessments should not be used: - to pinpoint specific risk values in small areas such a census tract; - to characterize or compare risks at local levels (such as between neighborhoods); - to characterize or compare risks between states, - to examine trends from one NATA year to another, - as the sole basis for risk reduction plans or regulations; - to control specific sources or pollutants; - to quantify benefits of reduced air toxics emissions. The information above was taken from NATA's website. For more information about NATA, please see https://www.epa.gov/national-air-toxics-assessment. true Entity and Attribute Information Entity and Attribute Overview: This dataset is a selection of ambient concentrations and health-effect results from NATA. For more information about how these metrics were calculated them and how to use them, please visit NATA's website (https://www.epa.gov/national-air-toxics-assessment). A comprehensive list of metric creation steps is included in the Processing Steps. Entity and Attribute Detail Citation: https://www.epa.gov/enviroatlas/enviroatlas-fact-sheets EnviroAtlas Coordinator U.S. Environmental Protection Agency, Office of Research and Development-Sustainable and Healthy Communities Research Program, EnviroAtlas Geospatial Data Owner (919) 541-3832 109 T.W. Alexander Drive Research Triangle Park NC 27709 EnviroAtlas@epa.gov https://www.epa.gov/enviroatlas distributor https://epa.maps.arcgis.com/home/item.html?id=9c229d15674e439699806dbdc2abbacd download Download The URL providing direct access to the downloadable dataset. download https://www.epa.gov/enviroatlas/enviroatlas-data 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://www.epa.gov/enviroatlas 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 Downloaded NATA hazard index summaries, cancer risk summaries, and Access databases from https://www.epa.gov/national-air-toxics-assessment/2014-nata-assessment-results#self 2018-01-01T00:00:00 Joined selected fields to 2010 TIGER Census Tracts. 2018-01-01T00:00:00 unknown 2029-02-11 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. EnviroAtlas Coordinator U.S. Environmental Protection Agency, Office of Research and Development-Sustainable and Healthy Communities Research Program, EnviroAtlas Geospatial Data Owner (919) 541-3832 109 T.W. Alexander Drive Research Triangle Park NC 27709 EnviroAtlas@epa.gov https://www.epa.gov/enviroatlas pointOfContact