EPA Environmental Dataset Gateway


Open/Close section Identification Information
Title: US EPA Office of Research and Development Community-Focused Exposure and Risk Screening Tool (C-FERST) Air Pollutants 2011 web mapping service
Abstract: This map service displays all air-related layers used in the USEPA Community/Tribal-Focused Exposure and Risk Screening Tool (C/T-FERST) mapping application (https://www.epa.gov/c-ferst and https://www.epa.gov/tribal-ferst)). The following data sources (and layers) are contained in this service: USEPA's 2011 National-Scale Air Toxic Assessment (NATA) data. Data are shown at the census tract level (2010 census tract boundaries, US Census Bureau) for Cumulative Cancer and Non-Cancer Respiratory risks 180 air toxics. In addition, individual pollutant estimates of Ambient Concentration, Exposure Concentration, Cancer Risk, and Non-Cancer Risk (Neurological and Respiratory) are provided for: Acetaldehyde, Acrolein, Arsenic, Benzene, 1,3-Butadiene, Chromium, Diesel particulate matter (PM), Formaldehyde, Lead, Naphthalene, and Polycyclic Aromatic Hydrocarbon (PAH). The original data were downloaded from USEPA's Office of Air and Radiation (OAR) (https://www.epa.gov/national-air-toxics-assessment/2011-nata-assessment-results). The data classification for this web service were developed for USEPA's Office of Research and Development's (ORD) C-FERST per guidance provided by OAR. The NATA is EPA's comprehensive evaluation of air toxics in the United States, based on modeled air quality. EPA developed the NATA as a tool for EPA and State/Local/Tribal Agencies to prioritize air toxics, emission sources, and locations of interest for further study in order to gain a better understanding of risks. NATA is a state-of-the-science screening tool that does not incorporate refined information about emission sources, but rather, uses general information about sources to develop estimates of risks using analytical methods. NATA assessments provide screening-level estimates of the risk of cancer and other serious health effects from breathing (inhaling) air toxics in order to inform both national and more localized efforts to identify and prioritize air toxics, emission source types, and locations that are of greatest potential concern in terms of contribution to population risk. This helps air pollution experts focus limited analytical resources on areas or populations where the potential for health risks are highest. NATA provides a snapshot of the outdoor air quality and the risks to human health that would result if air toxic emission levels remained unchanged. A more detailed explanation of NATA and the methods used may be found in the Technical Support Document (https://www.epa.gov/national-air-toxics-assessment/2011-nata-technical-support-document). See the NATA Homepage (https://www.epa.gov/national-air-toxics-assessment) for additional information, including an overview (https://www.epa.gov/national-air-toxics-assessment/nata-overview), limitations (https://www.epa.gov/national-air-toxics-assessment/nata-limitations), frequent questions (https://www.epa.gov/national-air-toxics-assessment/nata-frequent-questions), and glossary (https://www.epa.gov/national-air-toxics-assessment/nata-glossary-terms). Access constraints: None. Use constraints: None. 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.
Purpose: The purpose of this Air service is to aid the C-FERST/T-FERST user with environmental assessments. C-FERST and T-FERST are being designed as a "one-stop-shop" community mapping and assessment tool to inform environmental public health decisions. C-FERST is a GIS and information access Web tool for supporting cumulative risk screening assessments, to support decision-making for sustainable and healthy communities. This web service displays all air-related layers used in C-FERST and T-FERST.
Open/Close section Distribution Information
Resource(Server) URL: https://geodata.epa.gov/arcgis/rest/services/ORD/Air_Pollutants_CFERST/MapServer
Download URL: https://edg.epa.gov/metadata/
Open/Close section Time Period of Content
Publication Date: 20160721
Progress: Completed
Frequency: As needed
Open/Close section Single Date
Date: 2011
Currentness: Publication date
Open/Close section Spatial Domain
West Bounding Longitude: -138.21454852
East Bounding Longitude: -12.68151645
North Bounding Latitude: 61.7110157
South Bounding Latitude: 6.65223303
Zoom to the metadata envelope
Open/Close section Constraints
License https://edg.epa.gov/EPA_Data_License.html
Access: None.
Use: 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.
Open/Close section Theme Keywords
Theme Topics: Environment and Conservation
Open/Close section Contact Information
Originator: US Environmental Protection Agency
Email: esrisupport@epa.gov
Address Type: mailing address
City: Research Triangle Park
State: NC
Postal Code: 27711
Telephone: 919-767-7493
Open/Close section Metadata Reference Information
File Identifier: {bb1462ea-9218-484c-9e99-fad201f5e811}
Metadata Date Stamp: 2016-07-21
Metadata Standard Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-001-1998