EPA Environmental Dataset Gateway


Open/Close section Identification Information
Title: Substance Identification Information from EPA's Substance Registry
Abstract: The Substance Registry Services (SRS) is the authoritative resource for basic information about substances of interest to the U.S. EPA and its state and tribal partners. Substances, particularly chemicals, can have many valid synonyms. For example, toluene, methyl benzene, and phenyl methane, are commonly used names for the same chemical. EPA programs collect environmental data for this chemical using each of these names, plus others. This diversity leads to problems when a user is looking for programmatic data for toluene but is unaware that the data is stored under the synonym methyl benzene. For each substance, the SRS identifies the statutes, EPA programs, as well as organization external to EPA, that track or regulate that substance and the synonym used by that statute, EPA program or external organization. Besides standardized information for each chemical, such as the Chemical Abstracts Services name and the Chemical Abstracts Number and the EPA Registry Name (the EPA standard name), the SRS also includes additional information, such as molecular weight and molecular formula. Additionally, an SRS Internal Tracking Number uniquely identifies each substance, enabling cross-walking between synonyms. EPA is providing a large .ZIP file providing the SRS data in CSV format, and a separate small metadata file in XML containing the field names and definitions.
File Identifier: 0AEA7FA5-98C2-4175-AE3E-E70947456E86
Open/Close section Distribution Information
Access URL https://iaspub.epa.gov/sor_internet/registry/substreg/home/overview/home.do
Download URL https://iaspub.epa.gov/sor_internet/registry/substreg/home/overview/home.do
Open/Close section Constraints
Access Level: Public
License: https://edg.epa.gov/EPA_Data_License.html
Open/Close section Metadata Dates
Date Modified: 2014-01-01
Date Issued: 2014-01-01
Open/Close section Contact Information
Organization: U.S. EPA Office of Environmental Information (OEI)
Contact Person: John Harman, U.S. EPA Office of Environmental Information (OEI)
Email: harman.john@epa.gov
Open/Close section Spatial Domain
Zoom to the metadata envelope
Open/Close section Metadata Reference Information
Landing Page https://iaspub.epa.gov/sor_internet/registry/substreg/home/overview/home.do
Related Documents: https://edg.epa.gov/metadata/catalog/search/resource/details.page?uuid=%7B0AEA7FA5-98C2-4175-AE3E-E70947456E86%7D, https://edg.epa.gov/metadata/rest/document?id=%7B0AEA7FA5-98C2-4175-AE3E-E70947456E86%7D