U.S. ENVIRONMENTAL PROTECTION AGENCY

For Conference Use Only

Publishing EPA Registry Content as Linked Open Data

Michael Pendleton

Office of Environmental Information

U.S. Environmental Protection Agency

Ecoinformatics Linked Open Data Webinar

December 6-7, 2010

U.S. ENVIRONMENTAL PROTECTION AGENCY

For Conference Use Only Slide 2

Overview

• System of Registries

• Substance Registry

• Registries and Linked Open Data

U.S. ENVIRONMENTAL PROTECTION AGENCY

For Conference Use Only Slide 3

EPA’s System of Registries

www.epa.gov/sor

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For Conference Use Only Slide 4

Substance Registry - Background

• Approximately 100,000 substance records• Objectives:

– One-stop for substance metadata– Support two data standards

• Chemical Identification• Biological Taxonomy

– Enable cross-walk of substance identification• Many EPA programs and environmental statutes• Many substances tracked or regulated• Multiple names used for each substance

U.S. ENVIRONMENTAL PROTECTION AGENCY

For Conference Use Only Slide 5

Substance Registry Contents

• Programmatic information– Statutes, EPA systems, other sources that track or

regulate substances– Synonyms used by those sources– Program-specific characteristics

• E.g., program identifiers, reporting end date

• Fact sheets and links to additional health and safety information about the substance

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For Conference Use Only Slide 604/10/23 6

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For Conference Use Only Slide 14

Data.gov (US) and EPA

• EPA has long history publishing data

• Developing EPA Data.gov guidance and procedures

• Data.gov is focused on high value datasets– Facility Registry – uniquely identify places of

environmental interest– Substance Registry – uniquely identify substances we

regulate

U.S. ENVIRONMENTAL PROTECTION AGENCY

For Conference Use Only Slide 15

Next Steps

• Publish FRS and SRS content as linked open data– Persistent URI strategy, versioning, provenance, other

metadata

• Linked open data demonstrations– Focus on use of FRS and SRS content

• Guidance for publishing datasets as linked open data