Environmental Protection Agency

Environmental Protection Agency

The Environmental Protection Agency is an independent agency of the United States government tasked with environmental protection matters. President Richard Nixon proposed the establishment of EPA on July 9, 1970; it began operation on December 2, 1970, after Nixon signed an executive order. Derived from Wikipedia licensed CC-BY-SA.

Open Access statistics for Environmental Protection Agency, United States, covering academic research published from 2000 to 2024. Read More.


Open Access Percentage

44%


Total
Publications

24K


Total Open
Publications

10K


Total
Citations

1.2M


Open Access
Percentage

44%


Total
Publications

24K


Total Open
Publications

10K


Total
Citations

1.2M

Wikipedia

Website

download

Breakdown

12% 19% 14% 55%

Publisher Open

12%

Both

19%

Other Platform Open

14%

Closed

55%

Percentage of Open Access over time

0%10%20%30%40%50%60%70%80%90%100%
2000200120022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024

Publisher Open

Both

Other Platform Open

Closed

Volume of Open Access over time

01002003004005006007008009001k1.1kTotal Publications
2000200120022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024

Open

Closed

Publisher Open

34%OA Journal

OA Journal 34%

2.4K

Hybrid 33%

2.4K

No Guarantees 33%

2.4K

Other Platform Open

Domain 79%

6.1K

Institution 21%

1.6K

Other Internet 17%

1.3K

Public 11%

812

Preprint 3%

202

Other Platform Locations

Name

Platform Type

Publications

PubMed Central
Domain
6K
Europe PMC
Domain
3.1K
Semantic Scholar
Public
656
DOI
Other Internet
545
University of North Carolina at Chapel Hill - Carolina Digital Repository
Institution
290
U.S. Department of Energy Office of Scientific and Technical Information - OSTI OAI
Institution
271
California Digital Library - eScholarship
Other Internet
181
University of California - eScholarship University of California
Institution
162
National Oceanic & Atmospheric Administration - NOAA Institutional Repository
Other Internet
159
Unknown Repository
Other Internet
140
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Data updated 7 April 2025