Open Access statistics for Environmental Protection Agency, United States, covering academic research published from 2000 to 2021. Read More.
Open Access Percentage
39%
Total
Publications
18K
Total Open
Publications
6.8K
Total
Citations
702K
Open Access
Percentage
39%
Total
Publications
18K
Total Open
Publications
6.8K
Total
Citations
702K
Breakdown
Publisher Open
8%
Both
15%
Other Platform Open
16%
Closed
61%
Percentage of Open Access over time
Publisher Open
Both
Other Platform Open
Closed
Volume of Open Access over time
Open
Closed
Publisher Open
OA Journal 41%
1.6K
Hybrid 25%
1K
No Guarantees 34%
1.4K
Other Platform Open
Domain 74%
4K
Institution 34%
1.8K
Public 12%
654
Other Internet 8%
411
Preprint 5%
261
Other Platform Locations
Name | Platform Type | Publications |
|---|---|---|
PubMed Central | 4K | |
Europe PMC | 2.9K | |
Semantic Scholar | 542 | |
unl.edu OAI-PMH Repository | 381 | |
University of North Carolina at Chapel Hill - Carolina Digital Repository | 236 | |
U.S. Department of Energy Office of Scientific and Technical Information - OSTI OAI | 163 | |
MDPI | 157 | |
DOI | 135 | |
CiteSeer X | 120 | |
University of California - eScholarship University of California | 99 |
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