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Barium and Barium Compounds

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EPA TRI Category Code: N040

Barium and Barium Compounds (EPA TRI Category Code N040) is a chemical tracked by the EPA Toxics Release Inventory (TRI) program under Section 313 of the Emergency Planning and Community Right-to-Know Act. The TRI requires industrial facilities above specified threshold quantities to disclose annual manufacturing, processing, and otherwise-used volumes, along with quantities released to air, water, land, and off-site transfers.

Across the United States, 509 facilities have filed TRI Form R disclosures for Barium and Barium Compounds, with a cumulative reported release volume of 316.2M lbs. The chemical is not flagged as a carcinogen in the TRI classification set. The largest individual disclosure in the current dataset comes from BASIN ELECTRIC ANTELOPE VALLEY STATION in ND at 40.3M lbs.

TRI volumes are self-reported estimates, not measured stack emissions, and each pound counts equally regardless of chemical toxicity, so total pounds should not be equated with total risk. Inclusion of a chemical or facility in the TRI does not itself establish a health hazard; it documents the public right-to-know record. Consult EPA's IRIS (Integrated Risk Information System) and the Agency for Toxic Substances and Disease Registry for health-effect summaries.

Release Summary

Total Releases
316.2M lbs
Number of Facilities
509
Carcinogen
No
Persistent Bioaccumulative Toxicant
No

Which facilities release the most of this chemical?

Facilities with the largest reported releases of Barium and Barium Compounds. Up to 50 shown.

# Facility Release (lbs)
1 Basin Electric Antelope Valley Station 40.3M lbs
2 Colstrip Steam Electric Station 25.7M lbs
3 Minnkota Power Cooperative Inc. Milton R. Young Station 18.1M lbs
4 Basin Electric Laramie River Station 10.9M lbs
5 Midamerican Energy Co Walter Scott Jr Energy Center 7.5M lbs
6 Xcel Energy Sherburne County Generating Plant 6.0M lbs
7 Dte Electric Co - Monroe Power Plant 5.9M lbs
8 Basin Electric Dry Fork Station 4.4M lbs
9 Black Hills Corp - Neil Simpson Complex 3.7M lbs
10 Plum Point Energy Station 3.6M lbs
11 Gavin Power LLC 3.6M lbs
12 Coal Creek Station 3.3M lbs
13 J H Campbell Generating Plant 3.3M lbs
14 Nearman Creek Power Station 3.3M lbs
15 U.S. Tva Shawnee Fossil Plant 3.2M lbs
16 Jeffrey Energy Center 2.8M lbs
17 Miller Steam Plant 2.8M lbs
18 Basin Electric Leland Olds Station 2.8M lbs
19 Public Service Co of Colorado Comanche Station 2.8M lbs
20 Prairie State Generating Co 2.7M lbs
21 American Electric Power Welsh Plant 2.5M lbs
22 Four Corners Steam Electric Station 2.5M lbs
23 Pacificorp Dave Johnston Plant 2.5M lbs
24 Columbia Energy Center 2.4M lbs
25 U.S. Tva Gallatin Fossil Plant 2.4M lbs
26 Midamerican Energy-Louisa Generating Station 2.2M lbs
27 Harrison Power Station 2.1M lbs
28 Sandy Creek Energy Station 2.0M lbs
29 Pacificorp Hunter Plant 1.9M lbs
30 Adm Corn Processing 1.9M lbs
31 La Cygne Generating Station 1.8M lbs
32 Ameren Missouri Labadie Energy Center 1.8M lbs
33 Iatan Generating Station 1.7M lbs
34 Pacificorp Jim Bridger Plant & Bridger Coal Co 1.7M lbs
35 Choctaw Generation LP L.l.l.p. 1.6M lbs
36 Public Service Co of Colorado Hayden Station 1.6M lbs
37 Public Service Co of Colorado Pawnee Station 1.6M lbs
38 Scherer Steam Electric Generating Plant 1.6M lbs
39 Saint Nicholas Cogeneration Project 1.3M lbs
40 Longview Power 1.3M lbs
41 Aes Puerto Rico LP 1.3M lbs
42 Dte Electric Co-Belle River Power Plant 1.3M lbs
43 Newton Energy Center 1.3M lbs
44 Gopher Resource LLC 1.3M lbs
45 Pacificorp Wyodak Plant 1.2M lbs
46 Hecla Ltd Lucky Friday Mine Unit 1.2M lbs
47 Trapper Mining Inc. 1.2M lbs
48 Buick Resource Recycling Facility LLC 1.2M lbs
49 Bonanza Power Plant 1.2M lbs
50 Chemours Johnsonville Plant 1.2M lbs

Frequently Asked Questions

What is Barium and Barium Compounds? ▼
Barium and Barium Compounds (EPA TRI Category Code: N040) is a chemical tracked by the EPA Toxic Release Inventory (TRI) program. 509 facilities in the United States report releasing this chemical to the EPA.
How much Barium and Barium Compounds is released in the U.S.? ▼
U.S. facilities have reported a total of 316.2M lbs of Barium and Barium Compounds releases to the EPA Toxic Release Inventory across 509 facilities. Release quantities are self-reported estimates. This includes releases to air, water, land, and off-site transfers.
Is Barium and Barium Compounds harmful to health? ▼
Barium and Barium Compounds is not classified as a carcinogen in the EPA TRI database. Health effects depend on exposure levels, duration, and route. For specific health questions, consult a toxicologist or your local health agency.
Which facilities release the most Barium and Barium Compounds? ▼
The largest reported releasers of Barium and Barium Compounds include facilities across multiple states. Release data is self-reported annually to the EPA under the TRI program. View the full list of 509 facilities on this page.
Why is Barium and Barium Compounds listed under code N040 instead of a CAS number? ▼
N040 is an EPA TRI Category Code, not a CAS Registry Number. EPA assigns category codes (N-prefix and K-prefix) to chemical groups that share reporting requirements, for example, "Barium and Barium Compounds" covers many distinct compounds aggregated for TRI reporting. Individual constituents may have their own CAS Registry Numbers (e.g., elemental Lead is CAS 7439-92-1), but the group is reported under the single TRI Category Code.

Related Guides

Understanding TRI Data
How the Toxic Release Inventory works
Biggest Polluters in America
Which facilities release the most toxics
How to Check Environmental Quality
Step-by-step guide to checking your local environment

Health Information

Data comes from the EPA Toxic Release Inventory (TRI) program. Release quantities are self-reported by facilities and may represent estimates. The total shown aggregates reports across all facilities and reporting years.

PlainEnviro presents this data without advocacy framing. The presence of a chemical in the TRI database does not by itself indicate a health risk at current exposure levels. For health-related questions about specific chemical exposures, consult your local health agency or a toxicologist.

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Data sourced from the U.S. Environmental Protection Agency (EPA). See our methodology for details. Retrieved and formatted by PlainEnviro Editorial

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the EPA Toxic Release Inventory (TRI). Consult a qualified professional before making decisions based on this data.

Read our methodology - how this data is sourced, computed, and verified.