PlainEnviro

Barium Compounds (except for Barium Sulfate (cas No. 7727-43-7))

Verify at EPA TRI →

EPA TRI Category Code: N040

Barium Compounds (except for Barium Sulfate (cas No. 7727-43-7)) (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, 697 facilities have filed TRI Form R disclosures for Barium Compounds (except for Barium Sulfate (cas No. 7727-43-7)), with a cumulative reported release volume of 585.3M lbs. The chemical is not flagged as a carcinogen in the TRI classification set. The largest individual disclosure in the current dataset comes from HECLA GREENS CREEK MINING CO in AK at 270.6M 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
585.3M lbs
Number of Facilities
697
Carcinogen
No
Persistent Bioaccumulative Toxicant
No

Which facilities release the most of this chemical?

Facilities with the largest reported releases of Barium Compounds (except for Barium Sulfate (cas No. 7727-43-7)). Up to 50 shown.

# Facility Release (lbs)
1 Hecla Greens Creek Mining Co 270.6M lbs
2 Xcel Energy Sherburne County Generating Plant 10.6M lbs
3 Colstrip Steam Electric Station 10.0M lbs
4 Springerville Generating Station 9.3M lbs
5 Boswell Energy Center 9.2M lbs
6 Omaha Public Power District Nebraska City Station 7.9M lbs
7 Dte Electric Co-Belle River Power Plant 6.3M lbs
8 Coal Creek Station 5.9M lbs
9 Associated Electric Cooperative Inc New Madrid Power Plant 5.7M lbs
10 J H Campbell Generating Plant 5.5M lbs
11 Dte Electric Co - Monroe Power Plant 5.4M lbs
12 U.S. Tva Shawnee Fossil Plant 5.2M lbs
13 Limestone Electric Generating Station 5.0M lbs
14 W.a. Parish Electric Generating Station 4.7M lbs
15 Minnkota Power Cooperative Inc. Milton R. Young Station 4.6M lbs
16 Weston Power Plant 4.6M lbs
17 Pacificorp Dave Johnston Plant 4.5M lbs
18 Public Service Co of Colorado Comanche Station 4.5M lbs
19 Martin Lake Steam Electric Station & Lignite Mine 4.2M lbs
20 Sandy Creek Energy Station 4.2M lbs
21 Freeport-McMoran Miami Inc 4.2M lbs
22 Prairie State Generating Co 4.2M lbs
23 Jeffrey Energy Center 3.9M lbs
24 Oak Grove Steam Electric Station 3.8M lbs
25 Rockport Plant 3.8M lbs
26 San Miguel Electric Cooperative Inc 3.8M lbs
27 American Electric Power Amos Plant 3.7M lbs
28 Iatan Generating Station 3.6M lbs
29 Otter Tail Power Co Coyote Station 3.0M lbs
30 Ameren Missouri Labadie Energy Center 3.0M lbs
31 Pacificorp Jim Bridger Plant & Bridger Coal Co 3.0M lbs
32 Black Hills Corp - Neil Simpson Complex 2.9M lbs
33 Columbia Energy Center 2.9M lbs
34 U.S. Tva Gallatin Fossil Plant 2.8M lbs
35 Edwards Power Station 2.7M lbs
36 Public Service Co of Colorado Pawnee Station 2.6M lbs
37 La Cygne Generating Station 2.6M lbs
38 Four Corners Steam Electric Station 2.5M lbs
39 Thomas Hill Energy Center 2.4M lbs
40 Holcomb Unit 1 2.4M lbs
41 Pacificorp Hunter Plant 2.4M lbs
42 Cardinal Plant 2.3M lbs
43 Miller Steam Plant 2.3M lbs
44 Plum Point Energy Station 2.3M lbs
45 San Juan Generating Station 2.2M lbs
46 Public Service Co of Colorado Hayden Station 2.1M lbs
47 Pacificorp Wyodak Plant 2.0M lbs
48 Nipsco Michigan City Generating Station 2.0M lbs
49 Trapper Mining Inc. 2.0M lbs
50 Tri-State Generation & Transmission-Craig Station 2.0M lbs

Frequently Asked Questions

What is Barium Compounds (except for Barium Sulfate (cas No. 7727-43-7))? ▼
Barium Compounds (except for Barium Sulfate (cas No. 7727-43-7)) (EPA TRI Category Code: N040) is a chemical tracked by the EPA Toxic Release Inventory (TRI) program. 697 facilities in the United States report releasing this chemical to the EPA.
How much Barium Compounds (except for Barium Sulfate (cas No. 7727-43-7)) is released in the U.S.? ▼
U.S. facilities have reported a total of 585.3M lbs of Barium Compounds (except for Barium Sulfate (cas No. 7727-43-7)) releases to the EPA Toxic Release Inventory across 697 facilities. Release quantities are self-reported estimates. This includes releases to air, water, land, and off-site transfers.
Is Barium Compounds (except for Barium Sulfate (cas No. 7727-43-7)) harmful to health? ▼
Barium Compounds (except for Barium Sulfate (cas No. 7727-43-7)) 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 Compounds (except for Barium Sulfate (cas No. 7727-43-7))? ▼
The largest reported releasers of Barium Compounds (except for Barium Sulfate (cas No. 7727-43-7)) include facilities across multiple states. Release data is self-reported annually to the EPA under the TRI program. View the full list of 697 facilities on this page.
Why is Barium Compounds (except for Barium Sulfate (cas No. 7727-43-7)) 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 Compounds (except for Barium Sulfate (cas No. 7727-43-7))" 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.

Related

Browse all → | Rankings →
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.