Chromium Compounds (except for Chromite Ore Mined in the Transvaal Region)

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EPA TRI Category Code: N090

Chromium Compounds (except for Chromite Ore Mined in the Transvaal Region) (EPA TRI Category Code N090) 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, 1,229 facilities have filed TRI Form R disclosures for Chromium Compounds (except for Chromite Ore Mined in the Transvaal Region), with a cumulative reported release volume of 87.3M lbs. The chemical is not flagged as a carcinogen in the TRI classification set. The largest individual disclosure in the current dataset comes from RED DOG OPERATIONS in AK at 8.6M 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
87.3M lbs
Number of Facilities
1,229
Carcinogen
No
Persistent Bioaccumulative Toxicant
No

Which facilities release the most of this chemical?

Facilities with the largest reported releases of Chromium Compounds (except for Chromite Ore Mined in the Transvaal Region). Up to 50 shown.

# Facility Release (lbs)
1 Red Dog Operations 8.6M lbs
2 Chemours Delisle Plant 7.6M lbs
3 International Metals Reclamation Co LLC Inmetco 5.4M lbs
4 Cleveland-Cliffs Steel Corp /butler Works 3.4M lbs
5 Oceanagold Haile Gold Mine 3.1M lbs
6 Prairie State Generating Co 2.9M lbs
7 North American Stainless 2.6M lbs
8 Tronox LLC 2.4M lbs
9 J R Simplot Co Don Sid Ing 1.8M lbs
10 Louisiana Pigment Co LP 1.7M lbs
11 US Steel Corp Midwest Plant 1.7M lbs
12 Simplot Phosphates LLC 1.6M lbs
13 Buick Resource Recycling Facility LLC 1.5M lbs
14 The Shepherd Color Co 1.2M lbs
15 National Beef Leathers LLC 1.2M lbs
16 Clean Harbors Lone Mountain LLC Lone Mountain Facility 1.1M lbs
17 Cleveland-Cliffs Steel Corp 967.8K lbs
18 Cleveland-Cliffs Steel Corp - Mansfield Works 778.4K lbs
19 American Electric Power Amos Plant 763.5K lbs
20 Outokumpu Stainless USA LLC 754.4K lbs
21 Kaiser Aluminum Warrick LLC 724.8K lbs
22 US Ecology Nevada Inc. 597.9K lbs
23 Gibson Generating Station 565.6K lbs
24 Kennecott Utah Copper Smelter & Refinery 555.3K lbs
25 Precoat Metals 544.4K lbs
26 Ozark Mountain Technologies LLC DBA Lmi Aerospace 516.2K lbs
27 Kentucky Utilities Co Ghent Station 486.2K lbs
28 Envirite of Illinois Inc 472.5K lbs
29 Cardinal Plant 457.5K lbs
30 Procter & Gamble Mfg. Co. 446.9K lbs
31 Vickery Environmental Inc. 435.2K lbs
32 Coast Plating Inc 425.1K lbs
33 Tm Deer Park Services LP 422.0K lbs
34 Harrison Power Station 395.9K lbs
35 Spurlock Power Station 390.7K lbs
36 Nucor Steel Hertford County 349.8K lbs
37 Nucor Steel Tuscaloosa Inc 343.1K lbs
38 Duke Energy Progress LLC - Roxboro Steam Electric Plant 342.3K lbs
39 Ddp Specialty Electronic Materials US LLC 331.3K lbs
40 Oak Grove Steam Electric Station 330.7K lbs
41 Pleasants Power Station 323.8K lbs
42 Smc Nye Mine Site 314.7K lbs
43 Wayne Disposal Inc 314.2K lbs
44 Eq Detroit Inc 298.2K lbs
45 Johns Manville 292.9K lbs
46 Pcs Phosphate Co Inc 290.2K lbs
47 Asarco LLC Ray Complex/ Hayden Smelter & Concentrator 285.5K lbs
48 Cleveland-Cliffs Weirton LLC 283.1K lbs
49 Pacificorp Hunter Plant 278.5K lbs
50 Springerville Generating Station 268.8K lbs

Frequently Asked Questions

What is Chromium Compounds (except for Chromite Ore Mined in the Transvaal Region)?
Chromium Compounds (except for Chromite Ore Mined in the Transvaal Region) (EPA TRI Category Code: N090) is a chemical tracked by the EPA Toxic Release Inventory (TRI) program. 1,229 facilities in the United States report releasing this chemical to the EPA.
How much Chromium Compounds (except for Chromite Ore Mined in the Transvaal Region) is released in the U.S.?
U.S. facilities have reported a total of 87.3M lbs of Chromium Compounds (except for Chromite Ore Mined in the Transvaal Region) releases to the EPA Toxic Release Inventory across 1,229 facilities. Release quantities are self-reported estimates. This includes releases to air, water, land, and off-site transfers.
Is Chromium Compounds (except for Chromite Ore Mined in the Transvaal Region) harmful to health?
Chromium Compounds (except for Chromite Ore Mined in the Transvaal Region) 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 Chromium Compounds (except for Chromite Ore Mined in the Transvaal Region)?
The largest reported releasers of Chromium Compounds (except for Chromite Ore Mined in the Transvaal Region) include facilities across multiple states. Release data is self-reported annually to the EPA under the TRI program. View the full list of 1,229 facilities on this page.
Why is Chromium Compounds (except for Chromite Ore Mined in the Transvaal Region) listed under code N090 instead of a CAS number?
N090 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, "Chromium Compounds (except for Chromite Ore Mined in the Transvaal Region)" 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.

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

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.