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

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EPA TRI Category Code: N090

Chromium and 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, 1,026 facilities have filed TRI Form R disclosures for Chromium and Chromium Compounds(except for Chromite Ore Mined in the Transvaal Region), with a cumulative reported release volume of 145.3M lbs. The chemical is not flagged as a carcinogen in the TRI classification set. The largest individual disclosure in the current dataset comes from CHEMICAL WASTE MANAGEMENT in AL at 7.5M 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
145.3M lbs
Number of Facilities
1,026
Carcinogen
No
Persistent Bioaccumulative Toxicant
No

Which facilities release the most of this chemical?

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

# Facility Release (lbs)
1 Chemical Waste Management 7.5M lbs
2 Outokumpu Stainless USA LLC 7.4M lbs
3 Fort Knox Mine 7.2M lbs
4 Red Dog Operations 6.2M lbs
5 Energysolutions LLC 5.0M lbs
6 North American Stainless 4.2M lbs
7 Chemours Johnsonville Plant 4.0M lbs
8 National Beef Leathers LLC 3.4M lbs
9 Nevada Gold Mines LLC - Carlin South Area 2.7M lbs
10 Nevada Gold Mines LLC - Turquoise Ridge 2.7M lbs
11 Clean Harbors el Dorado LLC 2.6M lbs
12 Chemours Delisle Plant 2.6M lbs
13 P4 Production LLC 2.5M lbs
14 Uss Gary Works 2.4M lbs
15 American Chrome & Chemicals 2.3M lbs
16 Clean Harbors Aragonite LLC 2.1M lbs
17 Prairie State Generating Co 2.0M lbs
18 US Ecology Texas Inc 2.0M lbs
19 Envirite of Ohio Inc 1.9M lbs
20 Tronox LLC 1.7M lbs
21 Nucor Steel-Berkeley 1.6M lbs
22 Eq Detroit Inc 1.6M lbs
23 Nevada Gold Mines LLC - Goldstrike Mines Inc 1.6M lbs
24 Freeport-McMoran Miami Inc 1.5M lbs
25 Vickery Environmental Inc. 1.4M lbs
26 Freeport-McMoran Bagdad Inc 1.4M lbs
27 Corhart Refractories 1.4M lbs
28 Georgia Mineral Operations 1.4M lbs
29 Nevada Gold Mines LLC - Phoenix Mine 1.3M lbs
30 Clean Harbors Lone Mountain LLC Lone Mountain Facility 1.3M lbs
31 Envirite of Pennsylvania Inc 1.2M lbs
32 Chemical Waste Management - la Ke Charles Facility 1.2M lbs
33 Ati Flat Rolled Products Holdings LLC 1.2M lbs
34 Cleveland-Cliffs Burns Harbor LLC 1.1M lbs
35 Pcs Phosphate Co Inc 1.1M lbs
36 Clean Harbors Deer Park LLC 1.0M lbs
37 Clean Earth of North Jersey Inc 945.0K lbs
38 Eastman Chemical Co Tennessee Operations 904.9K lbs
39 Cleveland-Cliffs Steel Corp Dearborn Works 899.3K lbs
40 Clean Harbors Environmental Services Inc 882.7K lbs
41 US Ecology Nevada Inc. 782.1K lbs
42 Wayne Disposal Inc 753.7K lbs
43 Gavin Power LLC 737.2K lbs
44 Kennecott Utah Copper Smelter & Refinery 707.7K lbs
45 Coffeyville Resources Nitrogen Fertilizers LLC 696.3K lbs
46 Procter & Gamble Mfg. Co. 692.5K lbs
47 Alcoa Warrick Newco LLC 615.8K lbs
48 Envirite of Illinois Inc 601.7K lbs
49 Ozark Mountain Technologies LLC DBA Lmi Aerospace 571.7K lbs
50 Clean Harbors Baton Rouge LLC 568.4K lbs

Frequently Asked Questions

What is Chromium and Chromium Compounds(except for Chromite Ore Mined in the Transvaal Region)?
Chromium and 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. 1,026 facilities in the United States report releasing this chemical to the EPA.
How much Chromium and 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 145.3M lbs of Chromium and Chromium Compounds(except for Chromite Ore Mined in the Transvaal Region) releases to the EPA Toxic Release Inventory across 1,026 facilities. Release quantities are self-reported estimates. This includes releases to air, water, land, and off-site transfers.
Is Chromium and Chromium Compounds(except for Chromite Ore Mined in the Transvaal Region) harmful to health?
Chromium and 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 and Chromium Compounds(except for Chromite Ore Mined in the Transvaal Region)?
The largest reported releasers of Chromium and 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 1,026 facilities on this page.
Why is Chromium and 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 and 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.