Cyanide Compounds

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EPA TRI Category Code: N106

Cyanide Compounds (EPA TRI Category Code N106) 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, 221 facilities have filed TRI Form R disclosures for Cyanide Compounds, with a cumulative reported release volume of 40.3M lbs. The chemical is not flagged as a carcinogen in the TRI classification set. The largest individual disclosure in the current dataset comes from TM DEER PARK SERVICES LP in TX at 8.0M 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
40.3M lbs
Number of Facilities
221
Carcinogen
No
Persistent Bioaccumulative Toxicant
No

Which facilities release the most of this chemical?

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

# Facility Release (lbs)
1 Tm Deer Park Services LP 8.0M lbs
2 Ineos Nitriles USA LLC Green Lake Plant 6.2M lbs
3 Cornerstone Chemical Co LLC 3.4M lbs
4 Nevada Gold Mines LLC - Phoenix Mine 3.1M lbs
5 Ascend Performance Materials-Chocolate Bayou Plant 2.5M lbs
6 Nevada Gold Mines LLC - Carlin South Area 2.3M lbs
7 Ineos Nitriles USA LLC 1.8M lbs
8 Nevada Gold Mines Llc-Cortez District 1.7M lbs
9 Apollo Metals Ltd 1.5M lbs
10 Chemical Waste Management 1.5M lbs
11 Fort Knox Mine 936.8K lbs
12 Elemental Environmental Solutions LLC 679.2K lbs
13 Inv Nylon Chemicals Americas Orange Site 672.2K lbs
14 Nevada Gold Mines LLC - Goldstrike Mines Inc 669.5K lbs
15 Nevada Gold Mines LLC - Turquoise Ridge 451.0K lbs
16 US Ecology Nevada Inc. 449.7K lbs
17 Spurlock Power Station 328.0K lbs
18 Inv Nylon Chemicals Americas Victoria Site 323.8K lbs
19 Clean Harbors Aragonite LLC 282.1K lbs
20 Cleveland-Cliffs Burns Harbor LLC 265.6K lbs
21 Smoky Valley Common Operation 179.0K lbs
22 Jefferson Terminal South LLC 168.5K lbs
23 Century Aluminum of South Carolina 98.0K lbs
24 Uss-Clairton Plant 92.1K lbs
25 US Ecology Vernon Inc. 90.6K lbs
26 Jerritt Canyon Mine 87.0K lbs
27 Chemical Waste Management Inc 78.0K lbs
28 Vickery Environmental Inc. 58.2K lbs
29 Covoro Mining Solutions LLC 57.4K lbs
30 Cleveland-Cliffs Steel LLC 55.4K lbs
31 Westfield Electroplating Co 53.1K lbs
32 Cleveland-Cliffs Weirton LLC 53.1K lbs
33 Henkel US Operations Corp 45.4K lbs
34 Heligear Acquisition Co D/b/a Northstar Aerospace Inc 39.2K lbs
35 Alcoa Warrick Newco LLC 33.4K lbs
36 M.s. Ambrogio N.a. LLC 31.1K lbs
37 Chemical Waste Management - la Ke Charles Facility 27.5K lbs
38 American Nickeloid Co 26.6K lbs
39 Hohman Plating & Manufacturing Inc 20.7K lbs
40 Industrial Connections & Solutions LLC 20.2K lbs
41 Parker Trutec 18.4K lbs
42 Drummond Co Inc Abc Coke Div 18.0K lbs
43 Kennecott Utah Copper Mine Concentrators & Power Plant 15.4K lbs
44 Artazn LLC 15.1K lbs
45 Turbocam Energy Solutions LLC 14.5K lbs
46 Martinez Refining Co LLC 14.2K lbs
47 Coeur Rochester Inc 14.0K lbs
48 Cyanco Co LLC 14.0K lbs
49 Bell Plant 5 13.9K lbs
50 Oceanagold Haile Gold Mine 13.5K lbs

Frequently Asked Questions

What is Cyanide Compounds?
Cyanide Compounds (EPA TRI Category Code: N106) is a chemical tracked by the EPA Toxic Release Inventory (TRI) program. 221 facilities in the United States report releasing this chemical to the EPA.
How much Cyanide Compounds is released in the U.S.?
U.S. facilities have reported a total of 40.3M lbs of Cyanide Compounds releases to the EPA Toxic Release Inventory across 221 facilities. Release quantities are self-reported estimates. This includes releases to air, water, land, and off-site transfers.
Is Cyanide Compounds harmful to health?
Cyanide 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 Cyanide Compounds?
The largest reported releasers of Cyanide Compounds include facilities across multiple states. Release data is self-reported annually to the EPA under the TRI program. View the full list of 221 facilities on this page.
Why is Cyanide Compounds listed under code N106 instead of a CAS number?
N106 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, "Cyanide 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.

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.