Silver and Silver Compounds

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EPA TRI Category Code: N740

Silver and Silver Compounds (EPA TRI Category Code N740) 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, 69 facilities have filed TRI Form R disclosures for Silver and Silver Compounds, with a cumulative reported release volume of 2.5M lbs. The chemical is not flagged as a carcinogen in the TRI classification set. The largest individual disclosure in the current dataset comes from CLEAN HARBORS ARAGONITE LLC in UT at 722.3K 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
2.5M lbs
Number of Facilities
69
Carcinogen
No
Persistent Bioaccumulative Toxicant
No

Which facilities release the most of this chemical?

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

# Facility Release (lbs)
1 Clean Harbors Aragonite LLC 722.3K lbs
2 Clean Harbors el Dorado LLC 675.3K lbs
3 Smoky Valley Common Operation 326.4K lbs
4 Clean Harbors Deer Park LLC 302.2K lbs
5 Veolia N.a. Inc. 93.9K lbs
6 Clean Harbors Grassy Mountain LLC 89.4K lbs
7 Ross Incineration Services Inc 64.5K lbs
8 Shell Chemical LP - Martinez Catalyst Plant 39.2K lbs
9 Nevada Gold Mines LLC - Turquoise Ridge 24.3K lbs
10 Reworld Tron Corp 24.1K lbs
11 Veolia Es Technical Solutions L.L.C. 15.6K lbs
12 Gentex Corp Automotive Div 14.4K lbs
13 Freeport-McMoran Miami Inc 13.8K lbs
14 Eq Detroit Inc 13.8K lbs
15 Kennecott Utah Copper Smelter & Refinery 12.8K lbs
16 Wayne Disposal Inc 12.2K lbs
17 U.S. Silver - Idaho Inc 11.2K lbs
18 Rochester Silver Works LLC 5.4K lbs
19 Carestream Health Colorado 4.8K lbs
20 Asahi Refining USA Inc 1.3K lbs
21 Guardian Industries - Carleton 1.3K lbs
22 Kennecott Utah Copper Mine Concentrators & Power Plant 1.0K lbs
23 Eastman Kodak Co Eastman Business Park 760 lbs
24 Coeur Rochester Inc 610 lbs
25 Stratford Metal Finishing Inc 500 lbs
26 Carestream Health Inc 301 lbs
27 Union Carbide Corp Institute Facility 251 lbs
28 Phelps Dodge Copper Products Co 250 lbs
29 Alpha Assembly Solutions 213 lbs
30 Checon LLC 196 lbs
31 Eastman Chemical Co Texas Operations 171 lbs
32 Colt Refining Inc 160 lbs
33 Parker Hannifin Corp Chomerics Div 159 lbs
34 Asarco LLC Amarillo Copper Refinery 126 lbs
35 Energizer Manufacturing Inc 123 lbs
36 Celanese Microcircuits Industries Ltd. 122 lbs
37 Catalyst Refiners Inc 114 lbs
38 Ames Goldsmith Corp 109 lbs
39 Precision Plating Co Inc 96 lbs
40 Basf Corp 82 lbs
41 Calumet Electronics Corp 75 lbs
42 Perfection Plating Inc 74 lbs
43 Ames Advanced Materials Corp 61 lbs
44 Asahi Refining Florida LLC 47 lbs
45 Storm Power Components 42 lbs
46 Materion Advanced Materials Technologies & Services North 40 lbs
47 Gulf Coast Growth Ventures LLC 40 lbs
48 Technic Inc Engineered Powders Div 32 lbs
49 Metalor Technologies USA Corp Refining Div 30 lbs
50 Sauquoit Ind LLC / Noble Biomaterials 22 lbs

Frequently Asked Questions

What is Silver and Silver Compounds?
Silver and Silver Compounds (EPA TRI Category Code: N740) is a chemical tracked by the EPA Toxic Release Inventory (TRI) program. 69 facilities in the United States report releasing this chemical to the EPA.
How much Silver and Silver Compounds is released in the U.S.?
U.S. facilities have reported a total of 2.5M lbs of Silver and Silver Compounds releases to the EPA Toxic Release Inventory across 69 facilities. Release quantities are self-reported estimates. This includes releases to air, water, land, and off-site transfers.
Is Silver and Silver Compounds harmful to health?
Silver and Silver 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 Silver and Silver Compounds?
The largest reported releasers of Silver and Silver Compounds include facilities across multiple states. Release data is self-reported annually to the EPA under the TRI program. View the full list of 69 facilities on this page.
Why is Silver and Silver Compounds listed under code N740 instead of a CAS number?
N740 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, "Silver and Silver 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.