Arsenic Compounds

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Carcinogen

EPA TRI Category Code: N020

Arsenic Compounds (EPA TRI Category Code N020) 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, 230 facilities have filed TRI Form R disclosures for Arsenic Compounds, with a cumulative reported release volume of 1167.2M lbs. The chemical carries a carcinogen classification in the TRI database, based on assessments from EPA, IARC, or the National Toxicology Program. The largest individual disclosure in the current dataset comes from NEVADA GOLD MINES LLC - GOLDSTRIKE MINES INC in NV at 468.4M 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
1167.2M lbs
Number of Facilities
230
Carcinogen
Yes
Persistent Bioaccumulative Toxicant
No

Which facilities release the most of this chemical?

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

# Facility Release (lbs)
1 Nevada Gold Mines LLC - Goldstrike Mines Inc 468.4M lbs
2 Nevada Gold Mines LLC - Carlin South Area 129.6M lbs
3 Nevada Gold Mines LLC - Turquoise Ridge 58.4M lbs
4 Nevada Gold Mines Llc-Cortez District 23.1M lbs
5 Smoky Valley Common Operation 22.2M lbs
6 Pogo Mine 16.4M lbs
7 Kennecott Utah Copper Smelter & Refinery 5.3M lbs
8 Fort Knox Mine 3.7M lbs
9 Oceanagold Haile Gold Mine 3.1M lbs
10 Nevada Gold Mines LLC - Phoenix Mine 2.6M lbs
11 American Electric Power Amos Plant 1.5M lbs
12 Jerritt Canyon Mine 1.4M lbs
13 Asarco LLC Ray Complex/ Hayden Smelter & Concentrator 1.3M lbs
14 Gibson Generating Station 382.7K lbs
15 Eastman Chemical Co Tennessee Operations 359.1K lbs
16 Cardinal Plant 301.0K lbs
17 Vickery Environmental Inc. 223.8K lbs
18 Harrison Power Station 219.9K lbs
19 Kyger Creek Station 182.9K lbs
20 Humphrey No 7 172.7K lbs
21 Phelps Dodge Copper Products Co 154.6K lbs
22 Springerville Generating Station 151.1K lbs
23 Kennecott Utah Copper Mine Concentrators & Power Plant 144.3K lbs
24 City of Fremont Department of Utilities Lon D Wright Power 135.7K lbs
25 American Electric Power Kammer/mitchell Plant 134.7K lbs
26 Duke Energy Progress LLC - Roxboro Steam Electric Plant 131.9K lbs
27 Buick Resource Recycling Facility LLC 130.7K lbs
28 White Springs Agricultural Chemicals Inc. - Nutrien 127.8K lbs
29 Conemaugh Generating Station 123.1K lbs
30 Pleasants Power Station 122.9K lbs
31 Duke Energy Indiana Inc. Cayuga Generating Station 122.6K lbs
32 Ebensburg Power Co 122.2K lbs
33 Clean Harbors Lone Mountain LLC Lone Mountain Facility 120.5K lbs
34 Colver Green Energy 109.9K lbs
35 Spurlock Power Station 105.4K lbs
36 Kentucky Utilities Co Ghent Station 105.3K lbs
37 Mountaineer Plant 102.6K lbs
38 Prairie State Generating Co 101.3K lbs
39 Mount Storm Power Station 93.4K lbs
40 Oge Energy Corp River Valley Generating Station 93.0K lbs
41 W H Sammis Plant 93.0K lbs
42 San Miguel Electric Cooperative Inc 90.4K lbs
43 Oak Grove Steam Electric Station 90.2K lbs
44 Aes Warrior Run Inc 90.1K lbs
45 Duke Energy Carolinas LLC - Marshall Steam Station 87.4K lbs
46 Duke Energy Indiana Inc. - Edwardsport Igcc 83.5K lbs
47 U.S. Tva Cumberland Fossil Plant 81.1K lbs
48 Big Rivers Electric Corp. Wilson Station 80.1K lbs
49 Wild Boar Mine 80.0K lbs
50 Minnkota Power Cooperative Inc. Milton R. Young Station 79.1K lbs

Frequently Asked Questions

What is Arsenic Compounds?
Arsenic Compounds (EPA TRI Category Code: N020) is a chemical tracked by the EPA Toxic Release Inventory (TRI) program. It is classified as a known or suspected carcinogen. 230 facilities in the United States report releasing this chemical to the EPA.
How much Arsenic Compounds is released in the U.S.?
U.S. facilities have reported a total of 1167.2M lbs of Arsenic Compounds releases to the EPA Toxic Release Inventory across 230 facilities. Release quantities are self-reported estimates. This includes releases to air, water, land, and off-site transfers.
Is Arsenic Compounds harmful to health?
Arsenic Compounds is classified as a known or suspected carcinogen by the EPA, based on evaluations from IARC, NTP, or EPA itself. 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 Arsenic Compounds?
The largest reported releasers of Arsenic Compounds include facilities across multiple states. Release data is self-reported annually to the EPA under the TRI program. View the full list of 230 facilities on this page.
Why is Arsenic Compounds listed under code N020 instead of a CAS number?
N020 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, "Arsenic 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

Carcinogen Classification: This chemical is classified as a known or suspected carcinogen by the EPA under the Toxic Release Inventory program. This classification is based on evaluations by agencies including the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP), and the EPA itself.

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.