Carbon Tetrachloride

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Carcinogen

CAS Number: 56-23-5

Carbon Tetrachloride (CAS 56-23-5) 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, 53 facilities have filed TRI Form R disclosures for Carbon Tetrachloride, with a cumulative reported release volume of 704.5K 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 OCCIDENTAL CHEMICAL HOLDING CORP - GEISMAR PLANT in LA at 143.0K 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
704.5K lbs
Number of Facilities
53
Carcinogen
Yes
Persistent Bioaccumulative Toxicant
No

Which facilities release the most of this chemical?

Facilities with the largest reported releases of Carbon Tetrachloride. Up to 50 shown.

# Facility Release (lbs)
1 Occidental Chemical Holding Corp - Geismar Plant 143.0K lbs
2 Occidental Chemical Corp 115.0K lbs
3 Rubicon LLC 99.8K lbs
4 Dover Chemical Corp 93.0K lbs
5 The Chemours Co 47.2K lbs
6 Westlake Vinyls Inc 28.4K lbs
7 Blue Cube Operations LLC - Plaquemine Site 28.3K lbs
8 US Doe Waste Isolation Pilot Plant 25.5K lbs
9 Westlake US 2 LLC 13.7K lbs
10 Freeport_olin Bc 13.2K lbs
11 Reworld Tron Corp 12.3K lbs
12 Basf Corp 11.8K lbs
13 Formosa Plastics Corp Louisiana 11.7K lbs
14 Syngenta Crop Protection LLC Saint Gabriel Facility 10.1K lbs
15 Chemours el Dorado 10.1K lbs
16 Westlake Vinyls Co 9.5K lbs
17 Corteva Agriscience LLC 8.1K lbs
18 Sabic Innovative Plastics US LLC 4.2K lbs
19 Oxy Vinyls LP la Porte Vcm Plant 3.9K lbs
20 Dow Chemical Co Freeport Facility 3.1K lbs
21 Honeywell International Inc-Baton Rouge Plant 3.1K lbs
22 Gb Biosciences LLC 2.3K lbs
23 Westlake Chemicals & Vinyls LLC 1.7K lbs
24 Shintech Plaquemine Plant 1.2K lbs
25 Buzzi Unicem Usa-Cape Girardeau 999 lbs
26 Giant Cement Co 829 lbs
27 Westlake Chemicals & Vinyls LLC 684 lbs
28 Clean Harbors Environmental Services Inc 424 lbs
29 Norlite LLC 321 lbs
30 Clean Harbors el Dorado LLC 191 lbs
31 Occidental Chemical Corp 181 lbs
32 Veolia Es Technical Solutions LLC Port Arthur Facility 110 lbs
33 Clean Harbors Deer Park LLC 96 lbs
34 Calgon Carbon Corp 95 lbs
35 Clean Harbors Aragonite LLC 71 lbs
36 Chemical Solvents Inc--Denison Facility 60 lbs
37 The Dow Chemical Co - Louisiana Operations 58 lbs
38 Keystone Cement Co 49 lbs
39 Holcim Solutions & Products (us) LLC 40 lbs
40 Formosa Plastics Corp Texas 26 lbs
41 US Magnesium LLC 23 lbs
42 Oxy Vinyls LP Deer Park-Vcm Plant 11 lbs
43 Veolia N.a. Inc. 8 lbs
44 Kendrick Plastics 7 lbs
45 Corteva Freeport Operations 5 lbs
46 Evoqua Water Technologies LLC 3 lbs
47 Holcim (us) Inc Holly Hill Plant 2 lbs
48 Eco-Services Operations 2 lbs
49 Heritage Thermal Services 2 lbs
50 Ross Incineration Services Inc 1 lbs

Frequently Asked Questions

What is Carbon Tetrachloride?
Carbon Tetrachloride (CAS Number: 56-23-5) is a chemical tracked by the EPA Toxic Release Inventory (TRI) program. It is classified as a known or suspected carcinogen. 53 facilities in the United States report releasing this chemical to the EPA.
How much Carbon Tetrachloride is released in the U.S.?
U.S. facilities have reported a total of 704.5K lbs of Carbon Tetrachloride releases to the EPA Toxic Release Inventory across 53 facilities. Release quantities are self-reported estimates. This includes releases to air, water, land, and off-site transfers.
Is Carbon Tetrachloride harmful to health?
Carbon Tetrachloride 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 Carbon Tetrachloride?
The largest reported releasers of Carbon Tetrachloride include facilities across multiple states. Release data is self-reported annually to the EPA under the TRI program. View the full list of 53 facilities on this page.
What is the CAS number for Carbon Tetrachloride?
The CAS (Chemical Abstracts Service) Registry Number for Carbon Tetrachloride is 56-23-5. CAS numbers are unique numerical identifiers assigned to every chemical substance described in the open scientific literature. This identifier is used to search scientific databases and regulatory filings.

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.