Chloroform

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Carcinogen

CAS Number: 67-66-3

Chloroform (CAS 67-66-3) 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, 113 facilities have filed TRI Form R disclosures for Chloroform, with a cumulative reported release volume of 2.0M 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 CHEMGENES CORP in MA at 455.6K 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
2.0M lbs
Number of Facilities
113
Carcinogen
Yes
Persistent Bioaccumulative Toxicant
No

Which facilities release the most of this chemical?

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

# Facility Release (lbs)
1 Chemgenes Corp 455.6K lbs
2 Westlake US 2 LLC 182.8K lbs
3 Eastman Chemical Co Texas Operations 177.0K lbs
4 Foley Cellulose LLC 128.4K lbs
5 Westlake Vinyls Co 117.4K lbs
6 Occidental Chemical Corp 103.0K lbs
7 Avoca LLC 94.6K lbs
8 Emd Millipore Corp 78.2K lbs
9 Dover Chemical Corp 65.9K lbs
10 Basf Corp 57.2K lbs
11 Formosa Plastics Corp Texas 48.5K lbs
12 Blue Cube Operations LLC - Plaquemine Site 40.9K lbs
13 Dupont Specialty Products USA LLC - Spruance Plant 38.3K lbs
14 Solvay Specialty Polymers USA LLC 35.3K lbs
15 International Paper Georgetown Mill 31.9K lbs
16 Occidental Chemical Holding Corp - Geismar Plant 30.9K lbs
17 Tradebe Treatment & Recycling LLC 28.0K lbs
18 International Paper Riegelwood Mill 27.3K lbs
19 Cargill Inc Corn Milling 26.9K lbs
20 Avanti Polar Lipids Inc 18.1K lbs
21 Freeport_olin Bc 17.8K lbs
22 Arxada LLC 14.6K lbs
23 Formosa Plastics Corp Louisiana 13.3K lbs
24 Tm Deer Park Services LP 10.8K lbs
25 Phenomenex Inc 10.2K lbs
26 Pressure Chemical Co 9.6K lbs
27 Graphic Packaging International LLC 9.0K lbs
28 Buzzi Unicem Usa-Cape Girardeau 8.5K lbs
29 Emerald Services Inc 8.5K lbs
30 Corixa Corp D/b/a Glaxosmithkline Vaccines - Hamilton 8.2K lbs
31 Westlake Vinyls Inc 7.9K lbs
32 Abbvie-North Chicago Facility 7.1K lbs
33 Westlake Chemicals & Vinyls LLC 6.5K lbs
34 Sigma-Aldrich Manufacturing LLC 6.0K lbs
35 Oxy Vinyls LP la Porte Vcm Plant 5.7K lbs
36 Rayonier Performance Fibers Jesup Mill 5.3K lbs
37 Dow Chemical Co Freeport Facility 5.1K lbs
38 Mda Manufacturing Inc 4.7K lbs
39 Westlake Chemicals & Vinyls LLC 4.2K lbs
40 Reworld Tron Corp 4.1K lbs
41 Bayer Cropscience LP - Kc 4.1K lbs
42 Tedia Co LLC 3.8K lbs
43 Covestro LLC 3.2K lbs
44 Amvac Chemical Co 3.2K lbs
45 Clean Harbors Environmental Services Inc 2.6K lbs
46 Clean Harbors el Dorado LLC 2.3K lbs
47 Chemours Louisville Plant 2.3K lbs
48 The Chemours Co 2.2K lbs
49 Shintech Plaquemine Plant 2.1K lbs
50 Aldrich Chemical Co LLC 1.9K lbs

Frequently Asked Questions

What is Chloroform?
Chloroform (CAS Number: 67-66-3) is a chemical tracked by the EPA Toxic Release Inventory (TRI) program. It is classified as a known or suspected carcinogen. 113 facilities in the United States report releasing this chemical to the EPA.
How much Chloroform is released in the U.S.?
U.S. facilities have reported a total of 2.0M lbs of Chloroform releases to the EPA Toxic Release Inventory across 113 facilities. Release quantities are self-reported estimates. This includes releases to air, water, land, and off-site transfers.
Is Chloroform harmful to health?
Chloroform 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 Chloroform?
The largest reported releasers of Chloroform include facilities across multiple states. Release data is self-reported annually to the EPA under the TRI program. View the full list of 113 facilities on this page.
What is the CAS number for Chloroform?
The CAS (Chemical Abstracts Service) Registry Number for Chloroform is 67-66-3. 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.