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1,4-Dichlorobenzene

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Carcinogen

CAS Number: 106-46-7

1,4-Dichlorobenzene (CAS 106-46-7) 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, 22 facilities have filed TRI Form R disclosures for 1,4-Dichlorobenzene, with a cumulative reported release volume of 138.7K 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 FORTRON INDUSTRIES LLC in NC at 101.4K 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
138.7K lbs
Number of Facilities
22
Carcinogen
Yes
Persistent Bioaccumulative Toxicant
No

Which facilities release the most of this chemical?

Facilities with the largest reported releases of 1,4-Dichlorobenzene. Up to 50 shown.

# Facility Release (lbs)
1 Fortron Industries LLC 101.4K lbs
2 Solvay Specialty Polymers USA 31.0K lbs
3 Clean Harbors el Dorado LLC 2.6K lbs
4 Willert Home Products 1.3K lbs
5 Clean Harbors Deer Park LLC 613 lbs
6 Clean Harbors Environmental Services Inc 431 lbs
7 Westlake Vinyls Inc 375 lbs
8 Rubicon LLC 331 lbs
9 Fresh Products LLC 270 lbs
10 Dap Global Inc. 149 lbs
11 Veolia Es Technical Solutions LLC Port Arthur Facility 41 lbs
12 Shintech Plaquemine Plant 40 lbs
13 Safety-Kleen Systems Inc. 34 lbs
14 Heritage Thermal Services 17 lbs
15 Norlite LLC 14 lbs
16 Clean Harbors Aragonite LLC 5 lbs
17 Covestro LLC 4 lbs
18 Veolia N.a. Inc. 3 lbs
19 Reworld Tron Corp 0 lbs
20 Arcwood Environmental - Orange LLC 0 lbs
21 Ross Incineration Services Inc 0 lbs
22 Kor-Chem Inc 0 lbs

Frequently Asked Questions

What is 1,4-Dichlorobenzene? ▼
1,4-Dichlorobenzene (CAS Number: 106-46-7) is a chemical tracked by the EPA Toxic Release Inventory (TRI) program. It is classified as a known or suspected carcinogen. 22 facilities in the United States report releasing this chemical to the EPA.
How much 1,4-Dichlorobenzene is released in the U.S.? ▼
U.S. facilities have reported a total of 138.7K lbs of 1,4-Dichlorobenzene releases to the EPA Toxic Release Inventory across 22 facilities. Release quantities are self-reported estimates. This includes releases to air, water, land, and off-site transfers.
Is 1,4-Dichlorobenzene harmful to health? ▼
1,4-Dichlorobenzene 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 1,4-Dichlorobenzene? ▼
The largest reported releasers of 1,4-Dichlorobenzene include facilities across multiple states. Release data is self-reported annually to the EPA under the TRI program. View the full list of 22 facilities on this page.
What is the CAS number for 1,4-Dichlorobenzene? ▼
The CAS (Chemical Abstracts Service) Registry Number for 1,4-Dichlorobenzene is 106-46-7. 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.

Related Guides

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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.

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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.

Read our methodology - how this data is sourced, computed, and verified.