Toluene-2,4-Diisocyanate

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Carcinogen

CAS Number: 584-84-9

Toluene-2,4-Diisocyanate (CAS 584-84-9) 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, 71 facilities have filed TRI Form R disclosures for Toluene-2,4-Diisocyanate, with a cumulative reported release volume of 91.9K 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 US ECOLOGY TEXAS INC in TX at 12.6K 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
91.9K lbs
Number of Facilities
71
Carcinogen
Yes
Persistent Bioaccumulative Toxicant
No

Which facilities release the most of this chemical?

Facilities with the largest reported releases of Toluene-2,4-Diisocyanate. Up to 50 shown.

# Facility Release (lbs)
1 US Ecology Texas Inc 12.6K lbs
2 Carpenter Co. 11.0K lbs
3 Ross Incineration Services Inc 10.9K lbs
4 Eq Detroit Inc 10.7K lbs
5 Delta Baytown 9.5K lbs
6 Covestro LLC 9.1K lbs
7 Lear - Hebron Plant 7.9K lbs
8 Syngenta Crop Protection LLC Saint Gabriel Facility 4.3K lbs
9 Ppg Industriesinc-Springdale Complex 2.6K lbs
10 Woodbridge Inoac Technical Products LLC 2.0K lbs
11 Toyota Boshoku Mississippi LLC 2.0K lbs
12 Trelleborg Marine Systems N.a. Inc. 1.3K lbs
13 Third Coast Terminals Pearland 1.2K lbs
14 Fehrer Automotive N.a. LLC 1.2K lbs
15 Sika Mbcc US LLC 1.1K lbs
16 Woodbridge Corp 990 lbs
17 Elite Comfort Solutions LLC 787 lbs
18 Hyundai Transys Georgia Seating System Llc. 538 lbs
19 Macdermid Printing Solutions 389 lbs
20 Tri-Con Industries Ltd 358 lbs
21 Ppg Industries Ohio Inc Circleville Oh 336 lbs
22 Holcim Solutions & Products US LLC 250 lbs
23 Toyota Boshoku Indiana LLC 167 lbs
24 Clean Harbors el Dorado LLC 167 lbs
25 3M Co - Springfield 111 lbs
26 Armaly Sponge Co. 93 lbs
27 Clean Harbors Environmental Services Inc 75 lbs
28 Carpenter Co 74 lbs
29 True Temper Sports Inc 66 lbs
30 Healthcare Sc LLC 48 lbs
31 Coim USA Inc 40 lbs
32 Anderson Development Co 33 lbs
33 Veolia Es Technical Solutions LLC Port Arthur Facility 29 lbs
34 Beynon Sports Surfaces 20 lbs
35 Covestro LLC 20 lbs
36 Carlisle Polyurethane Systems 15 lbs
37 Urethane Systems USA LLC 10 lbs
38 Chestnut Ridge Foam Inc 9 lbs
39 Stockmeier Urethanes USA Inc 8 lbs
40 Allcoat Technology Inc 6 lbs
41 Jh Rhodes Co Inc 6 lbs
42 Premold Corp 5 lbs
43 Lear Corp Farwell Plant 5 lbs
44 Amfine Chemical Corp 4 lbs
45 3M Chemical Operations' Cottage Grove Facility 1 lbs
46 Clean Harbors Deer Park LLC 1 lbs
47 Axalta Coating Systems USA Llc-Mount Clemens Plant 1 lbs
48 Samos Polymers Corp 1 lbs
49 Covestro LLC 1 lbs
50 Eco-Services Operations 0 lbs

Frequently Asked Questions

What is Toluene-2,4-Diisocyanate?
Toluene-2,4-Diisocyanate (CAS Number: 584-84-9) is a chemical tracked by the EPA Toxic Release Inventory (TRI) program. It is classified as a known or suspected carcinogen. 71 facilities in the United States report releasing this chemical to the EPA.
How much Toluene-2,4-Diisocyanate is released in the U.S.?
U.S. facilities have reported a total of 91.9K lbs of Toluene-2,4-Diisocyanate releases to the EPA Toxic Release Inventory across 71 facilities. Release quantities are self-reported estimates. This includes releases to air, water, land, and off-site transfers.
Is Toluene-2,4-Diisocyanate harmful to health?
Toluene-2,4-Diisocyanate 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 Toluene-2,4-Diisocyanate?
The largest reported releasers of Toluene-2,4-Diisocyanate include facilities across multiple states. Release data is self-reported annually to the EPA under the TRI program. View the full list of 71 facilities on this page.
What is the CAS number for Toluene-2,4-Diisocyanate?
The CAS (Chemical Abstracts Service) Registry Number for Toluene-2,4-Diisocyanate is 584-84-9. 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.