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EPA TRI Chemical

2-Mercaptobenzothiazole

CAS Number: 149-30-4

Total releases
258.5K lbs
Number of facilities
28
Carcinogen
Yes
PBT substance
No
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Carcinogen

According to the EPA Toxics Release Inventory, 2-Mercaptobenzothiazole (CAS 149-30-4) is disclosed by 28 Form R facilities totaling 258.5K lbs of reported releases. The TRI extract marks this chemical with a carcinogen classification flag. TRI pounds are self-reported disclosure totals, not a measured public-health risk score.

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2-Mercaptobenzothiazole (CAS 149-30-4) 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.

The carcinogen flag above reflects an assessment from EPA, the International Agency for Research on Cancer, or the National Toxicology Program, not a TRI-specific determination. The largest individual disclosure in the current dataset comes from COOPER STANDARD AUTOMOTIVE in OH at 184.9K 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.

OFFSITE pathway mix

2-Mercaptobenzothiazole: how the 258.5K lbs splits

258.5K lbs across all reported pathways

  • Off-site Transfers245.8K lbs95.1%
  • Water Discharges7.4K lbs2.9%
  • Air Releases5.3K lbs2.0%

2-Mercaptobenzothiazole's 258.5K lbs Form-R total is OFFSITE, with off-site transfers making up 95.1% of the bar. Next segment: water discharges at 2.9%.

Trend & Where It's Reported

Reported Release Trend

Between 2019 and 2023, cumulative annual 2-Mercaptobenzothiazole releases across all reporting facilities increased by 181% (13.4K lbs → 37.5K lbs). Year-to-year swings reflect facility openings/closures and reporting changes as much as underlying activity.

Geographic Concentration

Reporting for 2-Mercaptobenzothiazole is highly concentrated: Ohio accounts for 72.2% of the reported total (9 facilities). Next: Washington.

  • Ohio 186.7K lbs
  • Washington 21.0K lbs
  • Iowa 18.5K lbs
  • Oklahoma 11.2K lbs
  • Illinois 9.5K lbs
Industry Sources

Reporting for 2-Mercaptobenzothiazole is highly concentrated by industry: Plastics and Rubber facilities account for 82.8% of the reported total (14 facilities). Next: Hazardous Waste.

  • Plastics and Rubber 214.1K lbs
  • Hazardous Waste 21.0K lbs
  • Chemicals 12.0K lbs
  • Miscellaneous Manufacturing 11.2K lbs
  • Textiles 226 lbs

Which facilities release the most of this chemical?

Facilities with the largest reported releases of 2-Mercaptobenzothiazole. Up to 50 shown.

# Facility Release (lbs)
1 Cooper Standard Automotive
184.9K lbs
2 Burlington Environmental LLC
21.0K lbs
3 Henniges Automotive Iowa Inc
18.5K lbs
4 Henniges Automotive Inc
11.2K lbs
5 Emerald Performance Materials LLC
9.3K lbs
6 Henniges Automotive North Carolina Inc
5.2K lbs
7 Garware Fulflex USA Inc.
2.2K lbs
8 Contitech USA Inc.
1.7K lbs
9 Dober Chemical Corp (hazle Township)
1.4K lbs
10 Chem Technologies Ltd.
955 lbs
11 Hoosier Racing Tire Corp
710 lbs
12 Quanex Ig Systems DBA Quanex Custom Mixing
409 lbs
13 Nishikawa Cooper LLC
387 lbs
14 Polymerics Inc
387 lbs
15 Vibracoustic USA Inc. Carmi Mixing Div
228 lbs
16 Textile Rubber and Chemical Company (ptg Group)
226 lbs
17 Flow Polymers LLC
10 lbs
18 Clean Harbors el Dorado LLC
0 lbs
19 Continental Tire the Americas LLC
0 lbs
20 Prochemco Inc.
0 lbs
21 Wincom Inc
0 lbs
22 Akrochem Corp
0 lbs
23 Lanxess Corp Plant 2
0 lbs
24 Lanxess Corp Plant 1
0 lbs
25 Vanderbilt Chemicals Llc-Murray Div
0 lbs
26 Railroad Friction Products Corp
0 lbs
27 Bridgestone Bandag LLC Oxford Plant
0 lbs
28 Pilot Products Inc
0 lbs

Frequently Asked Questions

What is 2-Mercaptobenzothiazole in the EPA TRI? ▼
2-Mercaptobenzothiazole (CAS Number: 149-30-4) is a chemical tracked by the EPA Toxic Release Inventory (TRI) program. The TRI extract marks it with a carcinogen classification flag based on EPA/IARC/NTP listings. 28 facilities in the United States report releasing this chemical to the EPA.
How much 2-Mercaptobenzothiazole is disclosed in U.S. TRI filings? ▼
U.S. facilities have reported a total of 258.5K lbs of 2-Mercaptobenzothiazole releases to the EPA Toxic Release Inventory across 28 facilities. Release quantities are self-reported estimates covering air, water, land, and off-site transfers. They are disclosure totals, not toxicity-weighted harm scores.
How does EPA TRI classify 2-Mercaptobenzothiazole? ▼
2-Mercaptobenzothiazole carries a carcinogen classification flag in the TRI database (drawn from EPA, IARC, or NTP listings). TRI classification flags document inventory listing status; they are not a site-specific exposure or health diagnosis. For health-effect summaries see EPA IRIS and ATSDR toxicological profiles.
Which facilities disclose the most 2-Mercaptobenzothiazole? ▼
Cooper Standard Automotive in OH reports the largest disclosed release of 2-Mercaptobenzothiazole in this dataset, at 184.9K lbs. Most reporting facilities for this chemical fall under plastics and rubber. Release data is self-reported annually to the EPA under the TRI program. View the full list of 28 facilities on this page.
What is the CAS number for 2-Mercaptobenzothiazole? ▼
The CAS (Chemical Abstracts Service) Registry Number for 2-Mercaptobenzothiazole is 149-30-4. 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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How to Check Environmental Quality
Step-by-step guide to checking your local environment

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

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.