PlainEnviro

EPA TRI Chemical

Vinylidene Chloride

CAS Number: 75-35-4

Total releases
259.9K lbs
Number of facilities
33
Carcinogen
Yes
PBT substance
No
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Carcinogen

According to the EPA Toxics Release Inventory, Vinylidene Chloride (CAS 75-35-4) is disclosed by 33 Form R facilities totaling 259.9K 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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Vinylidene Chloride (CAS 75-35-4) 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 TRADEBE TREATMENT & RECYCLING LLC in IN at 155.7K 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.

MIXED pathway mix

Vinylidene Chloride: how the 259.9K lbs splits

259.9K lbs across all reported pathways

  • Air Releases144.4K lbs55.6%
  • Off-site Transfers115.4K lbs44.4%
  • Water Discharges94 lbs<0.1%
  • Land Disposal21 lbs<0.1%

Vinylidene Chloride's 259.9K lbs Form-R total is MIXED, with air releases making up 55.6% of the bar. Next segment: off-site transfers at 44.4%.

Trend & Where It's Reported

Reported Release Trend

Between 2019 and 2023, cumulative annual Vinylidene Chloride releases across all reporting facilities decreased by 56% (28.2K lbs → 12.5K lbs). Year-to-year swings reflect facility openings/closures and reporting changes as much as underlying activity.

Geographic Concentration

Reporting for Vinylidene Chloride is highly concentrated: Indiana accounts for 59.9% of the reported total (1 facility). Next: Louisiana.

  • Indiana 155.7K lbs
  • Louisiana 55.6K lbs
  • Kentucky 34.1K lbs
  • Texas 8.4K lbs
  • Michigan 4.1K lbs
Industry Sources

Reporting for Vinylidene Chloride is highly concentrated by industry: Hazardous Waste facilities account for 60.3% of the reported total (11 facilities). Next: Chemicals.

  • Hazardous Waste 156.7K lbs
  • Chemicals 89.5K lbs
  • Electric Utilities 13.8K lbs
  • Nonmetallic Mineral Product 2 lbs

Which facilities release the most of this chemical?

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

# Facility Release (lbs)
1 Tradebe Treatment & Recycling LLC
155.7K lbs
2 Occidental Chemical Holding Corp - Geismar Plant
39.1K lbs
3 Owensboro Specialty Polymers Inc
33.4K lbs
4 Westlake US 2 LLC
13.8K lbs
5 Freeport_olin Bc
8.0K lbs
6 Corteva Agriscience LLC - Midland
2.9K lbs
7 Westlake Vinyls Co
2.0K lbs
8 Sk Saran Americas LLC
874 lbs
9 Trinseo LLC
819 lbs
10 Lubrizol Advanced Materials Inc
723 lbs
11 Westlake Chemicals & Vinyls LLC
596 lbs
12 Clean Harbors Environmental Services Inc
516 lbs
13 Oxy Vinyls LP la Porte Vcm Plant
297 lbs
14 Ddp Specialty Electronic Materials US LLC
275 lbs
15 Clean Harbors el Dorado LLC
259 lbs
16 Aldrich Chemical Co LLC
247 lbs
17 The Dow Chemical Co
122 lbs
18 Clean Harbors Deer Park LLC
95 lbs
19 Shintech Plaquemine Plant
71 lbs
20 Dow Chemical Co Freeport Facility
62 lbs
21 Clean Harbors Aragonite LLC
50 lbs
22 Westlake Vinyls Inc
49 lbs
23 Veolia Es Technical Solutions LLC Port Arthur Facility
24 lbs
24 Westlake Chemicals & Vinyls LLC
18 lbs
25 Occidental Chemical Corp
10 lbs
26 Elemental Environmental Solutions LLC
9 lbs
27 Oxy Vinyls LP Deer Park-Vcm Plant
8 lbs
28 Veolia N.a. Inc.
6 lbs
29 Heritage Thermal Services
5 lbs
30 Norlite LLC
2 lbs
31 Lubrizol
2 lbs
32 Ross Incineration Services Inc
0 lbs
33 Arcwood Environmental - Orange LLC
0 lbs

Frequently Asked Questions

What is Vinylidene Chloride in the EPA TRI? ▼
Vinylidene Chloride (CAS Number: 75-35-4) 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. 33 facilities in the United States report releasing this chemical to the EPA.
How much Vinylidene Chloride is disclosed in U.S. TRI filings? ▼
U.S. facilities have reported a total of 259.9K lbs of Vinylidene Chloride releases to the EPA Toxic Release Inventory across 33 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 Vinylidene Chloride? ▼
Vinylidene Chloride 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 Vinylidene Chloride? ▼
Tradebe Treatment & Recycling LLC in IN reports the largest disclosed release of Vinylidene Chloride in this dataset, at 155.7K lbs. Most reporting facilities for this chemical fall under hazardous waste. Release data is self-reported annually to the EPA under the TRI program. View the full list of 33 facilities on this page.
What is the CAS number for Vinylidene Chloride? ▼
The CAS (Chemical Abstracts Service) Registry Number for Vinylidene Chloride is 75-35-4. 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

Understanding TRI Data
How the Toxic Release Inventory works
Biggest Polluters in America
Which facilities release the most toxics
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.