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EPA TRI Chemical

1,2-Dichloropropane

CAS Number: 78-87-5

Total releases
86.2K lbs
Number of facilities
15
Carcinogen
Yes
PBT substance
No
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Carcinogen

According to the EPA Toxics Release Inventory, 1,2-Dichloropropane (CAS 78-87-5) is disclosed by 15 Form R facilities totaling 86.2K 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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1,2-Dichloropropane (CAS 78-87-5) 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 SOLENIS LLC in VA at 29.7K 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.

AIR pathway mix

1,2-Dichloropropane: how the 86.2K lbs splits

86.2K lbs across all reported pathways

  • Air Releases81.4K lbs94.4%
  • Water Discharges4.0K lbs4.6%
  • Land Disposal486 lbs0.6%
  • Off-site Transfers375 lbs0.4%

1,2-Dichloropropane's 86.2K lbs Form-R total is AIR, with air releases making up 94.4% of the bar. Next segment: water discharges at 4.6%.

Trend & Where It's Reported

Reported Release Trend

Between 2019 and 2023, cumulative annual 1,2-Dichloropropane releases across all reporting facilities decreased by 13% (18.7K lbs → 16.2K lbs). Year-to-year swings reflect facility openings/closures and reporting changes as much as underlying activity.

Geographic Concentration

Reporting for 1,2-Dichloropropane is concentrated: Texas accounts for 32.8% of the reported total (3 facilities). Next: Virginia.

  • Texas 28.3K lbs
  • Virginia 25.9K lbs
  • West Virginia 23.3K lbs
  • Louisiana 7.7K lbs
  • Kentucky 1.1K lbs
Industry Sources

Reporting for 1,2-Dichloropropane is highly concentrated by industry: Chemicals facilities account for 100.0% of the reported total (10 facilities). Next: Nonmetallic Mineral Product.

  • Chemicals 86.2K lbs
  • Nonmetallic Mineral Product 4 lbs
  • Hazardous Waste 3 lbs

Which facilities release the most of this chemical?

Facilities with the largest reported releases of 1,2-Dichloropropane. Up to 50 shown.

# Facility Release (lbs)
1 Solenis LLC
29.7K lbs
2 Icl-Ip America Inc
23.3K lbs
3 Dow Chemical Co Freeport Facility
21.0K lbs
4 Freeport_olin Bc
7.3K lbs
5 The Dow Chemical Co - Louisiana Operations
5.3K lbs
6 Blue Cube Operations LLC - Plaquemine Site
2.0K lbs
7 Calgon Carbon Corp
1.1K lbs
8 Occidental Chemical Holding Corp - Geismar Plant
411 lbs
9 The Dow Chemical Co
25 lbs
10 Ash Grove Cement
4 lbs
11 Clean Harbors Deer Park LLC
2 lbs
12 Clean Harbors el Dorado LLC
0 lbs
13 Norlite LLC
0 lbs
14 Heritage Thermal Services
0 lbs
15 Westlake Chemicals & Vinyls LLC
0 lbs

Frequently Asked Questions

What is 1,2-Dichloropropane in the EPA TRI? ▼
1,2-Dichloropropane (CAS Number: 78-87-5) 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. 15 facilities in the United States report releasing this chemical to the EPA.
How much 1,2-Dichloropropane is disclosed in U.S. TRI filings? ▼
U.S. facilities have reported a total of 86.2K lbs of 1,2-Dichloropropane releases to the EPA Toxic Release Inventory across 15 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 1,2-Dichloropropane? ▼
1,2-Dichloropropane 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 1,2-Dichloropropane? ▼
Solenis LLC in VA reports the largest disclosed release of 1,2-Dichloropropane in this dataset, at 29.7K lbs. Most reporting facilities for this chemical fall under chemicals. Release data is self-reported annually to the EPA under the TRI program. View the full list of 15 facilities on this page.
What is the CAS number for 1,2-Dichloropropane? ▼
The CAS (Chemical Abstracts Service) Registry Number for 1,2-Dichloropropane is 78-87-5. 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

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.