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EPA TRI Chemical

Boron Trichloride

CAS Number: 10294-34-5

Total releases
12.9K lbs
Number of facilities
10
Carcinogen
No
PBT substance
No
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According to the EPA Toxics Release Inventory, Boron Trichloride (CAS 10294-34-5) is disclosed by 10 Form R facilities totaling 12.9K lbs of reported releases. TRI pounds are self-reported disclosure totals, not a measured public-health risk score.

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Boron Trichloride (CAS 10294-34-5) 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.

A carcinogen flag, when present on other chemicals in this database, reflects an assessment from EPA, IARC, or the National Toxicology Program rather than a TRI-specific determination. The largest individual disclosure in the current dataset comes from LINDE GAS & EQUIPMENT INC. in OR at 11.9K 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.

AIR pathway mix

Boron Trichloride: how the 12.9K lbs splits

12.9K lbs across all reported pathways

  • Air Releases12.3K lbs95.2%
  • Off-site Transfers623 lbs4.8%

Boron Trichloride's 12.9K lbs Form-R total is AIR, with air releases making up 95.2% of the bar. Next segment: off-site transfers at 4.8%.

Trend & Where It's Reported

Reported Release Trend

Between 2019 and 2023, cumulative annual Boron Trichloride releases across all reporting facilities decreased by 19% (3.0K lbs → 2.4K lbs). Year-to-year swings reflect facility openings/closures and reporting changes as much as underlying activity.

Geographic Concentration

Reporting for Boron Trichloride is highly concentrated: Oregon accounts for 91.7% of the reported total (2 facilities). Next: South Carolina.

  • Oregon 11.9K lbs
  • South Carolina 1.1K lbs
  • Pennsylvania 14 lbs
  • Wisconsin 0 lbs
  • Texas 0 lbs
Industry Sources

Reporting for Boron Trichloride is highly concentrated by industry: Chemicals facilities account for 91.8% of the reported total (5 facilities). Next: Nonmetallic Mineral Product.

  • Chemicals 11.9K lbs
  • Nonmetallic Mineral Product 1.1K lbs
  • Transportation Equipment 0 lbs
  • Computers and Electronic Products 0 lbs

Which facilities release the most of this chemical?

Facilities with the largest reported releases of Boron Trichloride. Up to 50 shown.

# Facility Release (lbs)
1 Linde Gas & Equipment Inc.
11.9K lbs
2 Giant Cement Co
1.1K lbs
3 Air Liquide Electronics U.S. LP
14 lbs
4 Intel Corp-Ronler Acres Campus
0 lbs
5 Emd Acquisition LLC
0 lbs
6 Intel Corp-Ocotillo Campus
0 lbs
7 Samsung Austin Semiconductor
0 lbs
8 Aldrich Chemical Co LLC Teutonia
0 lbs
9 Tiarco Chemical
0 lbs
10 Specialty Materials Inc.
0 lbs

Frequently Asked Questions

What is Boron Trichloride in the EPA TRI? ▼
Boron Trichloride (CAS Number: 10294-34-5) is a chemical tracked by the EPA Toxic Release Inventory (TRI) program. It is not marked as a carcinogen in the TRI classification set. 10 facilities in the United States report releasing this chemical to the EPA.
How much Boron Trichloride is disclosed in U.S. TRI filings? ▼
U.S. facilities have reported a total of 12.9K lbs of Boron Trichloride releases to the EPA Toxic Release Inventory across 10 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 Boron Trichloride? ▼
Boron Trichloride is not marked as a carcinogen in the TRI classification set. 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 Boron Trichloride? ▼
Linde Gas & Equipment Inc. in OR reports the largest disclosed release of Boron Trichloride in this dataset, at 11.9K 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 10 facilities on this page.
What is the CAS number for Boron Trichloride? ▼
The CAS (Chemical Abstracts Service) Registry Number for Boron Trichloride is 10294-34-5. 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

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.