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EPA TRI Chemical

Perfluorobutane Sulfonic Acid

CAS Number: 375-73-5

Total releases
439 lbs
Number of facilities
6
Carcinogen
No
PBT substance
No
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According to the EPA Toxics Release Inventory, Perfluorobutane Sulfonic Acid (CAS 375-73-5) is disclosed by 6 Form R facilities totaling 439 lbs of reported releases. TRI pounds are self-reported disclosure totals, not a measured public-health risk score.

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Perfluorobutane Sulfonic Acid (CAS 375-73-5) 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 3M CHEMICAL OPERATIONS' DECATUR FACILITY in AL at 202 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

Perfluorobutane Sulfonic Acid: how the 439 lbs splits

439 lbs across all reported pathways

  • Off-site Transfers151 lbs34.3%
  • Land Disposal125 lbs28.5%
  • Air Releases84 lbs19.2%
  • Water Discharges79 lbs18.1%

Perfluorobutane Sulfonic Acid's 439 lbs Form-R total is MIXED, with off-site transfers making up 34.3% of the bar. Next segment: land disposal at 28.5%.

Trend & Where It's Reported

Reported Release Trend

Between 2022 and 2023, cumulative annual Perfluorobutane Sulfonic Acid releases across all reporting facilities increased by 787% (44 lbs → 394 lbs). Year-to-year swings reflect facility openings/closures and reporting changes as much as underlying activity.

Geographic Concentration

Reporting for Perfluorobutane Sulfonic Acid is concentrated: Alabama accounts for 46.1% of the reported total (1 facility). Next: Idaho.

  • Alabama 202 lbs
  • Idaho 125 lbs
  • Minnesota 94 lbs
  • Illinois 18 lbs
  • Arkansas 0 lbs
Industry Sources

Reporting for Perfluorobutane Sulfonic Acid is highly concentrated by industry: Chemicals facilities account for 50.1% of the reported total (3 facilities). Next: Hazardous Waste.

  • Chemicals 220 lbs
  • Hazardous Waste 125 lbs
  • Computers and Electronic Products 94 lbs

Which facilities release the most of this chemical?

Facilities with the largest reported releases of Perfluorobutane Sulfonic Acid. Up to 50 shown.

# Facility Release (lbs)
1 3M Chemical Operations' Decatur Facility
202 lbs
2 US Ecology Idaho Inc.
125 lbs
3 Skywater Technology Foundry Inc
94 lbs
4 3M Chemical Operations' Cordova Facility
18 lbs
5 Clean Harbors el Dorado LLC
0 lbs
6 Basf Corp - Freeport Site
0 lbs

Frequently Asked Questions

What is Perfluorobutane Sulfonic Acid in the EPA TRI? ▼
Perfluorobutane Sulfonic Acid (CAS Number: 375-73-5) is a chemical tracked by the EPA Toxic Release Inventory (TRI) program. It is not marked as a carcinogen in the TRI classification set. 6 facilities in the United States report releasing this chemical to the EPA.
How much Perfluorobutane Sulfonic Acid is disclosed in U.S. TRI filings? ▼
U.S. facilities have reported a total of 439 lbs of Perfluorobutane Sulfonic Acid releases to the EPA Toxic Release Inventory across 6 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 Perfluorobutane Sulfonic Acid? ▼
Perfluorobutane Sulfonic Acid 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 Perfluorobutane Sulfonic Acid? ▼
3M Chemical Operations' Decatur Facility in AL reports the largest disclosed release of Perfluorobutane Sulfonic Acid in this dataset, at 202 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 6 facilities on this page.
What is the CAS number for Perfluorobutane Sulfonic Acid? ▼
The CAS (Chemical Abstracts Service) Registry Number for Perfluorobutane Sulfonic Acid is 375-73-5. 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.