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EPA TRI Chemical

Perfluorooctyl Iodide

CAS Number: 507-63-1

Total releases
19.9K lbs
Number of facilities
3
Carcinogen
No
PBT substance
No
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According to the EPA Toxics Release Inventory, Perfluorooctyl Iodide (CAS 507-63-1) is disclosed by 3 Form R facilities totaling 19.9K lbs of reported releases. TRI pounds are self-reported disclosure totals, not a measured public-health risk score.

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Perfluorooctyl Iodide (CAS 507-63-1) 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 US ECOLOGY IDAHO INC. in ID at 18.9K 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.

LAND pathway mix

Perfluorooctyl Iodide: how the 19.9K lbs splits

19.9K lbs across all reported pathways

  • Land Disposal18.9K lbs95.2%
  • Air Releases883 lbs4.4%
  • Water Discharges75 lbs0.4%

Perfluorooctyl Iodide's 19.9K lbs Form-R total is LAND, with land disposal making up 95.2% of the bar. Next segment: air releases at 4.4%.

Trend & Where It's Reported

Reported Release Trend

Between 2021 and 2023, cumulative annual Perfluorooctyl Iodide releases across all reporting facilities decreased by 14% (5.9K lbs → 5.1K lbs). Year-to-year swings reflect facility openings/closures and reporting changes as much as underlying activity.

Geographic Concentration

Reporting for Perfluorooctyl Iodide is highly concentrated: Idaho accounts for 95.2% of the reported total (1 facility). Next: New Jersey.

  • Idaho 18.9K lbs
  • New Jersey 597 lbs
  • West Virginia 360 lbs
Industry Sources

Reporting for Perfluorooctyl Iodide is highly concentrated by industry: Hazardous Waste facilities account for 95.2% of the reported total (1 facility). Next: Chemicals.

  • Hazardous Waste 18.9K lbs
  • Chemicals 957 lbs

Which facilities release the most of this chemical?

Facilities with the largest reported releases of Perfluorooctyl Iodide. Up to 50 shown.

# Facility Release (lbs)
1 US Ecology Idaho Inc.
18.9K lbs
2 Chemours Chambers Works
621 lbs
3 Chemours Washington Works
360 lbs

Frequently Asked Questions

What is Perfluorooctyl Iodide in the EPA TRI? ▼
Perfluorooctyl Iodide (CAS Number: 507-63-1) is a chemical tracked by the EPA Toxic Release Inventory (TRI) program. It is not marked as a carcinogen in the TRI classification set. 3 facilities in the United States report releasing this chemical to the EPA.
How much Perfluorooctyl Iodide is disclosed in U.S. TRI filings? ▼
U.S. facilities have reported a total of 19.9K lbs of Perfluorooctyl Iodide releases to the EPA Toxic Release Inventory across 3 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 Perfluorooctyl Iodide? ▼
Perfluorooctyl Iodide 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 Perfluorooctyl Iodide? ▼
US Ecology Idaho Inc. in ID reports the largest disclosed release of Perfluorooctyl Iodide in this dataset, at 18.9K 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 3 facilities on this page.
What is the CAS number for Perfluorooctyl Iodide? ▼
The CAS (Chemical Abstracts Service) Registry Number for Perfluorooctyl Iodide is 507-63-1. 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.