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EPA TRI Chemical

Polybrominated Biphenyls

EPA TRI Category Code: N575

Total releases
8.6K lbs
Number of facilities
2
Carcinogen
Yes
PBT substance
No
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Carcinogen

According to the EPA Toxics Release Inventory, Polybrominated Biphenyls (EPA TRI Category Code N575) is disclosed by 2 Form R facilities totaling 8.6K 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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Polybrominated Biphenyls (EPA TRI Category Code N575) 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 GERDAU LONG STEEL NORTH AMERICA - JACKSON MILL in TN at 8.6K 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

Polybrominated Biphenyls: how the 8.6K lbs splits

8.6K lbs across all reported pathways

  • Land Disposal8.6K lbs100.0%

Polybrominated Biphenyls's 8.6K lbs Form-R total is LAND, with land disposal making up 100.0% of the bar. Off-site transfers stay separate from air, water, and land releases.

Trend & Where It's Reported

Reported Release Trend

Between 2019 and 2023, cumulative annual Polybrominated Biphenyls releases across all reporting facilities increased by 25% (1.4K lbs → 1.8K lbs). Year-to-year swings reflect facility openings/closures and reporting changes as much as underlying activity.

Geographic Concentration

Reporting for Polybrominated Biphenyls is highly concentrated: Tennessee accounts for 100.0% of the reported total (1 facility). Next: Michigan.

  • Tennessee 8.6K lbs
  • Michigan 0 lbs
Industry Sources

Reporting for Polybrominated Biphenyls is highly concentrated by industry: Primary Metals facilities account for 100.0% of the reported total (1 facility). Next: Paper.

  • Primary Metals 8.6K lbs
  • Paper 0 lbs

Which facilities release the most of this chemical?

Facilities with the largest reported releases of Polybrominated Biphenyls. Up to 50 shown.

# Facility Release (lbs)
1 Gerdau Long Steel North America - Jackson Mill
8.6K lbs
2 Westrock Co
0 lbs

Frequently Asked Questions

What is Polybrominated Biphenyls in the EPA TRI? ▼
Polybrominated Biphenyls (EPA TRI Category Code: N575) 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. 2 facilities in the United States report releasing this chemical to the EPA.
How much Polybrominated Biphenyls is disclosed in U.S. TRI filings? ▼
U.S. facilities have reported a total of 8.6K lbs of Polybrominated Biphenyls releases to the EPA Toxic Release Inventory across 2 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 Polybrominated Biphenyls? ▼
Polybrominated Biphenyls 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 Polybrominated Biphenyls? ▼
Gerdau Long Steel North America - Jackson Mill in TN reports the largest disclosed release of Polybrominated Biphenyls in this dataset, at 8.6K lbs. Most reporting facilities for this chemical fall under primary metals. Release data is self-reported annually to the EPA under the TRI program. View the full list of 2 facilities on this page.
Why is Polybrominated Biphenyls listed under code N575 instead of a CAS number? ▼
N575 is an EPA TRI Category Code, not a CAS Registry Number. EPA assigns category codes (N-prefix and K-prefix) to chemical groups that share reporting requirements, for example, "Polybrominated Biphenyls" covers many distinct compounds aggregated for TRI reporting. Individual constituents may have their own CAS Registry Numbers (e.g., elemental Lead is CAS 7439-92-1), but the group is reported under the single TRI Category Code.

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.