EPA TRI Chemical
Antimony
CAS Number: 7440-36-0
- Total releases
- 2.8M lbs
- Number of facilities
- 116
- Carcinogen
- No
- PBT substance
- No
According to the EPA Toxics Release Inventory, Antimony (CAS 7440-36-0) is disclosed by 116 Form R facilities totaling 2.8M lbs of reported releases. TRI pounds are self-reported disclosure totals, not a measured public-health risk score.
Antimony (CAS 7440-36-0) 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 SANDERS LEAD CO INC. in AL at 1.9M 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
Antimony: how the 2.8M lbs splits
2.8M lbs across all reported pathways
- Land Disposal2.2M lbs81.0%
- Off-site Transfers506.4K lbs18.4%
- Air Releases16.6K lbs0.6%
- Water Discharges781 lbs<0.1%
Antimony's 2.8M lbs Form-R total is LAND, with land disposal making up 81.0% of the bar. Next segment: off-site transfers at 18.4%.
Trend & Where It's Reported
Between 2019 and 2023, cumulative annual Antimony releases across all reporting facilities decreased by 12% (618.8K lbs → 542.4K lbs). Year-to-year swings reflect facility openings/closures and reporting changes as much as underlying activity.
Reporting for Antimony is highly concentrated: Alabama accounts for 70.7% of the reported total (5 facilities). Next: Nevada.
- Alabama 1.9M lbs
- Nevada 222.7K lbs
- Minnesota 107.0K lbs
- South Carolina 90.0K lbs
- Florida 75.0K lbs
Reporting for Antimony is highly concentrated by industry: Primary Metals facilities account for 78.3% of the reported total (24 facilities). Next: Hazardous Waste.
- Primary Metals 2.2M lbs
- Hazardous Waste 373.5K lbs
- Fabricated Metals 86.8K lbs
- Plastics and Rubber 46.5K lbs
- Chemicals 30.3K lbs
Which facilities release the most of this chemical?
Facilities with the largest reported releases of Antimony. Up to 50 shown.
Frequently Asked Questions
What is Antimony in the EPA TRI? ▼
How much Antimony is disclosed in U.S. TRI filings? ▼
How does EPA TRI classify Antimony? ▼
Which facilities disclose the most Antimony? ▼
What is the CAS number for Antimony? ▼
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.
Related
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.