EPA TRI Chemical
Zinc (fume or Dust)
CAS Number: 7440-66-6
- Total releases
- 22.9M lbs
- Number of facilities
- 353
- Carcinogen
- No
- PBT substance
- No
According to the EPA Toxics Release Inventory, Zinc (fume or Dust) (CAS 7440-66-6) is disclosed by 353 Form R facilities totaling 22.9M lbs of reported releases. TRI pounds are self-reported disclosure totals, not a measured public-health risk score.
Zinc (fume or Dust) (CAS 7440-66-6) 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 CHEMICAL WASTE MANAGEMENT in AL at 6.0M 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
Zinc (fume or Dust): how the 22.9M lbs splits
22.9M lbs across all reported pathways
- Land Disposal11.5M lbs50.1%
- Off-site Transfers9.8M lbs42.8%
- Air Releases1.6M lbs7.1%
Zinc (fume or Dust)'s 22.9M lbs Form-R total is MIXED, with land disposal making up 50.1% of the bar. Next segment: off-site transfers at 42.8%.
Trend & Where It's Reported
Between 2019 and 2023, cumulative annual Zinc (fume or Dust) releases across all reporting facilities increased by 6% (4.3M lbs → 4.5M lbs). Year-to-year swings reflect facility openings/closures and reporting changes as much as underlying activity.
Reporting for Zinc (fume or Dust) is concentrated: Alabama accounts for 27.1% of the reported total (7 facilities). Next: Ohio.
- Alabama 6.2M lbs
- Ohio 2.6M lbs
- Illinois 2.5M lbs
- California 2.3M lbs
- Wisconsin 2.0M lbs
Reporting for Zinc (fume or Dust) is concentrated by industry: Hazardous Waste facilities account for 49.2% of the reported total (15 facilities). Next: Primary Metals.
- Hazardous Waste 11.3M lbs
- Primary Metals 7.1M lbs
- Electric Utilities 1.6M lbs
- Fabricated Metals 928.0K lbs
- Transportation Equipment 776.7K lbs
Which facilities release the most of this chemical?
Facilities with the largest reported releases of Zinc (fume or Dust). Up to 50 shown.
Frequently Asked Questions
What is Zinc (fume or Dust) in the EPA TRI? ▼
How much Zinc (fume or Dust) is disclosed in U.S. TRI filings? ▼
How does EPA TRI classify Zinc (fume or Dust)? ▼
Which facilities disclose the most Zinc (fume or Dust)? ▼
What is the CAS number for Zinc (fume or Dust)? ▼
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.