EPA TRI Chemical
Chlorobenzene
CAS Number: 108-90-7
- Total releases
- 3.1M lbs
- Number of facilities
- 82
- Carcinogen
- No
- PBT substance
- No
According to the EPA Toxics Release Inventory, Chlorobenzene (CAS 108-90-7) is disclosed by 82 Form R facilities totaling 3.1M lbs of reported releases. TRI pounds are self-reported disclosure totals, not a measured public-health risk score.
Chlorobenzene (CAS 108-90-7) 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 SOLVAY SPECIALTY POLYMERS USA LLC in OH at 1.3M 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.
AIR pathway mix
Chlorobenzene: how the 3.1M lbs splits
3.1M lbs across all reported pathways
- Air Releases2.5M lbs80.6%
- Land Disposal447.3K lbs14.3%
- Off-site Transfers160.0K lbs5.1%
- Water Discharges615 lbs<0.1%
Chlorobenzene's 3.1M lbs Form-R total is AIR, with air releases making up 80.6% of the bar. Next segment: land disposal at 14.3%.
Trend & Where It's Reported
Between 2019 and 2023, cumulative annual Chlorobenzene releases across all reporting facilities decreased by 17% (698.6K lbs → 581.3K lbs). Year-to-year swings reflect facility openings/closures and reporting changes as much as underlying activity.
Reporting for Chlorobenzene is concentrated: Ohio accounts for 40.5% of the reported total (7 facilities). Next: Louisiana.
- Ohio 1.3M lbs
- Louisiana 1.2M lbs
- Georgia 322.2K lbs
- Texas 181.0K lbs
- Wisconsin 57.8K lbs
Reporting for Chlorobenzene is highly concentrated by industry: Chemicals facilities account for 97.0% of the reported total (45 facilities). Next: Hazardous Waste.
- Chemicals 3.0M lbs
- Hazardous Waste 86.4K lbs
- Nonmetallic Mineral Product 8.8K lbs
- Petroleum 50 lbs
- Electric Utilities 7 lbs
Which facilities release the most of this chemical?
Facilities with the largest reported releases of Chlorobenzene. Up to 50 shown.
Frequently Asked Questions
What is Chlorobenzene in the EPA TRI? ▼
How much Chlorobenzene is disclosed in U.S. TRI filings? ▼
How does EPA TRI classify Chlorobenzene? ▼
Which facilities disclose the most Chlorobenzene? ▼
What is the CAS number for Chlorobenzene? ▼
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.