EPA TRI Chemical
1,2,4-Trimethylbenzene
CAS Number: 95-63-6
- Total releases
- 22.9M lbs
- Number of facilities
- 1,606
- Carcinogen
- No
- PBT substance
- No
According to the EPA Toxics Release Inventory, 1,2,4-Trimethylbenzene (CAS 95-63-6) is disclosed by 1,606 Form R facilities totaling 22.9M lbs of reported releases. TRI pounds are self-reported disclosure totals, not a measured public-health risk score.
1,2,4-Trimethylbenzene (CAS 95-63-6) 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 GM TRUCK GROUP FORT WAYNE ASSEMBLY in IN at 2.1M 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
1,2,4-Trimethylbenzene: how the 22.9M lbs splits
22.9M lbs across all reported pathways
- Air Releases20.2M lbs88.2%
- Off-site Transfers1.9M lbs8.3%
- Land Disposal788.7K lbs3.4%
- Water Discharges7.9K lbs<0.1%
1,2,4-Trimethylbenzene's 22.9M lbs Form-R total is AIR, with air releases making up 88.2% of the bar. Next segment: off-site transfers at 8.3%.
Trend & Where It's Reported
Between 2019 and 2023, cumulative annual 1,2,4-Trimethylbenzene releases across all reporting facilities decreased by 11% (5.0M lbs → 4.4M lbs). Year-to-year swings reflect facility openings/closures and reporting changes as much as underlying activity.
Reporting for 1,2,4-Trimethylbenzene is dispersed: Indiana accounts for 17.0% of the reported total (66 facilities). Next: Texas.
- Indiana 3.9M lbs
- Texas 2.6M lbs
- Missouri 2.3M lbs
- Ohio 1.4M lbs
- Michigan 1.3M lbs
Reporting for 1,2,4-Trimethylbenzene is highly concentrated by industry: Transportation Equipment facilities account for 51.0% of the reported total (106 facilities). Next: Fabricated Metals.
- Transportation Equipment 11.7M lbs
- Fabricated Metals 2.3M lbs
- Petroleum 2.2M lbs
- Chemicals 1.8M lbs
- Furniture 735.8K lbs
Which facilities release the most of this chemical?
Facilities with the largest reported releases of 1,2,4-Trimethylbenzene. Up to 50 shown.
Frequently Asked Questions
What is 1,2,4-Trimethylbenzene in the EPA TRI? ▼
How much 1,2,4-Trimethylbenzene is disclosed in U.S. TRI filings? ▼
How does EPA TRI classify 1,2,4-Trimethylbenzene? ▼
Which facilities disclose the most 1,2,4-Trimethylbenzene? ▼
What is the CAS number for 1,2,4-Trimethylbenzene? ▼
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.