EPA TRI Chemical
P-Xylene
CAS Number: 106-42-3
- Total releases
- 2.3M lbs
- Number of facilities
- 56
- Carcinogen
- No
- PBT substance
- No
According to the EPA Toxics Release Inventory, P-Xylene (CAS 106-42-3) is disclosed by 56 Form R facilities totaling 2.3M lbs of reported releases. TRI pounds are self-reported disclosure totals, not a measured public-health risk score.
P-Xylene (CAS 106-42-3) 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 INDORAMA VENTURES in AL at 1.2M 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
P-Xylene: how the 2.3M lbs splits
2.3M lbs across all reported pathways
- Air Releases2.3M lbs99.2%
- Off-site Transfers17.3K lbs0.8%
- Water Discharges240 lbs<0.1%
- Land Disposal58 lbs<0.1%
P-Xylene's 2.3M lbs Form-R total is AIR, with air releases making up 99.2% of the bar. Next segment: off-site transfers at 0.8%.
Trend & Where It's Reported
Between 2019 and 2023, cumulative annual P-Xylene releases across all reporting facilities decreased by 9% (479.8K lbs → 438.4K lbs). Year-to-year swings reflect facility openings/closures and reporting changes as much as underlying activity.
Reporting for P-Xylene is highly concentrated: Alabama accounts for 52.2% of the reported total (2 facilities). Next: South Carolina.
- Alabama 1.2M lbs
- South Carolina 784.1K lbs
- Texas 244.8K lbs
- Mississippi 62.7K lbs
- Indiana 5.2K lbs
Reporting for P-Xylene is highly concentrated by industry: Chemicals facilities account for 91.2% of the reported total (12 facilities). Next: Petroleum.
- Chemicals 2.1M lbs
- Petroleum 182.1K lbs
- Natural Gas Processing 9.9K lbs
- Hazardous Waste 5.2K lbs
- Transportation Equipment 5.0K lbs
Which facilities release the most of this chemical?
Facilities with the largest reported releases of P-Xylene. Up to 50 shown.
Frequently Asked Questions
What is P-Xylene in the EPA TRI? ▼
How much P-Xylene is disclosed in U.S. TRI filings? ▼
How does EPA TRI classify P-Xylene? ▼
Which facilities disclose the most P-Xylene? ▼
What is the CAS number for P-Xylene? ▼
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.