EPA TRI Chemical
Isosafrole
CAS Number: 120-58-1
- Total releases
- 3 lbs
- Number of facilities
- 2
- Carcinogen
- No
- PBT substance
- No
According to the EPA Toxics Release Inventory, Isosafrole (CAS 120-58-1) is disclosed by 2 Form R facilities totaling 3 lbs of reported releases. TRI pounds are self-reported disclosure totals, not a measured public-health risk score.
Isosafrole (CAS 120-58-1) 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 HERITAGE THERMAL SERVICES in OH at 3 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
Isosafrole: how the 3 lbs splits
3 lbs across all reported pathways
- Air Releases3 lbs100.0%
Isosafrole's 3 lbs Form-R total is AIR, with air releases making up 100.0% of the bar. Off-site transfers stay separate from air, water, and land releases.
Trend & Where It's Reported
Between 2019 and 2023, cumulative annual Isosafrole releases across all reporting facilities decreased by 25% (0 lbs → 0 lbs). Year-to-year swings reflect facility openings/closures and reporting changes as much as underlying activity.
Reporting for Isosafrole is highly concentrated: Ohio accounts for 99.4% of the reported total (1 facility). Next: Texas.
- Ohio 3 lbs
- Texas 0 lbs
Reporting for Isosafrole is highly concentrated by industry: Hazardous Waste facilities account for 100.0% of the reported total (2 facilities).
- Hazardous Waste 3 lbs
Which facilities release the most of this chemical?
Facilities with the largest reported releases of Isosafrole. Up to 50 shown.
| # | Facility | Release (lbs) |
|---|---|---|
| 1 | Heritage Thermal Services | |
| 2 | Arcwood Environmental - Orange LLC |
Frequently Asked Questions
What is Isosafrole in the EPA TRI? ▼
How much Isosafrole is disclosed in U.S. TRI filings? ▼
How does EPA TRI classify Isosafrole? ▼
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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.