EPA TRI Chemical
Dibutyl Phthalate
CAS Number: 84-74-2
- Total releases
- 992.9K lbs
- Number of facilities
- 81
- Carcinogen
- No
- PBT substance
- No
According to the EPA Toxics Release Inventory, Dibutyl Phthalate (CAS 84-74-2) is disclosed by 81 Form R facilities totaling 992.9K lbs of reported releases. TRI pounds are self-reported disclosure totals, not a measured public-health risk score.
Dibutyl Phthalate (CAS 84-74-2) 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 ASCEND PERFORMANCE MATERIALS OPERATIONS LLC in FL at 243.7K 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
Dibutyl Phthalate: how the 992.9K lbs splits
992.9K lbs across all reported pathways
- Land Disposal497.5K lbs50.1%
- Off-site Transfers338.2K lbs34.1%
- Air Releases157.3K lbs15.8%
- Water Discharges0 lbs<0.1%
Dibutyl Phthalate's 992.9K lbs Form-R total is MIXED, with land disposal making up 50.1% of the bar. Next segment: off-site transfers at 34.1%.
Trend & Where It's Reported
Between 2019 and 2023, cumulative annual Dibutyl Phthalate releases across all reporting facilities decreased by 61% (298.2K lbs → 117.1K lbs). Year-to-year swings reflect facility openings/closures and reporting changes as much as underlying activity.
Reporting for Dibutyl Phthalate is concentrated: Florida accounts for 25.1% of the reported total (3 facilities). Next: Michigan.
- Florida 248.9K lbs
- Michigan 198.3K lbs
- Indiana 195.0K lbs
- Kentucky 100.5K lbs
- Ohio 57.7K lbs
Reporting for Dibutyl Phthalate is highly concentrated by industry: Other facilities account for 56.4% of the reported total (19 facilities). Next: Chemicals.
- Other 560.4K lbs
- Chemicals 284.4K lbs
- Hazardous Waste 123.6K lbs
- Fabricated Metals 21.9K lbs
- Chemical Wholesalers 2.2K lbs
Which facilities release the most of this chemical?
Facilities with the largest reported releases of Dibutyl Phthalate. Up to 50 shown.
Frequently Asked Questions
What is Dibutyl Phthalate in the EPA TRI? ▼
How much Dibutyl Phthalate is disclosed in U.S. TRI filings? ▼
How does EPA TRI classify Dibutyl Phthalate? ▼
Which facilities disclose the most Dibutyl Phthalate? ▼
What is the CAS number for Dibutyl Phthalate? ▼
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.