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Diisononyl Phthalates (dinp)

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EPA TRI Category Code: N125

According to the EPA Toxics Release Inventory, Diisononyl Phthalates (dinp) (EPA TRI Category Code N125) is disclosed by 17 Form R facilities totaling 121.2K lbs of reported releases. TRI pounds are self-reported disclosure totals, not a measured public-health risk score.

Diisononyl Phthalates (dinp) (EPA TRI Category Code N125) 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.

Across the United States, 17 facilities have filed TRI Form R disclosures for Diisononyl Phthalates (dinp), with a cumulative reported release volume of 121.2K lbs. The chemical is not flagged as a carcinogen in the TRI classification set. The largest individual disclosure in the current dataset comes from RIMTEC MANUFACTURING CORP in NJ at 84.1K 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.

Release Summary

Total Releases
121.2K lbs
Number of Facilities
17
Carcinogen
No
Persistent Bioaccumulative Toxicant
No

Which facilities release the most of this chemical?

Facilities with the largest reported releases of Diisononyl Phthalates (dinp). Up to 50 shown.

# Facility Release (lbs)
1 Rimtec Manufacturing Corp 84.1K lbs
2 Protech Powder Coating Inc/york 23.6K lbs
3 Cooley Inc 4.2K lbs
4 Polytek Development Corp 2.9K lbs
5 O'Sullivan Films Inc 2.8K lbs
6 Sika Corp 1.4K lbs
7 Fiber-Line LLC 1.3K lbs
8 Prysmian Cable & Systems LLC 500 lbs
9 Teknor Apex Co 292 lbs
10 Dormont Manufacturing Co 10 lbs
11 Geon Performance Solutions 3 lbs
12 I2M Inc. 0 lbs
13 Smooth-On Inc 0 lbs
14 Saint-Gobain Adfors America Inc 0 lbs
15 R.e. Carroll Inc. 0 lbs
16 Colorite Polymers 0 lbs
17 Ronald Mark Associates Inc 0 lbs

Frequently Asked Questions

What is Diisononyl Phthalates (dinp) in the EPA TRI? ▼
Diisononyl Phthalates (dinp) (EPA TRI Category Code: N125) is a chemical tracked by the EPA Toxic Release Inventory (TRI) program. It is not marked as a carcinogen in the TRI classification set. 17 facilities in the United States report releasing this chemical to the EPA.
How much Diisononyl Phthalates (dinp) is disclosed in U.S. TRI filings? ▼
U.S. facilities have reported a total of 121.2K lbs of Diisononyl Phthalates (dinp) releases to the EPA Toxic Release Inventory across 17 facilities. Release quantities are self-reported estimates covering air, water, land, and off-site transfers. They are disclosure totals, not toxicity-weighted harm scores.
How does EPA TRI classify Diisononyl Phthalates (dinp)? ▼
Diisononyl Phthalates (dinp) is not marked as a carcinogen in the TRI classification set. TRI classification flags document inventory listing status; they are not a site-specific exposure or health diagnosis. For health-effect summaries see EPA IRIS and ATSDR toxicological profiles.
Which facilities disclose the most Diisononyl Phthalates (dinp)? ▼
The largest reported releasers of Diisononyl Phthalates (dinp) include facilities across multiple states. Release data is self-reported annually to the EPA under the TRI program. View the full list of 17 facilities on this page.
Why is Diisononyl Phthalates (dinp) listed under code N125 instead of a CAS number? ▼
N125 is an EPA TRI Category Code, not a CAS Registry Number. EPA assigns category codes (N-prefix and K-prefix) to chemical groups that share reporting requirements, for example, "Diisononyl Phthalates (dinp)" covers many distinct compounds aggregated for TRI reporting. Individual constituents may have their own CAS Registry Numbers (e.g., elemental Lead is CAS 7439-92-1), but the group is reported under the single TRI Category Code.

Related Guides

Understanding TRI Data
How the Toxic Release Inventory works
Biggest Polluters in America
Which facilities release the most toxics
How to Check Environmental Quality
Step-by-step guide to checking your local environment

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.

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Data sourced from the U.S. Environmental Protection Agency (EPA). See our methodology for details. Retrieved and formatted by PlainEnviro

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.