CAS Number: 72-43-5
Methoxychlor (CAS 72-43-5) 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, 15 facilities have filed TRI Form R disclosures for Methoxychlor, with a cumulative reported release volume of 11.1K lbs. The chemical is not flagged as a carcinogen in the TRI classification set. It is also listed as a persistent, bioaccumulative, and toxic (PBT) substance, a category subject to lower reporting thresholds and elevated regulatory concern. The largest individual disclosure in the current dataset comes from CLEAN HARBORS EL DORADO LLC in AR at 3.5K 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
Which facilities release the most of this chemical?
Facilities with the largest reported releases of Methoxychlor. Up to 50 shown.
| # | Facility | Release (lbs) |
|---|---|---|
| 1 | Clean Harbors el Dorado LLC | 3.5K lbs |
| 2 | Heritage Thermal Services | 2.4K lbs |
| 3 | Chemical Waste Management of the Northwest Inc. | 2.1K lbs |
| 4 | Chemical Waste Management | 1.6K lbs |
| 5 | Clean Harbors Deer Park LLC | 799 lbs |
| 6 | Clean Harbors Environmental Services Inc | 517 lbs |
| 7 | Elemental Environmental Solutions LLC | 224 lbs |
| 8 | Veolia N.a. Inc. | 9 lbs |
| 9 | Veolia Es Technical Solutions LLC Port Arthur Facility | 8 lbs |
| 10 | Clean Harbors Aragonite LLC | 0 lbs |
| 11 | Giant Cement Co | 0 lbs |
| 12 | Ross Incineration Services Inc | 0 lbs |
| 13 | Tradebe Treatment & Recycling of Tn | 0 lbs |
| 14 | Arcwood Environmental - Orange LLC | 0 lbs |
| 15 | Mxi Environmental Services LLC | 0 lbs |
Frequently Asked Questions
What is Methoxychlor? ▼
How much Methoxychlor is released in the U.S.? ▼
Is Methoxychlor harmful to health? ▼
Which facilities release the most Methoxychlor? ▼
What is the CAS number for Methoxychlor? ▼
Health Information
Persistent Bioaccumulative Toxicant (PBT): This chemical is classified as a PBT by the EPA. PBT chemicals are toxic, persist in the environment, and bioaccumulate in food chains. Because of these properties, even relatively small releases can pose a significant threat to human health and the environment over time.
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.