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EPA TRI Chemical

Oxadiazon

CAS Number: 19666-30-9

Total releases
5.7K lbs
Number of facilities
8
Carcinogen
No
PBT substance
No
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According to the EPA Toxics Release Inventory, Oxadiazon (CAS 19666-30-9) is disclosed by 8 Form R facilities totaling 5.7K lbs of reported releases. TRI pounds are self-reported disclosure totals, not a measured public-health risk score.

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Oxadiazon (CAS 19666-30-9) 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 TURF CARE SUPPLY LLC. in FL at 5.6K 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.

OFFSITE pathway mix

Oxadiazon: how the 5.7K lbs splits

5.7K lbs across all reported pathways

  • Off-site Transfers5.6K lbs99.3%
  • Air Releases41 lbs0.7%
  • Water Discharges2 lbs<0.1%

Oxadiazon's 5.7K lbs Form-R total is OFFSITE, with off-site transfers making up 99.3% of the bar. Next segment: air releases at 0.7%.

Trend & Where It's Reported

Reported Release Trend

Between 2019 and 2023, cumulative annual Oxadiazon releases across all reporting facilities decreased by 98% (607 lbs → 11 lbs). Year-to-year swings reflect facility openings/closures and reporting changes as much as underlying activity.

Geographic Concentration

Reporting for Oxadiazon is highly concentrated: Florida accounts for 99.3% of the reported total (2 facilities). Next: Georgia.

  • Florida 5.6K lbs
  • Georgia 40 lbs
  • Missouri 2 lbs
  • Texas 0 lbs
  • Pennsylvania 0 lbs
Industry Sources

Reporting for Oxadiazon is highly concentrated by industry: Chemicals facilities account for 100.0% of the reported total (8 facilities).

  • Chemicals 5.7K lbs

Which facilities release the most of this chemical?

Facilities with the largest reported releases of Oxadiazon. Up to 50 shown.

# Facility Release (lbs)
1 Turf Care Supply Llc.
5.6K lbs
2 Makhteshim Agan of N.a. Inc. DBA Adama Tifton Plan
40 lbs
3 Bayer Cropscience LP - Kc
2 lbs
4 Control Solutions Inc.
0 lbs
5 Knox Fertilizer Co Inc
0 lbs
6 Harrells Inc.
0 lbs
7 Harrells Inc
0 lbs
8 Lebanon Seaboard Corp
0 lbs

Frequently Asked Questions

What is Oxadiazon in the EPA TRI? ▼
Oxadiazon (CAS Number: 19666-30-9) is a chemical tracked by the EPA Toxic Release Inventory (TRI) program. It is not marked as a carcinogen in the TRI classification set. 8 facilities in the United States report releasing this chemical to the EPA.
How much Oxadiazon is disclosed in U.S. TRI filings? ▼
U.S. facilities have reported a total of 5.7K lbs of Oxadiazon releases to the EPA Toxic Release Inventory across 8 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 Oxadiazon? ▼
Oxadiazon 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 Oxadiazon? ▼
Turf Care Supply Llc. in FL reports the largest disclosed release of Oxadiazon in this dataset, at 5.6K lbs. Most reporting facilities for this chemical fall under chemicals. Release data is self-reported annually to the EPA under the TRI program. View the full list of 8 facilities on this page.
What is the CAS number for Oxadiazon? ▼
The CAS (Chemical Abstracts Service) Registry Number for Oxadiazon is 19666-30-9. CAS numbers are unique numerical identifiers assigned to every chemical substance described in the open scientific literature. This identifier is used to search scientific databases and regulatory filings.

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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.

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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.