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EPA TRI Chemical

Aluminum Phosphide

CAS Number: 20859-73-8

Total releases
137.7K lbs
Number of facilities
5
Carcinogen
No
PBT substance
No
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According to the EPA Toxics Release Inventory, Aluminum Phosphide (CAS 20859-73-8) is disclosed by 5 Form R facilities totaling 137.7K lbs of reported releases. TRI pounds are self-reported disclosure totals, not a measured public-health risk score.

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Aluminum Phosphide (CAS 20859-73-8) 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 75.3K 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

Aluminum Phosphide: how the 137.7K lbs splits

137.7K lbs across all reported pathways

  • Off-site Transfers75.3K lbs54.7%
  • Air Releases62.4K lbs45.3%

Aluminum Phosphide's 137.7K lbs Form-R total is MIXED, with off-site transfers making up 54.7% of the bar. Next segment: air releases at 45.3%.

Trend & Where It's Reported

Reported Release Trend

Between 2019 and 2023, cumulative annual Aluminum Phosphide releases across all reporting facilities increased by 13324% (704 lbs → 94.5K lbs). Year-to-year swings reflect facility openings/closures and reporting changes as much as underlying activity.

Geographic Concentration

Reporting for Aluminum Phosphide is highly concentrated: Ohio accounts for 54.7% of the reported total (1 facility). Next: Texas.

  • Ohio 75.3K lbs
  • Texas 62.3K lbs
  • South Carolina 148 lbs
  • Virginia 0 lbs
Industry Sources

Reporting for Aluminum Phosphide is highly concentrated by industry: Hazardous Waste facilities account for 54.7% of the reported total (2 facilities). Next: Food.

  • Hazardous Waste 75.3K lbs
  • Food 62.3K lbs
  • Nonmetallic Mineral Product 148 lbs
  • Chemicals 0 lbs

Which facilities release the most of this chemical?

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

# Facility Release (lbs)
1 Heritage Thermal Services
75.3K lbs
2 Riviana Foods Inc.
62.3K lbs
3 Giant Cement Co
148 lbs
4 Veolia Es Technical Solutions LLC Port Arthur Facility
3 lbs
5 Degesch America Inc
0 lbs

Frequently Asked Questions

What is Aluminum Phosphide in the EPA TRI? ▼
Aluminum Phosphide (CAS Number: 20859-73-8) is a chemical tracked by the EPA Toxic Release Inventory (TRI) program. It is not marked as a carcinogen in the TRI classification set. 5 facilities in the United States report releasing this chemical to the EPA.
How much Aluminum Phosphide is disclosed in U.S. TRI filings? ▼
U.S. facilities have reported a total of 137.7K lbs of Aluminum Phosphide releases to the EPA Toxic Release Inventory across 5 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 Aluminum Phosphide? ▼
Aluminum Phosphide 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 Aluminum Phosphide? ▼
Heritage Thermal Services in OH reports the largest disclosed release of Aluminum Phosphide in this dataset, at 75.3K lbs. Most reporting facilities for this chemical fall under hazardous waste. Release data is self-reported annually to the EPA under the TRI program. View the full list of 5 facilities on this page.
What is the CAS number for Aluminum Phosphide? ▼
The CAS (Chemical Abstracts Service) Registry Number for Aluminum Phosphide is 20859-73-8. 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.

Related Guides

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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.