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EPA TRI Chemical

P-Nitroaniline

CAS Number: 100-01-6

Total releases
498 lbs
Number of facilities
3
Carcinogen
No
PBT substance
No
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According to the EPA Toxics Release Inventory, P-Nitroaniline (CAS 100-01-6) is disclosed by 3 Form R facilities totaling 498 lbs of reported releases. TRI pounds are self-reported disclosure totals, not a measured public-health risk score.

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P-Nitroaniline (CAS 100-01-6) 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 FLEXSYS AMERICA LP KRUMMRICH in IL at 491 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

P-Nitroaniline: how the 498 lbs splits

498 lbs across all reported pathways

  • Air Releases276 lbs55.4%
  • Off-site Transfers222 lbs44.6%

P-Nitroaniline's 498 lbs Form-R total is MIXED, with air releases making up 55.4% of the bar. Next segment: off-site transfers at 44.6%.

Trend & Where It's Reported

Reported Release Trend

Between 2019 and 2023, cumulative annual P-Nitroaniline releases across all reporting facilities increased by 74% (39 lbs → 68 lbs). Year-to-year swings reflect facility openings/closures and reporting changes as much as underlying activity.

Geographic Concentration

Reporting for P-Nitroaniline is highly concentrated: Illinois accounts for 98.7% of the reported total (1 facility). Next: Indiana.

  • Illinois 491 lbs
  • Indiana 7 lbs
  • Louisiana 0 lbs
Industry Sources

Reporting for P-Nitroaniline is highly concentrated by industry: Chemicals facilities account for 98.7% of the reported total (2 facilities). Next: Nonmetallic Mineral Product.

  • Chemicals 491 lbs
  • Nonmetallic Mineral Product 7 lbs

Which facilities release the most of this chemical?

Facilities with the largest reported releases of P-Nitroaniline. Up to 50 shown.

# Facility Release (lbs)
1 Flexsys America LP Krummrich
491 lbs
2 Heidelberg Materials US Cement LLC
7 lbs
3 Dupont Pontchartrain Works
0 lbs

Frequently Asked Questions

What is P-Nitroaniline in the EPA TRI? ▼
P-Nitroaniline (CAS Number: 100-01-6) is a chemical tracked by the EPA Toxic Release Inventory (TRI) program. It is not marked as a carcinogen in the TRI classification set. 3 facilities in the United States report releasing this chemical to the EPA.
How much P-Nitroaniline is disclosed in U.S. TRI filings? ▼
U.S. facilities have reported a total of 498 lbs of P-Nitroaniline releases to the EPA Toxic Release Inventory across 3 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 P-Nitroaniline? ▼
P-Nitroaniline 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 P-Nitroaniline? ▼
Flexsys America LP Krummrich in IL reports the largest disclosed release of P-Nitroaniline in this dataset, at 491 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 3 facilities on this page.
What is the CAS number for P-Nitroaniline? ▼
The CAS (Chemical Abstracts Service) Registry Number for P-Nitroaniline is 100-01-6. 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

Understanding TRI Data
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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.