PlainEnviro

EPA TRI Chemical

Nitrobenzene

CAS Number: 98-95-3

Total releases
1.8M lbs
Number of facilities
27
Carcinogen
Yes
PBT substance
No
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Carcinogen

According to the EPA Toxics Release Inventory, Nitrobenzene (CAS 98-95-3) is disclosed by 27 Form R facilities totaling 1.8M lbs of reported releases. The TRI extract marks this chemical with a carcinogen classification flag. TRI pounds are self-reported disclosure totals, not a measured public-health risk score.

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Nitrobenzene (CAS 98-95-3) 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.

The carcinogen flag above reflects an assessment from EPA, the International Agency for Research on Cancer, or the National Toxicology Program, not a TRI-specific determination. The largest individual disclosure in the current dataset comes from RUBICON LLC in LA at 1.4M 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.

LAND pathway mix

Nitrobenzene: how the 1.8M lbs splits

1.8M lbs across all reported pathways

  • Land Disposal1.7M lbs95.2%
  • Air Releases79.4K lbs4.5%
  • Off-site Transfers4.0K lbs0.2%

Nitrobenzene's 1.8M lbs Form-R total is LAND, with land disposal making up 95.2% of the bar. Next segment: air releases at 4.5%.

Trend & Where It's Reported

Reported Release Trend

Between 2019 and 2023, cumulative annual Nitrobenzene releases across all reporting facilities decreased by 42% (491.1K lbs → 283.9K lbs). Year-to-year swings reflect facility openings/closures and reporting changes as much as underlying activity.

Geographic Concentration

Reporting for Nitrobenzene is highly concentrated: Louisiana accounts for 78.5% of the reported total (3 facilities). Next: Texas.

  • Louisiana 1.4M lbs
  • Texas 337.2K lbs
  • North Carolina 26.5K lbs
  • Alabama 7.0K lbs
  • Mississippi 3.3K lbs
Industry Sources

Reporting for Nitrobenzene is highly concentrated by industry: Chemicals facilities account for 99.9% of the reported total (14 facilities). Next: Nonmetallic Mineral Product.

  • Chemicals 1.7M lbs
  • Nonmetallic Mineral Product 1.4K lbs
  • Hazardous Waste 966 lbs

Which facilities release the most of this chemical?

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

# Facility Release (lbs)
1 Rubicon LLC
1.4M lbs
2 The Dow Chemical Co - Beaumont Aniline
331.2K lbs
3 Mallinckrodt Pharmaceuticals
26.5K lbs
4 Basf Corp
7.0K lbs
5 Covestro LLC
5.8K lbs
6 Basf Corp
5.2K lbs
7 First Chemical Corp
3.3K lbs
8 Keystone Cement Co
1.1K lbs
9 Calgon Carbon Corp
708 lbs
10 Clean Harbors el Dorado LLC
699 lbs
11 Norlite LLC
365 lbs
12 Clean Harbors Deer Park LLC
168 lbs
13 Clean Harbors Environmental Services Inc
52 lbs
14 Veolia Es Technical Solutions LLC Port Arthur Facility
27 lbs
15 W R Grace & Co
26 lbs
16 Tiarco Chemical
14 lbs
17 Clean Harbors San Leon Inc
10 lbs
18 Orient Corp of America
10 lbs
19 Veolia N.a. Inc.
7 lbs
20 Heritage Thermal Services
2 lbs
21 Clean Harbors Aragonite LLC
2 lbs
22 Ross Incineration Services Inc
0 lbs
23 Arcwood Environmental - Orange LLC
0 lbs
24 Amvac Chemical Corp
0 lbs
25 Eco-Services Operations
0 lbs
26 Heidelberg Materials US Cement LLC
0 lbs
27 Tedia Co LLC
0 lbs

Frequently Asked Questions

What is Nitrobenzene in the EPA TRI? ▼
Nitrobenzene (CAS Number: 98-95-3) is a chemical tracked by the EPA Toxic Release Inventory (TRI) program. The TRI extract marks it with a carcinogen classification flag based on EPA/IARC/NTP listings. 27 facilities in the United States report releasing this chemical to the EPA.
How much Nitrobenzene is disclosed in U.S. TRI filings? ▼
U.S. facilities have reported a total of 1.8M lbs of Nitrobenzene releases to the EPA Toxic Release Inventory across 27 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 Nitrobenzene? ▼
Nitrobenzene carries a carcinogen classification flag in the TRI database (drawn from EPA, IARC, or NTP listings). 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 Nitrobenzene? ▼
Rubicon LLC in LA reports the largest disclosed release of Nitrobenzene in this dataset, at 1.4M 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 27 facilities on this page.
What is the CAS number for Nitrobenzene? ▼
The CAS (Chemical Abstracts Service) Registry Number for Nitrobenzene is 98-95-3. 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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How to Check Environmental Quality
Step-by-step guide to checking your local environment

Health Information

Carcinogen Classification: This chemical is classified as a known or suspected carcinogen by the EPA under the Toxic Release Inventory program. This classification is based on evaluations by agencies including the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP), and the EPA itself.

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.