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Nitrobenzene

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Carcinogen

CAS Number: 98-95-3

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.

Across the United States, 27 facilities have filed TRI Form R disclosures for Nitrobenzene, with a cumulative reported release volume of 1.8M lbs. The chemical carries a carcinogen classification in the TRI database, based on assessments from EPA, IARC, or the National Toxicology Program. 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.

Release Summary

Total Releases
1.8M lbs
Number of Facilities
27
Carcinogen
Yes
Persistent Bioaccumulative Toxicant
No

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 1.0K 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 8 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? ▼
Nitrobenzene (CAS Number: 98-95-3) is a chemical tracked by the EPA Toxic Release Inventory (TRI) program. It is classified as a known or suspected carcinogen. 27 facilities in the United States report releasing this chemical to the EPA.
How much Nitrobenzene is released in the U.S.? ▼
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. This includes releases to air, water, land, and off-site transfers.
Is Nitrobenzene harmful to health? ▼
Nitrobenzene is classified as a known or suspected carcinogen by the EPA, based on evaluations from IARC, NTP, or EPA itself. Health effects depend on exposure levels, duration, and route. For specific health questions, consult a toxicologist or your local health agency.
Which facilities release the most Nitrobenzene? ▼
The largest reported releasers of Nitrobenzene include facilities across multiple states. 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
How the Toxic Release Inventory works
Biggest Polluters in America
Which facilities release the most toxics
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 Editorial

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.