PlainEnviro

EPA TRI Chemical

Sulfuric Acid (acid Aerosols Including Mists, Vapors, Gas, Fog, and Other Airborne Forms of Any Particle Size)

CAS Number: 7664-93-9

Total releases
240.6M lbs
Number of facilities
692
Carcinogen
No
PBT substance
No
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According to the EPA Toxics Release Inventory, Sulfuric Acid (acid Aerosols Including Mists, Vapors, Gas, Fog, and Other Airborne Forms of Any Particle Size) (CAS 7664-93-9) is disclosed by 692 Form R facilities totaling 240.6M lbs of reported releases. TRI pounds are self-reported disclosure totals, not a measured public-health risk score.

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Sulfuric Acid (acid Aerosols Including Mists, Vapors, Gas, Fog, and Other Airborne Forms of Any Particle Size) (CAS 7664-93-9) 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 HARRISON POWER STATION in WV at 22.6M 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.

AIR pathway mix

Sulfuric Acid (acid Aerosols Including Mists, Vapors, Gas, Fog, and Other Airborne Forms of Any Particle Size): how the 240.6M lbs splits

240.6M lbs across all reported pathways

  • Air Releases239.3M lbs99.4%
  • Off-site Transfers1.2M lbs0.5%
  • Land Disposal172.9K lbs0.1%

Sulfuric Acid (acid Aerosols Including Mists, Vapors, Gas, Fog, and Other Airborne Forms of Any Particle Size)'s 240.6M lbs Form-R total is AIR, with air releases making up 99.4% of the bar. Next segment: off-site transfers at 0.5%.

Trend & Where It's Reported

Reported Release Trend

Between 2019 and 2023, cumulative annual Sulfuric Acid (acid Aerosols Including Mists, Vapors, Gas, Fog, and Other Airborne Forms of Any Particle Size) releases across all reporting facilities decreased by 36% (56.9M lbs → 36.3M lbs). Year-to-year swings reflect facility openings/closures and reporting changes as much as underlying activity.

Geographic Concentration

Reporting for Sulfuric Acid (acid Aerosols Including Mists, Vapors, Gas, Fog, and Other Airborne Forms of Any Particle Size) is dispersed: Ohio accounts for 18.1% of the reported total (32 facilities). Next: West Virginia.

  • Ohio 43.5M lbs
  • West Virginia 37.1M lbs
  • Kentucky 20.6M lbs
  • Indiana 18.5M lbs
  • Tennessee 12.3M lbs
Industry Sources

Reporting for Sulfuric Acid (acid Aerosols Including Mists, Vapors, Gas, Fog, and Other Airborne Forms of Any Particle Size) is highly concentrated by industry: Electric Utilities facilities account for 77.1% of the reported total (225 facilities). Next: Petroleum.

  • Electric Utilities 185.6M lbs
  • Petroleum 20.8M lbs
  • Primary Metals 12.2M lbs
  • Chemicals 8.2M lbs
  • Nonmetallic Mineral Product 5.5M lbs

Which facilities release the most of this chemical?

Facilities with the largest reported releases of Sulfuric Acid (acid Aerosols Including Mists, Vapors, Gas, Fog, and Other Airborne Forms of Any Particle Size). Up to 50 shown.

# Facility Release (lbs)
1 Harrison Power Station
22.6M lbs
2 Gavin Power LLC
19.6M lbs
3 W H Sammis Plant
9.9M lbs
4 U.S. Tva Cumberland Fossil Plant
9.7M lbs
5 Big Rivers Electric Corp. Wilson Station
7.2M lbs
6 Conemaugh Generating Station
5.1M lbs
7 Seminole Generating Station
5.0M lbs
8 Alcoa Warrick Newco LLC
5.0M lbs
9 Fort Martin Power Station
4.9M lbs
10 Keystone Power Plant
4.2M lbs
11 Kyger Creek Station
4.1M lbs
12 Kentucky Utilities Co Ghent Station
3.5M lbs
13 Nipsco R.m.schahfer Generating Station
3.5M lbs
14 Miami Fort Power Co LLC
3.3M lbs
15 Gibson Generating Station
3.2M lbs
16 Adm Corn Processing
3.1M lbs
17 Exxonmobil Oil Corp Joliet Refinery
3.0M lbs
18 Clifty Creek Station
3.0M lbs
19 Cross Generating Station
3.0M lbs
20 Dte Electric Co - Monroe Power Plant
2.9M lbs
21 Northside Generating Station
2.5M lbs
22 Louisville Gas & Electric Co. - Trimble County Station
2.5M lbs
23 Pleasants Power Station
2.4M lbs
24 Hawaiian Electric Co Inc Kahe Generating Station
2.3M lbs
25 Louisville Gas & Electric Co. - Mill Creek Station
2.3M lbs
26 Barry Steam Plant
2.2M lbs
27 Jewell Coke Co LP
2.0M lbs
28 Cardinal Plant
2.0M lbs
29 Prairie State Generating Co
1.8M lbs
30 Bowen Steam Electric Generating Plant
1.8M lbs
31 American Electric Power Amos Plant
1.6M lbs
32 Winyah Generating Station
1.6M lbs
33 Duke Energy Indiana Inc. Cayuga Generating Station
1.6M lbs
34 Exxonmobil Baton Rouge Refinery (part)
1.6M lbs
35 Exxonmobil Refining & Supply Baytown Refinery (part)
1.5M lbs
36 Duke Energy Kentucky Inc. East Bend Generating Station
1.4M lbs
37 Mountaineer Plant
1.4M lbs
38 U.S. Tva Kingston Fossil Plant
1.4M lbs
39 Phillips 66 Lake Charles Refinery
1.4M lbs
40 Big Rivers Electric Corp Reid/green/hmp&l Station II
1.3M lbs
41 Wva Manufacturing LLC
1.3M lbs
42 Ferroglobe USA Metallurgical Inc
1.3M lbs
43 Duke Energy Carolinas LLC - Marshall Steam Station
1.2M lbs
44 Duke Energy Florida Llc-Crystal River Power Plant
1.2M lbs
45 Mosaic Fertilizer LLC Uncle Sam Plant
1.1M lbs
46 Prepa - Aguirre Power Generati on Complex
1.0M lbs
47 Miller Steam Plant
1.0M lbs
48 Mount Storm Power Station
1.0M lbs
49 Zimmer Power Co LLC
1.0M lbs
50 Mississippi Lime Co Ste Genevieve
981.7K lbs

Frequently Asked Questions

What is Sulfuric Acid (acid Aerosols Including Mists, Vapors, Gas, Fog, and Other Airborne Forms of Any Particle Size) in the EPA TRI? ▼
Sulfuric Acid (acid Aerosols Including Mists, Vapors, Gas, Fog, and Other Airborne Forms of Any Particle Size) (CAS Number: 7664-93-9) is a chemical tracked by the EPA Toxic Release Inventory (TRI) program. It is not marked as a carcinogen in the TRI classification set. 692 facilities in the United States report releasing this chemical to the EPA.
How much Sulfuric Acid (acid Aerosols Including Mists, Vapors, Gas, Fog, and Other Airborne Forms of Any Particle Size) is disclosed in U.S. TRI filings? ▼
U.S. facilities have reported a total of 240.6M lbs of Sulfuric Acid (acid Aerosols Including Mists, Vapors, Gas, Fog, and Other Airborne Forms of Any Particle Size) releases to the EPA Toxic Release Inventory across 692 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 Sulfuric Acid (acid Aerosols Including Mists, Vapors, Gas, Fog, and Other Airborne Forms of Any Particle Size)? ▼
Sulfuric Acid (acid Aerosols Including Mists, Vapors, Gas, Fog, and Other Airborne Forms of Any Particle Size) 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 Sulfuric Acid (acid Aerosols Including Mists, Vapors, Gas, Fog, and Other Airborne Forms of Any Particle Size)? ▼
Harrison Power Station in WV reports the largest disclosed release of Sulfuric Acid (acid Aerosols Including Mists, Vapors, Gas, Fog, and Other Airborne Forms of Any Particle Size) in this dataset, at 22.6M lbs. Most reporting facilities for this chemical fall under electric utilities. Release data is self-reported annually to the EPA under the TRI program. View the full list of 692 facilities on this page.
What is the CAS number for Sulfuric Acid (acid Aerosols Including Mists, Vapors, Gas, Fog, and Other Airborne Forms of Any Particle Size)? ▼
The CAS (Chemical Abstracts Service) Registry Number for Sulfuric Acid (acid Aerosols Including Mists, Vapors, Gas, Fog, and Other Airborne Forms of Any Particle Size) is 7664-93-9. 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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How to Check Environmental Quality
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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.