Oklahoma reported 362 facilities releasing 28.6M lbs of toxic chemicals in the most recent EPA Toxic Release Inventory dataset, ranking #29 nationally out of 50 states. The dominant release pathway is air, accounting for 63.9% of the state total. Oklahoma’s leading TRI industry is Chemicals, contributing 39.7% of all state releases. Use the map below to explore facilities by location, or filter by air, water, or land discharges.
Oklahoma’s Toxic Release Profile
| Metric | Value |
|---|---|
| Total Releases | 28.6M lbs |
| Reporting Facilities | 362 |
| National Rank | #29 of 50 states |
| Air Releases | 18.3M lbs (63.9%) |
| Water Releases | 4.2M lbs (14.8%) |
| Land Releases | 3.3M lbs (11.6%) |
Top Industries in Oklahoma
| Industry | Total Releases | Share |
|---|---|---|
| Chemicals | 11.4M lbs | 39.7% |
| Paper | 6.1M lbs | 21.3% |
| Food | 3.6M lbs | 12.7% |
| Hazardous Waste | 2.2M lbs | 7.8% |
| Petroleum | 1.2M lbs | 4.2% |
| Electric Utilities | 1.1M lbs | 4% |
| Fabricated Metals | 611K lbs | 2.1% |
| Primary Metals | 598K lbs | 2.1% |
| Plastics and Rubber | 398K lbs | 1.4% |
| Wood Products | 355K lbs | 1.2% |
| Nonmetallic Mineral Product | 317K lbs | 1.1% |
| Transportation Equipment | 269K lbs | 0.9% |
| Other | 233K lbs | 0.8% |
| Electrical Equipment | 75K lbs | 0.3% |
| Machinery | 42K lbs | 0.1% |
| Printing | 30K lbs | 0.1% |
| Chemical Wholesalers | 15K lbs | 0.1% |
| Miscellaneous Manufacturing | 14K lbs | 0% |
| Petroleum Bulk Terminals | 6K lbs | 0% |
| Beverages | 5K lbs | 0% |
| Textiles | 2K lbs | 0% |
| Computers and Electronic Products | 1K lbs | 0% |
Top Facilities in Oklahoma
| Facility | City | Industry | Total Releases |
|---|---|---|---|
| INTERNATIONAL PAPER CO | VALLIANT | Paper | 5.9M lbs |
| KOCH FERTILIZER ENID LLC | ENID | Chemicals | 4.3M lbs |
| TERRA NITROGEN LP VERDIGRIS PLANT | CLAREMORE | Chemicals | 3.1M lbs |
| PRYOR SOLAE | PRYOR | Food | 2.3M lbs |
| CLEAN HARBORS LONE MOUNTAIN LLC LONE MOUNTAIN FACILITY | WAYNOKA | Hazardous Waste | 2M lbs |
About the Data
Data sourced from the EPA Toxic Release Inventory (TRI) program. Facilities in covered industry sectors that manufacture, process, or use listed chemicals above threshold quantities must report annually. The map uses the most recent available EPA TRI dataset. Release volumes reflect regulatory reporting quantities and are not direct measures of health hazard or human exposure. For the full national picture and all-state rankings, visit the US Toxic Release Inventory Map.
Explore Neighboring States
- Arkansas Toxic Release Map
- Colorado Toxic Release Map
- Kansas Toxic Release Map
- Missouri Toxic Release Map
- New Mexico Toxic Release Map
- Texas Toxic Release Map
For the complete national dataset and all-state rankings, visit the US Toxic Release Inventory Map.

