Mississippi reported 309 facilities releasing 53.6M lbs of toxic chemicals in the most recent EPA Toxic Release Inventory dataset, ranking #15 nationally out of 50 states. The dominant release pathway is land, accounting for 48.4% of the state total. Mississippi’s leading TRI industry is Chemicals, contributing 51.1% of all state releases. Use the map below to explore facilities by location, or filter by air, water, or land discharges.
Mississippi’s Toxic Release Profile
| Metric | Value |
|---|---|
| Total Releases | 53.6M lbs |
| Reporting Facilities | 309 |
| National Rank | #15 of 50 states |
| Air Releases | 13.7M lbs (25.5%) |
| Water Releases | 9.1M lbs (17%) |
| Land Releases | 25.9M lbs (48.4%) |
Top Industries in Mississippi
| Industry | Total Releases | Share |
|---|---|---|
| Chemicals | 27.4M lbs | 51.1% |
| Paper | 8.7M lbs | 16.3% |
| Food | 7.6M lbs | 14.2% |
| Electric Utilities | 2.9M lbs | 5.4% |
| Petroleum | 2.1M lbs | 3.9% |
| Primary Metals | 1.7M lbs | 3.1% |
| Fabricated Metals | 708K lbs | 1.3% |
| Transportation Equipment | 697K lbs | 1.3% |
| Wood Products | 633K lbs | 1.2% |
| Plastics and Rubber | 481K lbs | 0.9% |
| Nonmetallic Mineral Product | 272K lbs | 0.5% |
| Machinery | 214K lbs | 0.4% |
| Other | 100K lbs | 0.2% |
| Electrical Equipment | 67K lbs | 0.1% |
| Furniture | 56K lbs | 0.1% |
| Petroleum Bulk Terminals | 12K lbs | 0% |
| Chemical Wholesalers | 4K lbs | 0% |
| Computers and Electronic Products | 25 lbs | 0% |
| Textile Product | 0 lbs | 0% |
Top Facilities in Mississippi
| Facility | City | Industry | Total Releases |
|---|---|---|---|
| TRONOX LLC | HAMILTON | Chemicals | 12.9M lbs |
| CHEMOURS DELISLE PLANT | PASS CHRISTIAN | Chemicals | 12.7M lbs |
| GEORGIA PACIFIC LEAF RIVER CELLULOSE LLC | NEW AUGUSTA | Paper | 2.8M lbs |
| CHOCTAW GENERATION LP LLLP | ACKERMAN | Electric Utilities | 2.2M lbs |
| TYSON FARMS INC – CARTHAGE MS PROCESSING PLANT | CARTHAGE | Food | 2.2M 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
- Alabama Toxic Release Map
- Arkansas Toxic Release Map
- Louisiana Toxic Release Map
- Tennessee Toxic Release Map
For the complete national dataset and all-state rankings, visit the US Toxic Release Inventory Map.

