Air Pollutant Watch List
The purpose of the Air Pollutant Watch List is to alert technical staff to cities or counties within the state that have areas with elevated air concentrations of special interest pollutants.
| County | City | TCEQ Region | Map and Supporting Documentation | Year Added | Pollutant of Interest | Area Boundaries |
| Bastrop | Bastrop | 11 | APWL1101 | 2007 | hydrogen sulfide | North to Northwest of Pershing Blvd./CR-403 and Oak Hill Cemetery Road Southwest of Oak Hill Road/CR-361 Southeast of Impact Road East of CR-48 |
| Bowie & Cass |
N/A | 5 | APWL0501 | 1999 | hydrogen sulfide | North of FM 74/249 E South of Highway 151/245 East of Highway 59 West of TX/LA/AR state line |
| Brazoria | Freeport | 12 | APWL1201 | 2005 | arsenic cobalt nickel vanadium |
North of Highway 36/Highway 288/Old Quintana Road (extended to Gulf of Mexico) South of Highway 332 of TX Avenue/Highway 1765 East of Brazos River West of the Gulf of Mexico) |
| Dallas | Dallas | 4 | APWL0401 | 2004 | nickel | North of McGowen Street South of the Trinity River East of Cedar Crest West of Sargent Road and the Union Pacific Railroad as it extends north to the Trinity River |
| El Paso | El Paso | 6 | APWL0601 | 2004 | hydrogen sulfide | North of Highway 375 South of Yarbrough East of IH-10 West of Border Highway / Plant Road |
| Galveston | Texas City | 12 | APWL1202 | 2001 2003 2004 |
propionaldehyde benzene hydrogen sulfide |
South of TX Avenue/Highway 1765 East of Highway 146 West of Galveston Bay (West Bay) |
| Harris | Lynchburg Ferry Area | 12 | APWL1204 | 2002 | styrene | North of LaPorte Freeway/ Highway 225 South of East Freeway/Highway 73/IH-10 East of E. Beltway 8 West of Battleground Road/Crosby Lynchburg Road |
| Harris | Galena Park | 12 | Boundary Document |
2000 | benzene | North of Highway 225 South of Northside Belt Railroad (P.T.R.A.) and Industrial Road East of the East Loop of IH-610 West of Olin Mathieson Road |
| Jasper | Evadale | 10 | APWL1001 | 2003 | hydrogen sulfide | South of FM-2246 East of FM-105 |
| Jefferson | Beaumont | 10 | APWL1002 | 2003 |
sulfur dioxide |
North of a Neches River tributary near Highway 380/M.L.K. Jr. Parkway Northeast of Highway 380/M.L.K. Jr. Parkway Southwest of the Neches River |
| Jefferson | Port Arthur | 10 | APWL1003 | 2001 | benzene | North of Sabine Lake Southeast of Highway 73 Frontage Road East of J.D. Wildlife Management Area West of Savannah Avenue (extended to Sabine Lake) |


