1 The human PBPK model predictions and experimental data indicate that exposure to ternary mixtures of. approximately 20 ppm each of toluene, ethylbenzene, and xylene will not result in significant increases in. blood levels of these chemicals compared to individual chemical exposure (Haddad et al. 1999b; Tardif. et al.
Shelby, MT. Sponsored Topics. Shelby is a city in and the county seat of Toole County, Montana, United States. The population was 3,216 at the 2000 census. Shelby is located at 48Â°30â²26â³N 111Â°51â²37â³W / 48.50722Â°N 111.86028Â°W / 48.50722; -111.86028 (48.507270, -111.860218).
Shelby County is a county located in the U.S. state of Tennessee. As of the 2010 census, the population was 927,644. It is the state's largest county both in terms of population and geographic area. Its county seat is Memphis, the most populous city in Tennessee. The county was named for Governor Isaac Shelby (1750â1826) of Kentucky. Shelby County is part of the Memphis, TN-MS-AR Metropolitan Statistical Area. It is bordered on the west by the Mississippi River. Within the Mississippi Delta, the county developed as a center of cotton plantations in the antebellum era, and cotton continued as an important commodity crop well into the 20th century.