The developed procedure allowed the individual identification and quantification of benzene and toluene and the determination of the sum of ethylbenzene and xylenes. As it can be seen, benzene was undetected in actual samples, probably as a result of the easy evaporation of this compound, as well as its low concentration in petroleum derivatives (less than 5%, v/v).
Shelby, North Carolina. Shelby is a city in and the county seat of Cleveland County, North Carolina, United States. It lies near the western edge of the Charlotte combined statistical area. The population was 20,323 at the 2010 census.
Shelby County is the 5th largest county in Alabama. The average home value there is $193,000 and home owners pay an average of $959 in property taxes annually. Thatâs the highest average property tax payment of any county in the state, but it is still lower than the national average (which is about $1,300).