JUNE 24, 2005 - Posted at 5:13 p.m. CDT
WEST MEMPHIS, AR - Arkansas environmental regulators have put in two ozone monitoring sites in Crittenden County and plan to add more to study the county's air quality.
The temporary monitors will track ozone levels in the county, which has been declared out-of-compliance with federal standards. The county's air quality is affected by its closeness to Memphis, Tennessee.
Areas that exceed allowable ozone levels must show the federal Environmental Protection Agency they're serious about cleaning their air. Some such efforts have included mandatory vehicle-emissions inspections, or requiring use of more costly but less-polluting reformulated gasoline.