Rock County meets ozone standards
Rock County’s three-year average level in 1999 was 87 parts per billion. In 2002, changes to the Clean Air Act made 85 parts per billion the effective standard.
Achieving the eight-hour ozone standards means Rock County residents breathe cleaner air than those in larger metropolitan areas such as Chicago. The cleaner air also allows Rock County businesses to avoid more costly air pollution controls that are needed to bring “non-attainment” areas into compliance.
For more information, call (608) 755-3181.