39 STATES FAIL NEW OZONE STANDARD
The U.S. Environmental Protection Agency has classified 474 counties in 39
states as not in compliance with a new standard for measuring ground-level
ozone, the primary component of smog. Depending upon the severity of
the problem, the counties will have from 2007 to 2021 to comply. Areas with
more severe pollution levels will have longer time frames but may also have to
apply more rigorous control measures--the type that southern California has been
implementing for years: auto emissions testing, reformulated gas, pollution
permits for large manufacturing facilities, etc. The new classifications
stem from the EPA’s 1997 decision that the health risks associated with smog
required lower ozone thresholds. Acceptable ozone levels cannot exceed 85 parts
per billion over an eight-hour period rather than 120 parts per billion over a
one-hour period.