are looking to get tough on diesel smoke near Las Vegas in hopes of decreasing
air pollution. A state committee next month will consider recommending that
Nevada tighten its relatively lax standard for diesel smoke, the Las Vegas Review-Journal
tests diesel smoke for opacity, or thickness. Diesel there can be 70 percent
opaque, 30 percentage points higher than in most states.
new Air Quality Management Department is expected to launch a $300,000 study
of diesel's contribution to air pollution in the Las Vegas Valley. The Valley
has exceeded an upcoming federal ozone standard on three occasions this year.