Tuesday, January 21 2014, 02:51 PM MST
Northern Utah Under Health Alert from Air Pollution
SALT LAKE CITY (AP) — The Salt Lake region remains under a health alert from high soot counts, with no relief in sight.
A winter inversion similar to an icy fog is trapping tailpipe and other emissions in the mountain valleys of northern Utah.
Air-quality regulators predicted Tuesday would mark a 22nd day of toxic air for the Salt Lake region this winter, matching a number hit around the same time last year.
The soot counts soared to 56 micrograms per cubic meter in Salt Lake and Davis counties Monday, nearly 50 percent over the federal health limit.
Cache County also is locked under a blanket of air pollution. Soot counts there hit around 45 micrograms per cubic meter Monday.
Officials are banning wood-burning and urging people to drive less.
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