Friday, May 24, 2013 | 12:36 p.m.
An air quality advisory has been issued for this weekend because of concerns about smoke from a Southern California wildfire making its way into the Las Vegas Valley.
The fire started after what was supposed to be a controlled burn got out of control and has impacted about 800 acres in San Diego County.
The Clark County Department of Air Quality issued the advisory for ground-level ozone and smoke through Sunday.
Officials said the level of air pollution is not currently unhealthy, but meteorological conditions may cause smoke to migrate into Clark County. The department will post an alert on the forecast page of its website if unhealthy levels occur.
High levels of smoke, air pollution and ground-level ozone can cause breathing and respiratory problems, especially in children, the elderly and people with respiratory diseases.