Hazy skies due to out-of-state fires

Denver Post - Hot, dry weather and wildfire smoke from out-of-state fires have contributed to lower air quality across the Front Range and Denver metro through Friday afternoon, Colorado public health officials said. State officials expect a rise in ozone and fine particulate levels that will be unhealthy for older adults, children, and people with heart or lung disease, according to the Colorado Department of Public Health and Environment. The agency issued an action day alert at 4 p.m. on Thursday, which is set to last until at least 4 p.m. on Friday. Communities covered by the alert span an urban corridor from Douglas County to the south and Larimer and Weld counties to the north, including Denver, Boulder, Fort Collins, Loveland, and Greeley. It was quite hazy across Northeastern Colorado on Thursday, and this haze could persist into today. People who are sensitive to air pollution should not spend long periods of time outside or participate in heavy exercise outdoors, state officials said.