Dr. Larry Wolk, chief medical officer of the Colorado Department of Public Health and Environment, said he was concerned not only about Coloradans’ lungs, but also about a sort of smog-induced malaise. “People who live here in Colorado are accustomed to sunny days,” he said. “And to have so many cloudy days and rainy days and now add on top of it the brown haze as a result of wildfires — I’m concerned about physical health, but also mental health.”