DES MOINES – As much as we love fireworks, drifting smoke can cause breathing problems for some. Brain Hutchins, Iowa Department of Natural Resources Air Quality Supervisor, says whether you are attending a display or celebrating in your backyard, sensitive populations are advised to take precautions. “First, if your family or friends suffer from asthma, respiratory difficulties, or heart disease; it’s important for them to stay upwind, a safe distance from fireworks smoke,” Hutchins says. “The elderly and children are also vulnerable to high levels of smoke.”