The Iowa Department of Natural Resources has issued an air quality advisory for all counties in the eastern half of Iowa, approximately from Interstate-35 to the east. Fine particulate levels near or above EPA health standards are expected to remain elevated today and persist in these areas through tomorrow. Elevated levels of fine particulates may be a concern over the next several days as the smoke moves through the state. The DNR recommends people reduce long or intense outdoor activities and take more breaks during outdoor activities until air quality conditions improve.