Learn to Hunt
Report Your Harvest
Current Fishing Report
Taking Kids Fishing
Iowa's natural resources plates include the state bird and flower, pheasant, eagle, buck and a Brook trout. Support conservation in Iowa by buying a natural resource plate for your vehicle.
Natural Resource Plates
Experience Iowa's natural beauty and all the fun our state parks offer. Make your online reservation for state park cabins, camping sites, shelters and lodges.
Support conservation in Iowa by buying a natural resource plate for your vehicle.
Natural Resource Plates
Iowa DNR Customer Service
Mon - Fri, 8:00am - 4:30pm CST
Submit Online Inquiry
Information / Records Requests
Contact Information by County
Breathing ground-level ozone can trigger a variety of health problems including chest pain, coughing, throat irritation, and congestion. It can worsen bronchitis, emphysema, and asthma. Ozone also can reduce lung function and inflame the lining of the lungs. Repeated exposure may permanently scar lung tissue.
Healthy people also experience difficulty breathing when exposed to ozone pollution. Because ozone forms in hot weather, anyone who spends time outdoors in the summer may be affected, particularly children, outdoor workers and people exercising. Some people who don't fall into any of these categories may also find themselves sensitive to ozone.
For detailed information about how ozone affects human health, go to
EPA's "Health Effects of Ozone in the General Population" web page.
Ozone can reduce lung function, making it more difficult to breathe deeply and quickly. Those with lung diseases, children, outdoor workers, and those who exercise outdoors should reduce activity levels or stay indoors when ozone levels are elevated.
Ozone damages vegetation and ecosystems by inhibiting the ability of plants to open the microscopic pores on their leaves to breathe. It interferes with the photosynthesis process by reducing the amount of carbon dioxide the plants can process and release as oxygen.
Elevated levels of ozone leads to reduced agricultural crop and commercial forest yields, reduced growth and survivability of tree seedlings, and increased susceptibility to diseases, pests and other stresses such as harsh weather.
Dicot species, such a soybean, cotton and peanut, are more sensitive to yield loss caused by ozone than monocot species such as sorghum, field corn and winter wheat. The USDA provides
additional information on the effects of ozone air pollution on plants.