OHIO AIR QUALITY INDEX
Ohio Major Cities Air Quality Index>
Columbus Air Quality Index
Cleveland Air Quality Index
Cincinnati Air Qualtiy Index
National Air Qualtiy Index
About the Air Quality Index
You’re exposed to pollution any time you breathe polluted air. But when you exercise, do yard work or other strenuous activities that increase your breathing rate, you take more pollution into your lungs. You can reduce your exposure by using AQI forecasts to help you plan your day. When the forecast calls for elevated levels of pollution, protect your health by reducing your exposure – especially if you are in a sensitive group.
Air quality forecasts are provided by State and local agencies, using U.S. EPA's Air Quality Index (AQI), an metric for reporting daily air quality. It tells you how polluted your air is, and what associated health effects might be a concern for you. If air quality is low, you can cut back on strenuous activities. Walk instead of jog, or do something indoors.
One of the primary measures of air quality is PM2.5, which represents fine particulate matter—tiny particles in the air that reduce visibility and cause the air to appear hazy when levels are elevated. Outdoor PM2.5 levels are most likely to be elevated on days with little or no wind or air mixing. There are outdoor and indoor sources of fine particles. Outside, fine particles primarily come from car, truck, bus and off-road vehicle (e.g., construction equipment, snowmobile, locomotive) exhausts, other operations that involve the burning of fuels such as wood, heating oil or coal and natural sources such as forest and grass fires. Fine particles also form from the reaction of gases or droplets in the atmosphere from sources such as power plants.
This graph shows air quality readings for monitors in Ohio. Data come from Ohio EPA