Several central Ohio counties are under an Air Quality Alert Tuesday due to elevated ozone levels. Mid-Ohio Regional Planning Commission (MORPC) issued the alert for Delaware, Fairfield, Franklin and Licking counties Tuesday afternoon, warning that air pollution levels are expected to be unhealthy for sensitive groups. https://www.10tv.com/article/news/local/air-quality-alert-columbus-ohio/530-3fe2299b-b8d3-4463-8cd8-c22e92e7d9ab Why the alert was issued As a weak upper-level ridge of high pressure passes over Ohio, partly sunny skies, and high temperatures near 90 degrees will support ozone production, MORPC says. Light and variable surface winds will allow smoke and other pollutants to accumulate in Columbus, elevating particle levels and ozone precursors. Air Quality Index (AQI) levels are forecasted to be 101 on Tuesday. The AQI scale runs from 0-500, where the higher the AQI value is, the greater the health concern. When levels reach above 100, air quality is considered unhealthy for sensitive groups, prompting MORPC to issue an Air Quality Alert. Who is at risk? Active children, the elderly and people with asthma and COPD are more likely to suffer an increase in the number and severity of symptoms during an Air Quality Alert. To decrease the potential for health issues, sensitive groups are urged to limit prolonged outdoor activity or plan outdoor activities for the morning. Those who are experiencing breathing difficulties should consult their doctor. How to help reduce pollution People are asked to help reduce ozone by taking the following steps: Carpool. If it’s possible, bike, walk or take the bus instead of driving alone. Refuel your vehicle after 8 p.m. Avoid topping off your tank at the gas station as spilled gasoline pollutes the air when it evaporates. Do not idle your vehicle. Exhaust contributes to air pollution. Mow your lawn in the evening hours and avoid the use of any gas-powered lawn equipment.