Dr. Payal Kohli, a health expert for 9 News Australia, said she provided guidance on managing health risks associated with poor air quality this week.

Air quality alerts are critical because pollutants and wildfire smoke can trigger severe medical emergencies in vulnerable populations and healthy individuals alike. Understanding the Air Quality Index (AQI) allows the public to make informed decisions about outdoor activity to prevent respiratory distress.

Poor air quality, frequently caused by wildfire smoke, significantly raises the risk of cardiac events and respiratory problems. According to data, exposure to heavy smoke during wildfires can increase the risk of out-of-hospital cardiac arrests by up to 70% [1]. This spike in risk underscores the danger of particulates entering the bloodstream and affecting heart function.

Environmental factors often compound these health risks. In some regions, such as Northeast Ohio, high temperatures accompanying poor air quality have reached 90 degrees Fahrenheit [2]. The combination of extreme heat and pollutants can place additional strain on the cardiovascular system, making it harder for the body to regulate its internal temperature.

Dr. Kohli said she explained the meaning of the AQI to help citizens identify when it is unsafe to be outside. When the index indicates poor air quality, health experts recommend limiting outdoor exertion, and keeping windows closed to prevent smoke from entering homes. These steps are designed to reduce the inhalation of fine particulate matter.

For those with pre-existing conditions, such as asthma or chronic obstructive pulmonary disease, the risks are even higher. Dr. Kohli said that staying indoors and using air filtration systems can mitigate these dangers. Monitoring local AQI reports allows individuals to time their outdoor activities for periods when the air is cleaner.

“Exposure to heavy smoke during wildfires raises the risk of out-of-hospital cardiac arrests up to 70%.”

The intersection of rising global temperatures and increased wildfire frequency is transforming air quality from a seasonal concern into a chronic public health threat. By linking AQI levels to specific cardiac risks, health officials are shifting the conversation from simple respiratory irritation to the prevention of acute, life-threatening cardiovascular events.