Summer will soon be here and that can mean high levels of air pollutants in our air, specifically ozone and small particles, commonly known as smog.

Meteorologists declare “Air Quality Action” days when they project that weather conditions are conducive for unhealthy air pollution. In 2016, the Pennsylvania Department of Environmental Protection (DEP) called six action days for the Susquehanna Valley.

We should heed those warnings. Recent scientific studies conclude that short-term exposure to unhealthy air pollution can have significant adverse effects on pregnant women, children, the elderly, and even the general population–especially those with pre-existing conditions such as asthma. Short term symptoms resulting from breathing high levels of ozone and fine particulate are chest pain, coughing, nausea, throat irritation, and congestion. These pollutants also aggravate bronchitis, heart disease, emphysema, and asthma—and can increase risks of stroke. Children, senior citizens, and those with asthma or other respiratory problems are urged to limit outdoor activities when an action day is predicted.

Air Quality Action days are often declared when there is little wind and when the amount of ozone or particles in stagnant air could exceed federal health standards. The DEP monitors local and regional air quality. Local television and radio stations alert the public when an Air Quality Action day is predicted. Check your newspaper’s websites as well. The Clean Air Board of Central Pennsylvania also monitors pollution levels and posts notices at this website when DEP declares an Air Quality Action day.  Stay informed!