Quick Thaw May Bring Unexpected Air Issues
Air quality is typically a concern during the summer months, but similar issues can also arise in the winter when snow melts rapidly.
Clean Air Action Days
During the hotter months, you will often hear about Clean Air Action Days. These are intended to protect public health, particularly for children, older adults, and individuals with respiratory conditions such as asthma.
In Michigan, Clean Air Action Days are declared by EGLE when elevated levels of ozone or particulate matter are expected, signaling poor air quality that may pose health risks to sensitive populations.
Typically a Clean Air Action Day is announced in advance when weather conditions are expected to create high pollution levels.
When a Clean Air Action Day is announced in the warmer months it is suggested that people consider carpooling, walking, biking, or public transportation when going to work. People should avoid using gas-powered lawn mowers, and refueling vehicles.
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Air quality issues aren’t limited to the warmer months; problems can also arise during the winter.
What Rapid Snowmelt Means for Local Air Quality
Only a few weeks ago, temperatures in parts of West Michigan fell to -12 degrees. Now, they’re in the upper 40s and the snow is melting rapidly. That quick thaw can contribute to notable air quality issues.
When snow melts quickly, pollutants that were trapped in the snow, such as particulates from vehicle exhaust, industrial emissions, and other chemical compounds, can be released back into the air.
Add light winds and high humidity, and it can lead to elevated, stagnant air pollution levels. So, as tempting as it may be to get outside during the current rapid snowmelt, the fog that often accompanies it can be harmful for those with respiratory issues.
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