This article was republished here with permission from Planet Detroit.
By Brian Allnutt, Planet Detroit
Darren Riley noticed poor air quality across much of Michigan this week when off-the-shelf air monitors from companies like IQAir and PurpleAir showed readings as high as 154 for PM 2.5 (fine particulate matter) in Detroit on Sunday – putting the monitors in the red or ‘unhealthy’ range on the Air Quality Index (AQI).