September 4, 2004
Haze in Chicago webcam
To provide an indication to how polluted it is in the midwest, here is a webcam image of Chicago (compare to the clear day Chicago). PM2.5 concentrations in Wisconsin and Illinois ranged as high as 45 ug/m3.
To provide an indication to how polluted it is in the midwest, here is a webcam image of Chicago (compare to the clear day Chicago). PM2.5 concentrations in Wisconsin and Illinois ranged as high as 45 ug/m3.