Potentially Toxic Substance Found In Chicago Air
Tuesday, September 30, 2008 - 14:35
in Earth & Climate
Although the industrial compounds known as polychlorinated biphenols or PCBs have been found in previous air samples collected in the city of Chicago, a new study of Chicago air sampled between November 2006 and November 2007 found PCB11, a byproduct of the manufacture of paint pigments and a potentially toxic substance, present throughout the city.