blog posts The 'toxic soup' in which firefighters work has become the centerpiece of intensive research Nov 16, 2017 11:15 am by WMAQ-TVIllinois in the News Share on Facebook Tweet Email Images WMAQ-TV (Nov. 15) 'Smoke is made of a whole lot of different things,” says Illinois research scientist Gavin Horn 'And the smoke depends a whole lot on what’s burning.' Share on Facebook Tweet Email