BBC News (London, March 10) – When the Disney Corporation sent an exhibition of its archive material to China last year, officials were concerned about Beijing’s notoriously dirty air damaging the art. Disney turned to Ken Suslick, a professor emeritus of chemistry at Illinois, and his opto-electronic pollution detector, an array of carefully calibrated dyes that change color when exposed to different odors. “One shouldn't underestimate the importance of one’s own nose, we do take it for granted but it is not a quantitative tool,” Suslick says.