After several residents complained of a strange smell in Pudong’s Waigaoqiao district last night, work safety bureau officials detected not one, but at least three toxic substances in the air. Ethanethiol, trimethylamine, dimethyl (as well as “other gases”) were all found and blamed on a nearby petroleum chemical plant. Breathing these chemicals can result in lowering of blood pressure and difficulty breathing. As if we needed any more reasons not to move to Pudong. Fun facts: ethanethiol is considered by the Guiness Book of World Records to be the smelliest substance in existence and trimethylamine is the chemical largely responsible for things like bad breath.