Those sensitive to chemicals are canaries
http://www.theolympian.com/2011/05/07/1643381/those-sensitive-to-chemicals-are.html
http://www.theolympian.com/2011/05/07/1643381/those-sensitive-to-chemicals-are.html
"May is Multiple Chemical Sensitivity Awareness month. For those of us highly sensitive to chemicals such as those used in perfumes, colognes, pesticides and construction materials (among others), this is our opportunity to educate the masses on this very real and devastating condition."