Driving through the streets of the Russian city of Dzerzhinsk, one person spotted a number of dogs who had unusual blue and green colors, suggesting there is a chemical effect to that. Blue dogs were spotted near an abandoned chemical plant at Dzerzhinsk in Russia's Nizhny Novgorod region.strange colouring may caused by chemical waste such as copper sulphate.vibrant blue coats not a happy one.much concerned issue. it may cause health ...