cotinie? do you mean "nicotine'? second hand smoke exposure in a closed room or poorly-ventilated area can be the same as smokine 1/2 a cigarette yourself. nicotine levels should not be that high in a second-hand smoker but there are many more toxic chemicals in tobacco than just nicotine. don't allow anyone to smoke around you.
how high can cotinie levels be in a second handsmoker?