There isn't a local election coming up is there? I recall going to Istanbul one February and you could see the air you were breathing as well as smelling and tasting it. I asked a Turkish colleague about this and he told me that there was an election coming up and the AKP had "sweetened" the poorer part of the electorate by handing out free "brown coal" - i.e. lignite; a cheap, smelly, smokey form of coal of which Turkey has quite a lot. So all the home fires were burning!
I don't blame either the poor people for burning the coal nor even the politicians for "bribing" the electorate - our politicians all do it at election time; we just have different methods (e.g. state pensioners get £100 each, or £200 per household, for their winter fuel). I merely offer it as an explanation of why the air was so bad back then in Istanbul.