Pollution in Bukhara, Uzbekistan

The quality of air in Bukhara is horrible - sometimes it's literally hard to breath and it stinks like you live in a garage. The tap water can only be used to wash dishes and for taking showers - if you want drinking water you can just order it, it's relatively cheap (you pay approximately 1 dollar for a big 20 l bottle). The city is clean, cleaner than most of European cities I'd say, there is no garbage on the roadsides. And there are also almost no parks to be found here. Basically, Bukhara is a concrete jungle.