iStar said:
I live Coronel Diaz and Santa Fe... lots of dirty buses and trucks.
It really depends on your location. In 2006 I rented a temp apartment on Guise at Charcas (one block from Colonel Diaz). There were no buses and few truck and the air was OK. Santa Fe and Colonel Diaz are major bus routes, so lots of exhaust fumes are to be expected.
If you really want to see the results of the bus exhaust, go to Las Herras near Junin in the late afternoon. The air can unbelievably thick in the setting sun (yes, even in Recoleta).
Conversely, last year I was on the 16th floor of a building in the 300 block of San Martin (in the center). I was surprised how little haze was visible in the distance (especially compared to LA)..
Now, living in Nunez, I only encounter a lot of ground level exhaust on Cabildo, but there is lot of breathable air (as well as ample blue sky) within a couple blocks.
Like noise, air pollution is extremely localized here.
If you're unhappy where you are, just move.