Actually the pollution is not as bad as people always portray it.
It is getting better. Cars are getting cleaner these days. It's mostly the public transport busses which are still fuming black clouds of smoke through the streets.
But Bangkok isn't a pedestrian city anyway. And why would you want to walk with those low transport prices?
As for the TPop: It's actually pretty good. Now most of the stuff you hear on the radio in Thailand is pretty soft. Lot's of girlie-lovesong stuff. Which is not bad if you're into it. Nicole Theriault is a very good example because she can sing in perfect English and her music is very well produced.
But i was very surprised when i found out Thailand has some great metal bands. I heard a few songs in a restaurant which were very good. It turned out to be a band called "Big ***" (yes, they're really called that) and they make some great Nu-Metal (Linkin Park, Papa Roach, P.O.D. - that sort of music).
So i bought their album at a cd-shop and grabbed a few more albums, from the same rack (the covers looked cool

).
One cd was from a band called Stone Metal Fire. They sound like a classic hard-rock band with very good guitar solo's.
Another cd was from Jirasak Panpun and this one was even better than Big ***. Again some great sounding Nu-Metal and this guy produces it himself.
Just like it's the case with Japanese music, it's a shame it doesn't reach the rest of the world. But i will definately look for more, next time i'm in Thailand.
Peter