Not to my knowledge. EVs are received with EXP (or, at level 100, when you would normally get EXP), and you don't get EXP in those areas. And due to the nature of the PWT and Subway, it would be best to EV train before entering them anyway if you're going to.
I think you probably get EVs in Black Tower and White Treehollow - you do get EXP, after all.
I'm almost positive that you do. --- glladgrat Don't get mad, get gllad.