Oh, yeah, MysteryX I see what you are getting at now. You mean putting citizens back to work, not workers back to work. That can be a real pain. Clicking on the city tile and cursor through all your towns indiscriminately doesn't really help since it puts the remainder back to work and to tax collectors or jokers, even if you had them as scientists (or whatever) before.
As I recall, MapStats retains the red highlights for pollution unless you reload for some reason. As it does with towns that grew. A while back when I relied heavily on it, I'd start the turn with clean pollution until there was nothing left to clean, then Alt-Tab to MapStats, get the name of the first city that had pollution, go back to Civ and fix that town's citizen assignments, Alt-Tab to MapStats, lather, rinse, repeat. Problem is that after 100 cities or so, the name of the city doesn't help much -- scanning the list of city names takes forever, and on huge maps, zooming out isn't a whole lot better.
Probably not the best way to do it, but anymore my end of turn routine is always to hit F1 and wheel-mouse through the list for trouble -- more sad than happy and shrinking food production. Doesn't catch a town that was still growing, to be sure, but it will find at least 3/4 of the towns that were polluted at that stage in the game, and that's enough for me. The rest I'll catch when the pop goes up again.