That would be urban discrimination
Well if it was on local level it would be democracy in action because it would be majority rule based on local circumstances.
Sweeping regulations never work because they never apply to all circumstances. If you're living in a neighborhood where the houses are right next to each other I'd imagine a lot of people would mind the fireplace smell. We live in a pretty close community and apparently one of neighbors is burning wood because I can occasionally smell it, besides the initial "what the hell is on fire" alarm when they first started I don't mind it but I'm sure there are others that do.