I've lived in both rich(ish) and poor(ish) areas of London over the years. Clapham, Fulham/West Brompton, and Maida Vale in the "rich" west. Whitechapel, Poplar, and the Isle of Dogs in the "poor" east.
It is my general observation that the "rich" areas suffer more from traffic congestion and pollution, because more people own cars and more of those cars tend to be giant diesel Range Rovers and such. In the east it seems like while there are still a lot of parked cars everywhere, people don't actually drive them around as much, choosing the bus/train/bike/feet more often for everyday travel.
Also worth remembering that even the "poor" parts of London are still pretty rich by overall UK standards.
It is my general observation that the "rich" areas suffer more from traffic congestion and pollution, because more people own cars and more of those cars tend to be giant diesel Range Rovers and such. In the east it seems like while there are still a lot of parked cars everywhere, people don't actually drive them around as much, choosing the bus/train/bike/feet more often for everyday travel.
Also worth remembering that even the "poor" parts of London are still pretty rich by overall UK standards.