Belfast named as best for a blissful sleep

The Northern Ireland capital had the lowest levels of air pollution at 23.12 PM10 with London having the worst at 62.9 PM10, this is no surprise given its large transport system.
The Northern Ireland capital had the lowest levels of air pollution at 23.12 PM10 with London having the worst at 62.9 PM10, this is no surprise given its large transport system.