Location matters
As Sandy is situated by the A1 however, it means its air quality is very poor – reaching dangerous levels!
18. Royal Leamington Spa
A central England town is another unlikely place on this list. Not least because spa towns were meant to benefit health, not endanger it!
[dx_custom_adunit mobile_id=”RTK_qQCt”]
Nevertheless, high pollution levels have been measured here, partly explained by lots of tall buildings keeping the car fumes and dirt in the air.