Interesting (but incomplète yet) new website for the comparison of EU Cities' Air Quality :
www.airqualitynow.eu Lungs' cancer (often propoked by Air Pollution) is currently the worst deadly danger, it seems...
Nothing makes feel as good as a nice, fresh, clean Wind, full of nature's (forests, sea, ocean, mountaints, etc) oxygen !
Car pollution and/or confined spaces blocking free access to natural oxygen are among the worst enemies against Human health...