Air pollution is responsible for 6.5 million deaths and various health problems of people around the world. 92% of the world population lives in places where air quality levels do not meet the limits set by WHO. The major sources of air pollution are the transport, household fuels, burning of waste, power plants fueled by coal, and industrial activities. In France, several cities exceed the limits as well (annual average concentration: 10 μg/m3). Tourism-review.com presents the top 5 French cities with the worst problems with air pollution.