A picture taken on December 5, 2016 from Saint-Germain-en-Laye shows a view of La Defense business in a smog, on December 5, 2016. Pollution reaches a peak in Paris on December 5, 2016. (Photo/Agencies)
RIGHT BG
A picture taken on December 5, 2016 from Saint-Germain-en-Laye shows a view of La Defense business in a smog, on December 5, 2016. Pollution reaches a peak in Paris on December 5, 2016. (Photo/Agencies)
