Bloomberg: Set aside any romantic notions of Paris in the spring. Visitors to the French capital are facing the choice of using an umbrella or wearing a mask.
Paris is suffering under a seasonal pollution crisis that may drive the concentration of particles called PM10 and PM2.5 in some areas to levels as thick as in Beijing on Thursday, according to Airparif, the citys air-quality monitor. The pollution alert was extended to Friday. The dirtiest areas are tourist hot spots including Rue Royale near Place...