Air pollution peaks in three French cities

Three cities which have environmental ZPA zones (Lille, Lyon, Grenoble) published information alerts because of the lasting high air pollution. During the last week, the prefects of the southern cities Lyon and Grenoble had already alarmed the population because of a heat wave. As this meteorological situation did not change, the absence of wind and rain leads to a concentration of ozone and fine particles in urban areas. For this reason, the ZPA zones must be observed closely because circulation restrictions could be given in the middle of the week.