Deteriorated air quality this Saturday in Lyon

Despite the return of rain, air quality remains poor this Saturday, July 19, but should improve during the day.
Despite worsening weather conditions in the capital of Gaul, air quality remains poor this Saturday, July 19. A particularly high concentration of multi-pollutants and ozone will be expected throughout the day.
However, the Atmo indices are expected to improve throughout the day. The Atmo Auvergne-Rhône-Alpes website states: "Weather conditions are expected to be more unsettled, with wind and occasional thunderstorms. A cooling of temperatures is also expected over the weekend. This will be favorable for air quality, and ozone concentrations are expected to decrease, with average indices in the west and degraded in the east, depending on the weather pattern."
Lyon Capitale