Pollution: Air quality deteriorates this Thursday in Lyon

On this beautiful, sunny May 1st day, air quality remains poor in Lyon, reports Atmo Auvergne-Rhône-Alpes. " A strengthening southerly wind should ensure a slight mixing of pollutants ," the air quality observatory specifies.

The ozone indicator is degraded, while air quality is also impacted by the presence of nitrogen dioxide and fine particles 2.5. Tomorrow, air quality is expected to remain broadly similar.