Poaceae don’t go on the offensive! If the top of France move up a gear, for pollens of poaceae, weather cool down ardors of those grasses. Weather conditions remaining mixed for next week, pollens of poaceae well be present on the South of Seine with a medium allergic risk and in the North of this river with a low allergic risk. Some area stay more exposed to this pollen: allergic risk to poaceae will be high in the Rhone and Garonne valley.