Pollen allergies affect people in Nantes, France. They occur when the body mistakenly sees pollen as harmful. Symptoms include itchy eyes, sneezing, and runny nose.
Tree pollen is the main allergen in Nantes. Oak, ash, and hazel trees produce pollen from late March to early May. Birch trees produce pollen in April.
Grasses and weeds also produce allergenic pollen. Grass pollen season starts in May and lasts until July. Weed pollen season begins in July and ends in September.
Nantes has a humid oceanic climate, which affects pollen levels. High humidity reduces pollen dispersal, making symptoms less severe. However, windy days can increase pollen counts.
When pollen counts are high, we suggest doing these things to help with allergies, especially on windy days when pollen is flying around.