Further allergy warnings in France as pollen spikes continue

Allergy sufferers across France have been given further warnings this week, as the mild weather leads to an early onset of pollen. 

Sunny conditions and a lack of rain to clear the atmosphere, coupled with gentle winds, are ideal for pollen dispersion across the country.

It comes after warnings over extremely high Alder pollen were raised last week.

Pollen warnings are common from March onwards, although unusual in such intensity so early into spring.

Residents and visitors who suffer from hayfever will likely suffer typical symptoms including a runny nose, sneezing, coughing, and conjunctivitis.

Health warnings have not been raised alongside the pollen warnings, but those who suffer from a pulmonary condition such as asthma should ensure they have medication or other aids with them.

The combination of Saharan sand alongside the pollen may be a particular nuisance.

What pollen, and where? 

Two main pollen-types are behind the increase in warnings: Cypress and Alder, although Ash, Pine, Hazel and Birch pollen may also be present. 

The former is more prevalent in the south, particularly where winds may be stronger at the start of the week and rainfall is not enough to clear the atmosphere.

The Auvergne-Rhône-Alpes, Nouvelle-Aquitaine, Occitanie, Corsica and Provence-Alpes-Côte d’Azur regions are most at risk, but Cypress pollen may cause issues as far north as the Loire river. 

These southern regions are also those most at risk of Poplar pollen, with moderate levels throughout the south.

Alder pollen remains in the atmosphere throughout France following last week’s spike.

Moderate to high warnings are given across all of France..

Normandy and the low-lying east and central areas are set to see more Alder pollen than the south, whereas the western coastline and Alpine regions should have lower levels.

Low to moderate concentrations of Ash pollen are present across most regions, including the west and south. 

Hazel pollen remains low but persistent throughout France, and Birch pollen is expected in Brittany.

While Ash, Hazel, and Poplar can be less intense than Cypress or Alder, it only adds to the potential amount of pollen in the air.

Online air quality map 

You can use the official AtmoFrance map to assess air quality in France, including pollen levels. 

Similar to state forecaster Météo France, it provides a two-day forecast of conditions, and covers the risk of several pollens in the atmosphere.

This includes Alder, Ragweed, Mugwort, Birch, Olive, and Grass pollens.

The map below shows pollen levels on Wednesday (March 4). 

In addition to the map, you can use the website to search for specific information about your commune.