Heatwave: fine particle pollution alert in the departments of the Pyrenees, how to protect yourself?

The regional air quality observatory alerts this Saturday to an episode of pollution expected in five departments of Occitania.

Atmo Occitanie* predicts an episode of pollution in five departments this Saturday, June 18. the Gard is ozone red alert and the four departments of the Pyrenees chain (Hautes-Pyrénées, Haute-Garonne, Ariège and Pyrénées-Orientales) en orange vigilance for PM10 fine particles (which include particles with a diameter of less than 10 µm).

An episode of PM10 particle pollution is expected in the departments of Hautes-Pyrénées, Haute-Garonne, Ariège and Pyrénées-Orientales, explains Atmo.
An air mass loaded with desert particles coming from the Sahara on the one hand, and dust from major fires in northern Catalonia, on the other hand, are currently causing an increase in the concentration levels of this pollutant on the massif. Pyrenean, with an overrun of the information threshold scheduled for this Saturday.

Improvement on Sunday

Weather conditions (high temperatures, low winds) lead to the formation of ozone. The concentrations were to exceed for the second consecutive day the threshold of information and recommendations in the Gard.

The persistence alert procedure was implemented for this day by the Gard prefecture. Concentrations are also high in the other departments, without however exceeding the information threshold.

The ozone and particulate matter concentrations are expected to decrease on Sunday due to more dispersive weather conditions, in particular a stronger wind. An update of these Internet users will be carried out on Sunday morning, in particular with regard to Internet users.


The vulnerable populations (pregnant women, infants and young children, people over 65, people suffering from cardiovascular pathologies, heart or respiratory failure, people with asthma) and sensitive (people who recognize themselves as sensitive during pollution peaks and/or whose symptoms appear or are amplified during peaks) are invited in the event of PM10 particle pollution to:

  • movement limiter on major highways and around them, during peak periods,
  • limiting physical and sporting activities intense (including competitions), both outdoors and indoors.
  • postpone activities which requires the most effort.

In the event of an ozone pollution episodethey are invited to:

  • output limiter during the afternoon.
  • limiting intense physical and sporting activitiess (including competitions) outdoors; those inside can be maintained.

In any case, in case of discomfort respiratory or cardiac (for example: shortness of breath, wheezing, palpitations):

  • take advice from your pharmacist or consult your doctor or contact the local health center
  • (when set up); prefer outings
  • shortest and those that require the least effort; take advice

with your doctor to find out if your medical treatment needs to be adapted if necessary.

  • Finally in the general population, Atmo the following recommendations: reduce physical activities
  • and intense sports (including competitions). them physical activities and sports intense (including competitions)inside can be kept
  • . in case of respiratory or cardiac discomfort (for example: shortness of breath, wheezing, palpitations), take advice
from your pharmacist or consult your doctor.

* Atmo Occitanie is the Observatory approved to monitor air quality in the territory of the Occitanie region. Atmo Occitanie is part of the ATMO France federation.

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