With the high heat comes ozone air pollution


Very high temperatures and sunshine are causing an increase in ozone pollution in many cities. The heat wave in mid-June 2022 was not spared by this deterioration in air quality.

A plume of heat considerably raises temperatures throughout France in mid-June 2022. These high, abnormal temperatures are not without risk to health, a fortiori because they occur too early, our bodies are not not ready yet. This means adopting good habits – such as hydrating more regularly, avoiding intense physical exercise, not ventilating during the day if the temperature inside is lower than outside.

Often, such a heat streak comes with another health risk: pollution. The combination of solar radiation and very high temperatures more specifically causes a peak in ozone (O3) pollution. This is valid in the capital, as well as in many other cities in France.

The index is in the red

Air quality will be poor to degraded in Ile-de-France (sic) on June 16 and 17, alert AirParif, which monitors pollution levels in the region. Evidenced by the map where red dominates, meaning that the air quality will be poor.

Ozone map in the Paris region IDF as of June 17, 2022. // Source: AirParif

The association also specifies, in a bulletin, that the information threshold will be exceeded on June 17 in the Paris region, for at least one hour. This threshold corresponds to a level of concentration of pollutants in the atmosphere above which short-term exposure presents a risk to human health », especially for populations who are particularly sensitive to it.

The ozone pollution situation does not only concern Paris, but several cities in France, as the Atmo France map currently shows.

index_atmo_17june2022
Map of June 17, 2022. // Source: Atmo

Recommendations regarding ozone pollution

The AirParif bulletin draws up a series of recommendations for vulnerable people (pregnant women, infants and young children, people over 65 or suffering from cardiovascular pathologies, people with asthma), but also for the general population.

For vulnerable people:

  • in the event of respiratory or cardiac discomfort, seek advice from a healthcare professional;
  • favor shorter outings and those that require the least effort;
  • take advice from your doctor to find out if your medical treatment needs to be adapted if necessary;
  • avoid going out in the afternoon when the sun is at its maximum;
  • avoid intense physical and sports activities (including competitions) in the open air; those of low intensity indoors can be maintained

But AirParif also provides advice for the general population:

  • in the event of respiratory or cardiac discomfort, seek advice from a healthcare professional;
  • favor shorter outings and those that require the least effort;
  • intense physical and sports activities (including competitions) indoors can be maintained.



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