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In brief

Pollution alert: Saharan wind’s fine particles exceed alert threshold

The Principality's skies are expected to be hazy due to desert dust © Pixabay / Propix-art 

It is no longer an unusual phenomenon. In fact, it has become quite common over the past few years.


A veil of dust from the Sahara desert covered Monaco and the Côte d’Azur yesterday, bringing with it a spike in pollution caused by PM10 fine particles.

As the Environment Department predicted, the information threshold of 50 µg/m3 was exceeded yesterday. Today, particulate matter in the atmosphere is building up due to weather conditions, and the alert threshold is likely to be exceeded, with concentrations of fine particulate matter in excess of 80 µg/m3.

The situation is not expected to improve until Friday, when the fine particles should be able to disperse more readily.

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In anticipation, the Prince’s Government is calling for vigilance and recommends that vulnerable and sensitive people in particular:

  • Avoid intense outdoor physical and sports activities.
  • Avoid going out during the hottest part of the day;
  • Consult a pharmacist or doctor if they experience respiratory or cardiac distress.

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Motorists are also asked to opt for low-emission means of transport for short distances, and to choose public transport and car-pooling instead.

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