In Greece, thick clouds of Sahara dust and temperatures exceeding 30 ° C. These sand clouds, which already appeared last week in Greece, made the air difficult to breathe for many people.
The Sahara is the largest source of mineral dust, releasing between 60 and 200 million tonnes per year. While the larger particles fall quickly to the ground, the smaller ones can be transported thousands of kilometers and reach all over the world. The most fragile people “should avoid outdoor exercise as well as strenuous manual work’