Here it is translated.
FOR THE MOMENT THE CONCENTRATION OF FINE PARTICLES DOES NOT EXCEED THE RECOMMENDATION THRESHOLD IN SAINT-MARTIN.
"A big episode of sand haze will be observed all this week" announced Météo France Antilles Guyane yesterday, Monday 17 June. As we can see on the satellite photo this episode concerns the entire Caribbean, St. Martin included.

"A worsening is expected Thursday with a higher concentration of particles in the atmosphere.The air will be very dry and very foggy and will greatly limit the frequency of possible showers," continued Météo France.

Gwad'air, approved association for monitoring air quality in Guadeloupe, triggered the Orange level for the entire archipelago yesterday and today in agreement with the prefecture of Guadeloupe. "'The levels of fine particles are high and today exceed the threshold of information and recommendation set at 50 micrograms per cubic meter, for the protection of human health," she said Monday, June 17.

On the other hand, the measurements made yesterday in Saint-Martin by the mobile station of Gwad'air indicate rates lower than those of Guadeloupe. The concentration of fine particles does not exceed the recommendation threshold and the Orange level is therefore not triggered.

For now Saint-Martin is concerned by this episode of sand haze, but less than the archipelago of Guadeloupe. It remains to watch how rates change during the week.