HIBAPRESS-RABAT
The World Meteorological Organization (WMO) states that “annual average surface dust concentrations over western central Asia, north-central China and southern Mongolia were higher in 2023 than in 2022.”
The most violent sandstorm of the year, according to the WMO, was the one that swept across Mongolia and 20 Chinese provinces over an area of more than 4 million km², and whose violent winds and dust gave the sky a worrying orange color.
It “has led to a spectacular deterioration in air quality”, exceeding “9,000 micrograms per cubic metre” in some regions, the WMO stresses.
