US-Mexico border witnessed record dust storms in 2025, while China experienced its most severe sand and dust storm in a decade, according to the latest World Meteorological Organization (WMO) Airborne Dust Bulletin. Although the global average dust concentration remained broadly unchanged from 2024, the report highlights alarming regional extremes that disrupted transportation, damaged public health, and affected economic activities. Around 2 billion tonnes of dust enter Earth’s atmosphere every year, primarily from the Sahara, Gobi, and Arabian deserts, impacting more than 150 countries.

The WMO warns that climate change, prolonged droughts, land degradation, and poor land management are intensifying the frequency and severity of regional dust storms.

China Records Its Worst Dust Storm in 10 Years

In April 2025, a massive dust plume originating in Mongolia swept across northern China, producing the country’s most intense, longest-lasting, and geographically extensive dust storm in a decade.

The storm pushed PM10 (inhalable particulate matter) concentrations above 1,000 micrograms per cubic metre across northern China, while some locations recorded 3,000-4,000 μg/m³, far exceeding the World Health Organization’s recommended air quality guidelines. The hazardous air affected millions of residents, significantly reducing visibility and increasing respiratory health risks.

Also Read: Australia And India Sign Uranium Export Deal During PM Modi’s Visit

Historic Dust Activity Along the US-Mexico Border

• The US-Mexico border witnessed record dust storms in 2025, with El Paso, Texas, experiencing 50 dust-weather days, more than double its long-term annual average and the highest number recorded since the infamous Dust Bowl era of the 1930s.
• One of the most severe events occurred on 18 March, when continuous dust storm conditions persisted for more than six hours.
• Daily average PM10 concentrations reached 2,064 μg/m³, while hourly readings peaked at 8,142 μg/m³-the highest level recorded in Texas since air quality monitoring began nearly three decades ago.

The extreme conditions forced temporary closures of schools, airports, and highways, led to cancelled public events, and contributed to several fatal road accidents due to near-zero visibility.

Also Read: Deadly Bacteria Found In US Wastewater System Linked To Meta’s AI Data Center

North Africa Remains the World’s Largest Dust Source

The report identifies the Bodélé Depression in Chad as the world’s most active dust-producing region, with North Africa and the Middle East continuing to experience frequent large-scale dust intrusions throughout 2025.

These events repeatedly reduced air quality and visibility across the region, affecting agriculture, transportation, and public health.

Also Read: Residents File Lawsuit Against Microsoft’s US AI Data Centre Over Noise Concerns

Growing Need for Better Forecasting

The WMO says artificial intelligence could improve forecasting and early warning systems for sand and dust storms, although additional research is still needed before these technologies can be widely adopted.

Recognizing the growing threat, the United Nations General Assembly has declared 12 July as the International Day of Combating Sand and Dust Storms and designated 2025-2034 as the Decade on Combating Sand and Dust Storms. This year’s theme, “From Source to Impact: Protecting Land and Life from Sand and Dust Storms,” reflects increasing global efforts to strengthen monitoring, early warning systems, and sustainable land management. As climate pressures continue to intensify worldwide, experts say coordinated international action will be essential to reduce the environmental, economic, and public health impacts of future dust storms.

Also Read: First Detection Of Nanoplastics In Antarctic Soils Raises Global Pollution Concerns