Major Dust Storm from China to Significantly Impact Taiwan's Air Quality This Week

Authorities advise precautions as PM2.5 levels are projected to surge across the island.

A significant dust storm originating from Inner Mongolia, China, is poised to negatively affect air quality in Taiwan starting Tuesday. The Ministry of Environment (MOENV) issued a statement on Monday advising the public to limit outdoor activities and consider wearing masks to mitigate exposure.

Current data from the MOENV indicates that particulate matter (PM10) concentrations in Inner Mongolia have reached alarming levels, ranging from 500 to 800 micrograms per cubic meter. Concurrently, fine particulate matter (PM2.5) levels in the Shandong-Shanghai region are reported to be between 50 and 100 micrograms per cubic meter.

These airborne pollutants, transported by prevailing monsoon winds, are anticipated to cause a substantial increase in PM2.5 readings across Taiwan. Northern Taiwan is expected to experience PM2.5 levels between 30 to 50 micrograms per cubic meter on Tuesday morning, with a projected rise to 100 to 150 micrograms per cubic meter by the afternoon, according to the MOENV.

The impact is expected to extend to southern and central Taiwan from Tuesday afternoon through the evening.

The ministry forecasts a gradual improvement in air quality, with levels expected to return to "good" or "moderate" by Saturday.