The levels of hazardous small particles in the air have been rising persistently since early last month.
The levels of hazardous small particles known as PM2.5 in the air at the country’s two largest cities, Hanoi and Ho Chi Minh City, have been rising persistently since early last month, exceeding “Vietnamese standards”, the government said in a statement. Air Visual – an independent online air quality index monitor- says Hanoi’s reading of PM2.5 has exceeded 300 micro grams per cubic metre at times, the worst in the world. On Tuesday, it showed PM2.5 levels at 180 in Hanoi and 86 in Ho Chi Minh.
Such pollution could become a political issue in Vietnam, where protests have been held in the past against the degradation of the environment. Communist-ruled Vietnam tolerates little dissent and protesters and activists are often prevented from gathering or charged with “causing public disorder”.
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