VIENTIANE: Laos' Ministry of Health is urging citizens to take steps to safeguard their health as air pollution soars to harmful levels across the country.
The concentration of fine dust, known as PM 2.5, which is particulate matter with a diameter of less than 2.5 micrometers, surpasses the safety level, according to a report from the ministry's Center of Information and Education for Health on Tuesday (April 23).
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