The concentration of PM2.5 in Vientiane rose to 71µg per cubic metre (m3) of air on March 25. - VT
VIENTIANE (Vientiane Times/Asia News Network): Many areas of Laos are now covered in thick haze, with PM2.5 levels greatly exceeding safe levels and having the potential to affect people’s health, the Meteorology and Hydrology Department, Ministry of Natural Resources and Environment, has warned.
On Saturday, the concentration of PM2.5 in Vientiane rose to 71µg per cubic metre (m3) of air.
