HEAVY SMOG is threatening the health of people living in Lampang and Phrae.
Air-quality tests conducted Wednesday showed that the amount of small dust particles in Lampang had soared to 135 micrograms per cubic metre – the highest in the country – while in Phrae it was 127mg.
Safety limits say small dust particles should not go beyond 120mg per cubic metre of air.
“At this level, anybody going outdoors in these provinces are exposed to health risks,” Lampang weather bureau’s chief Tiwa Phanmaisee said Wednesday.
He was speaking after checking real-time results of air-quality tests being conducted by the Pollution Control Department.