Unsafe levels of smog in only 8 Thai provinces, mostly in North

According to the Geo-Informatics and Space Technology Development Agency ( Gistda ), eight out of 77 provinces in Thailand were covered in slightly unsafe levels of ultrafine dust pollution on Sunday morning.

All the eight provinces, mostly in the North, were blanketed with orange levels ( starting to affect health ) of particulate matter 2.5 micrometres and less in diameter ( PM2.5 ) ranging from 38.3 to 48.6 microgrammes per cubic metre of air over the past 24 hours, Gistda reported at 7am.

The government-set secure lervel is 37.5µg/m³.

In descending attempt, they were Lamphun, Samut Songkhram, Phrae, Lampang, Chiang Mai, Phayao, Nan and Mae Hong Son. The Central Plain is where Samut Songkhram is located. The North contains the other seven regions.

Twelve regions had really good air quality, represented in blue ranges of PM2.5 ranging from 8.8 to 15µg/m³.

Most of them are in the Northeast and the South, including Bueng Kan, &nbsp, Nakhon Phanom, Phuket, Sa Kaeo, Satun and Ubon Ratchathani. Bueng Kan had the lowest PM2.5 levels at 8.8µg/m³.

Thirty-four state had fine weather value including Chon Buri, Greater Bangkok, Krabi, Loei, Nakhon Pathom, Nakhon Ratchasima and Rayong. Their PM2.5 levels were represented in natural ranging from 15 to 24.8µg/m³.

The Gistda image on Sunday morning shows low and moderate amounts of PM2.5 in blue, green and yellow.