PUBLISHED: 5 Feb 2025 at 14: 51
Bangkok residents suffered on Wednesday, with smog levels at red hazardous-to-health levels, and unsafe levels of ultrafine dust recorded in 15 of the 76 provinces, according to the Geo-Informatics and Space Technology Development Agency ( Gistda ).
At 1pm, Gistda’s report on the levels of particulate matter 2.5 micrometers and less in diameter ( PM2.5 ) revealed red levels of the ultrafine dust at 75.3 % per cubic meter of air over the past 24 hours. The government-set healthy level is 37.5µg/m³.
Fifteen provinces outside Bangkok faced orange levels ( starting to affect health ) of PM2.5 ranging from 37.7 to 64.4µg/m³.
In descending attempt, the counties were Nonthaburi, Samut Prakan, Samut Sakhon, Pathum Thani, Samut Songkhram, Nakhon Pathom, Ratchaburi, Phetchaburi, Suphan Buri, Rayong, Prachuap Khiri Khan, Chon Buri, Phrae, Kanchanaburi and Ang Thong.
Forty-eight regions in the North, the Central Plain and the Northeast had mild air quality represented by bright ranges of PM2.5 ranging from 25.3 to 37.3µg/m³. They included Chiang Mai, Chiang Rai, Khon Kaen, Mae Hong Son and Nong Khai.
Thirteen regions in the South had fine weather quality with natural PM2.5 amounts ranging from 16.5 to 24.3µg/m³.
In descending attempt they were Satun, Yala, Pattani, Trang, Songkhla, Phatthalung, Krabi, Chumphon, Ranong, Nakhon Si Thammarat, Surat Thani, Phangnga and Phuket.