While researching drones and windspeed happened across a link to Air Quality revealing worst spots here on a global listing


A tad behind Delhi number one and Fresno at 160 we have in world rankings

256 C Rai no doubt related to annual burning

273 Ayutthaya

277 Thailand Saraburi

313 Thailand Phrae

356 Thailand Lampang

371 Thailand Nakhon Ratchasima

378 Thailand Phayao

456 Thailand Pathum Thani

458 Thailand Lamphun

493 Thailand Samut Sakhon

505 Thailand Nan

529 Thailand Chiang Mai

532 Thailand Samut Prakan

For comparison lower than Annnemasse Brno or San Bernadino

Krung Thep at
590 Thailand Bangkok

these were 2012 and perhaps taken in a redbillshot can noowhere near KlongToey?