Thailand's Pollution Control Department is watching smoke drifting from Indonesia and a peat fire in Nakhon Si Thammarat. As of 24 August 2026, Thailand had 4 hotspots against Indonesia's 5,122. Narathiwat, Pattani and Yala are flagged for low ventilation and possible PM2.5 build-up, and rain is forecast for Ranong and Phang Nga on 27-29 August. For southern businesses, especially in the three border provinces, check Air4Thai hourly readings and plan outdoor work and staff health around high-PM days. No change to costs or rules is announced.