Air quality in northern Thailand, particularly in Chiang Rai and Chiang Mai, has already become a pressing issue affecting locals and the tourism industry.  The region’s air pollution levels have reached alarming highs, exceeding WHO guidelines and causing health concerns among residents and visitors alike. PM2.5 concentration in Chiang Rai is 15.8 times the WHO annual … Continue reading Air Quality Hits Unhealthy Levels in Northern Thailand