Chiang Mai air world's worst 0 13.03.2023 02:07 BangkokPost.com Chiang Mai had the world's worst air pollution with 180 microgrammes of PM2.5 per cubic metre of air over the 24 hours ending at 4am on Sunday, according to a leading pollution website. Партнёры Smi24.net Все новости за 24 часа Музыкальные новости Агрегатор новостей 24СМИ