With the terrain of the mountains make it worse air quality and pollution, have been planted and found younger patients in respiratory system diseases increases every year.
The mountainous terrain makes it worse air quality and pollution were quarantined and respiratory disease patients in Thailand is increasing every year.
According to the mountainous landscape makes air quality worse and pollution was trapped and found the sick โรคระบบทางเดินหายใจ in Chiang Mai increases every year.