Dr Suraphan Sangsawang, acting director of the Regional Health Promotion Centre 10 Chiang Mai, said reports from 90 hospitals in the area showed that the number of patients with coronary artery and respiratory diseases had increased dramatically as the region’s haze worsened last week.
Suraphan said Chiang Mai had the highest number of patients at 17,359, followed by Chiang Rai at 11,779 and Lampang at 10,228.