Dry weather worsens air pollution in Hà Nội
Air pollution in Hà Nội increased in the early days of this month, with the air quality index (AQI) soaring at night and in the early morning. Mai Trọng Thái, director of the Hà Nội Sub-department of Environmental Protection, speaks to Hà Nội Mới (New Hà Nội) about the issue.