Heat inversion worsens air pollution in Hà Nội: report
Many studies in Hà Nội have shown that heat inversion is one of the main causes for recent sharp rises in pollutants, according to the Ministry of Natural Resources and Environment (MoNRE).
In a report released on Wednesday, the MoNRE said that in order to comprehensively assess air quality in a certain area, it is necessary to analyze and evaluate the monitoring data of many parameters continuously on different days throughout the year. The monitoring results showed that the air pollution is mainly dust, especially PM2.5, a single particle that has a diameter of less than 2.5 micrometres.
The MoNRE believes that to improve polluted air in Hà Nội, it’s necessary to limit the number of personal vehicles in the city and encourage environmentally-friendly public transportation.