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heat inversion
Update news heat inversion
Why is air quality in Vietnam's big cities getting worse?
The air quality in large urban areas, especially Hanoi, has been rated poor or even dangerous recently.
Heat inversion worsens air pollution in Hanoi: report
Many studies in Hanoi 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).
