Wednesday, January 06, 2021, 14:38 GMT+7
A screenshot shows the Air Quality Index (AQI) readout of Hanoi reaching a very unhealthy level on January 5, 2021.
The Air Quality Index (AQI) recorded in Hanoi on Tuesday indicated a very high level of pollution, which poses significant threats to the overall health of local residents.
As witnessed at 7:15 am on Tuesday on the air quality tracking app PAM Air, the majority of monitoring stations in Hanoi reported purple and brown signals, which corresponds to “very unhealthy” and “dangerous” warnings on the AQI scale.
In the meantime, many air quality monitoring stations under the system of the Vietnam Environment Administration and the Department of Natural Resources and Environment registered an AQI of as high as 240, which reached the “very unhealthy” alert.