Vietnam’s air quality improves but has not met WHO standard
Air quality in Vietnam improved in 2021 but still failed to meet the World Health Organization’s annual average PM2.5 concentration guidelines.
The decline in the annual average PM2.5 concentration continued in 2021, falling to 24.7 μg/m3 after peaking in 2019 at 34.1, the World Air Quality Report by Swiss technology and monitoring company IQAir said.
IQAir said Vietnam’s usage of fossil fuels for power generation is a primary cause of air pollution, along with exhaust from cars and motorbikes and factory emissions. At a regional level, the report said rapid population growth and the accompanying economic development have been significant factors in increasing air pollution.