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I have no idea.In hindsight, it should’ve been on the list.
Overall, air quality improved significantly in March and April compared to February, corresponding to reduced levels of economic activity.
In our analysis, we collected data from the World Air Quality Index and Hanoi’s statistics agency to examine the relationship between the average daily concentration of fine particulate matter (PM 2.5) and the intensity of three major contributors to air pollution – agricultural production (emissions from livestock and fertiliser), industrial manufacturing activities and road traffic. Unfortunately, it is bad enough to cause concern.
Air pollution is one of the major environmental concerns in Vietnam. This, however, needs careful planning and coordinated global efforts.
Our results suggest that despite improvements in air quality during the pandemic, air pollution could worsen quickly in the recovery phase, as people have been desperate to travel, and businesses might try to ramp up productivity to make up for revenue losses.
In our analysis, we collected data from the World Air Quality Index and Hanoi’s statistics agency to examine the relationship between the average daily concentration of fine particulate matter (PMThe relationship between economic activities and the PMFigure 1 supports the belief that economic activities have negative impacts on air quality and sheds some light on the effects of different factors.
Sewer systems consist of combined sewers, channeling both rainwater and municipal sewage.
Air quality in Hanoi has worsened over recent days after an improvement thanks to recent good weather.
IQAir AirVisual believes that it is the air quality data provider that has done more than any other to ensure data accuracy and reliability.More details on IQAir AirVisual’s validation and calibration processes are available Find an IQAir dealer to customize your air quality solutions. The last published data goes back to the first quarter of 2018.
Previous reports show that Hanoi often has one or two days with hazardous level quality every year. Continual haze when we arrived to Hanoi in 2012.
Read the air pollution in Hanoi, Vietnam with AirVisual.
Among the various economic activities, agricultural business appears to have a minimal impact on air pollution while industrial manufacturing activities and road traffic seem to contribute greatly to the air pollution issue in Hanoi. The pollution of rivers and lakes in Hanoi is "alarming" according to municipal authorities, as up to 98 per cent of 200 rivers and lakes fail to meet the required water quality.
“The average level of air pollution in Hanoi last year was four times higher than what is deemed cceptable by the World Health Organization’s (WHO) air quality guidelines. This is demonstrated by the dip in the PMDespite the need for more granular data and sophisticated analysis to thoroughly understand and delineate the trade-off between economic activities and air quality, there are still valuable lessons we can learn from this brief analysis.
For each station, it always lists the data source, contributor and location.
The data IQAir AirVisual reports – both from governmental and non-governmental monitors – is constantly monitored by its Artificial Intelligent (AI) system, which flags what it considers inappropriate data.
On average, January 25 is the day with worst air quality.
It is widely thought that an AQI level above 100 can be considered polluted and therefore unhealthy for humans, while children and individuals suffering from respiratory and heart diseases are advised to stay home and avoid outdoor activities when AQI levels reach 150 or above.Hoang Duong Tung, president of the Vietnam Clean Air Partnership, said air quality in Hanoi has begun to worsen since July 27, with the July 28 morning seeing the local air quality become extremely bad between 4 a.m. and 5 a.m. “This is quite rare situation when Hanoi is in the middle of summer”, he stressed, adding that the initial results could be due to changes in weather, particularly in terms of temperature and wind patterns, factors which have caused large amounts of dust to remain.Tung recommended that adults, children, pregnant women, and people suffering from respiratory diseases should wear masks and glasses when going outside.Vietnam is considered the most polluted country in the world, above the likes of Chile, China, and Indonesia.
Prior to joining VinUni, he was a Lecturer at the UNSW Business School.
