WEBVTT

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The images you just saw are not West
Lake on a romantic misty morning. 

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But those dense layers of dust are one
of the signs of environmental pollution. 

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and people here are very worried
about this pollution situation. 

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They are concerned about air quality and
the impact on their daily lives. 

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Until now, West Lake has not been as
polluted as it is now. 

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But now it's so polluted, I go there and
I feel like it's so polluted. 

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Outside the lake, the road is covered with dust. 

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He also has to wear a mask outside the lake. 

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Hanoi is regularly on the list of the
most polluted cities in the world. 

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with the air quality index at red
alert level for many days. 

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Experts have an explanation for this situation. 

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You see, the AQI index has many red and
purple days, and what's more dangerous 

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is the trend, pollution is not
decreasing but increasing. 

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So what is the reason? First, we do not
control pollution sources well. 

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From production sources, from
construction, from transportation, to 

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burning slag, burning waste, then
burning garbage, etc., we 

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have not done well. 

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The second thing is that in winter there
are many weather conditions that are not 

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favorable, not convenient for the
work of spreading air. 

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So the exhaust gas released into the
environment always remains in the lower 

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atmosphere and cannot be dispersed. 

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So that's why its concentration is high. 

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In 2024, Hanoi recorded 4 episodes of
heavy air pollution, including 3 

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episodes from January to April and 1
episode in early October. 

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Pollution is concentrated from October
to March of the following year.