Why is Hanoi the most polluted in the world?

Hùng Cường |

Hanoi is regularly on the list of the world's most polluted cities, with air quality indexes at warning levels for many days.

Hùng Cường
TIN LIÊN QUAN

Hanoi is the most polluted in the world, with some spots reaching extreme pollution

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On the morning of January 3, the IQAir application ranked Hanoi as the most polluted city in the world.

The two most polluted times of the day

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During the day, air pollution levels fluctuate, concentrated between 6-8am and 5-7pm.

Hanoi ranked 2nd in the world for pollution, many measuring points at hazardous levels

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Near noon on January 2, Hanoi's sky was still hazy, IQAir ranked Hanoi as the second most polluted city in the world.

Mass shooting in the US, 2 dead

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A mass shooting in indianapolis, USA on July 5 left two people dead and many others injured.

Ukraine declares attack on Russian military airport

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The Ukrainian special forces announced that they had launched a airstrike targeting Borisoglebsk military airport, in thevoronezh region of Russia.

Cars are congested, queuing for kilometers in Mui Ne tourist area

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Lam Dong - During rush hour, the high traffic volume combined with construction works caused the road to Mui Ne tourist area to be constantly congested, cars lined up in long lines.

Tickets to watch the VTV Cup volleyball final are being sold for 5 times more than the original price

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Before the final match of the VTV Cup 2025, tickets are being sold at prices 5 times higher than the original price.

Hanoi is the most polluted in the world, with some spots reaching extreme pollution

Huy Hùng |

On the morning of January 3, the IQAir application ranked Hanoi as the most polluted city in the world.

The two most polluted times of the day

Huy Hùng |

During the day, air pollution levels fluctuate, concentrated between 6-8am and 5-7pm.

Hanoi ranked 2nd in the world for pollution, many measuring points at hazardous levels

Huy Hùng |

Near noon on January 2, Hanoi's sky was still hazy, IQAir ranked Hanoi as the second most polluted city in the world.