Air quality on the morning of July 2: Both Hanoi and Ho Chi Minh City are surprisingly good

With AQI indexes of 28 and 50, the green "Good" Hanoi and Ho Chi Minh City ranked 107th and 55th respectively in the list of 126 polluted cities in the world .

Hanoi's air quality is good. (Photo: Hong Hanh/Vietnam+)

According to the IQAir air monitoring system, at 7:30 a.m. on July 2, 2025, the air in both Hanoi and Ho Chi Minh City was at the "Good" green level.

Specifically, with AQI indexes at 28 and 50, Hanoi and Ho Chi Minh City ranked 107th and 55th respectively in the list of 126 polluted cities in the world.

In Hanoi, the measuring station in Thach That commune recorded the highest AQI index, at 97, yellow "moderate."

This figure will vary by time and time zone, as other cities around the world enter their peak hours and traffic and manufacturing activity peak.

Also at this time, the city with the best air quality among the 126 locations tracked by IQAir was Kiev, Ukraine, which was a green "Good," at 11.

In Vietnam, according to VN Air - an application providing air quality information on smartphones developed by the Ministry of Natural Resources and Environment, the most polluted area in the country as of 7:30 a.m. on July 2 was Dong Hai commune (Vinh Long province) with an AQI index of 84, "medium" yellow.

Also according to VN Air, the best air quality index in the country belongs to Dong Phu commune (Dong Nai province) with a green air quality index, at level 5 - Good.

AQI is an air quality monitoring index ranging from 0-500, the higher the index, the higher the level of pollution and the higher the impact on health.

VN Air is an application researched and developed by the Northern Environmental Monitoring Center under the Department of Environment - Ministry of Agriculture and Environment.

VN Air uses data sources exploited from monitoring results of automatic continuous air environment monitoring stations managed by the Department of Environment and environmental monitoring stations managed by local Departments of Agriculture and Environment.

Regularly updating the air quality index will help people respond promptly when air quality declines, such as minimizing outdoor activities, limiting opening doors, using masks that can limit the effects of pollutants in the air, using air purifiers, etc.

The Department of Environment recommends that people regularly monitor air quality to proactively limit the impact caused by air pollution.

The Department of Health Environment Management (Ministry of Health) recommends that when the air quality index is at a very poor level (201-300), normal people should avoid outdoor activities for long periods of time or participate in strenuous physical activities; encourage indoor activities; and avoid activities in areas with high risk of air pollution.

If you have to work in areas with a high risk of pollution, you should use masks that can prevent fine dust; if you have to participate in traffic, you should increase the use of public transport and limit the use of motorbikes and bicycles to reduce exposure to polluted air.

At the same time, limit opening windows and doors during times of heavy air pollution; clean your nose and gargle with saline morning and night, especially after going out; wash your eyes with saline in the evening before going to bed.

For sensitive people, it is necessary to avoid all outdoor activities, switch to indoor activities or change to another day when the air quality index is better; limit opening windows and doors during times of heavy air pollution./.

Source: https://baolangson.vn/tinh-hinh-khong-khi-sang-2-7-ca-ha-noi-va-tp-ho-chi-minh-bat-ngo-o-muc-tot-5051945.html