Recently, the AQI (Air quality index) of Hanoi has exceeded the standard level regulated by WTO. According to many health experts, the air quality in Hanoi can cause many diseases related to respiratory.

If the AQI is in the range of 100-200, the air quality is considered as poor and harmful to the health of human. And in early days of March 2016, the AQI of Hanoi was around 150. What should be concerned is that this AQI of Hanoi seems to be nearly equal to that of Beijing at some times, a city well-known for the highest level of pollution in the world. Though the AQI of Hanoi is not always high like that, but these recent indexes somewhat indicate that Hanoi air quality is downgraded significantly. If effective measures are not taken seriously, there will be no cure for Hanoi's pollution in the future.

Also, compare to Ho Chi Minh City, another metropolis of Vietnam which has more citizens and vehicles, Hanoi, surprisingly, shows a higher level of pollution. Therefore, according to the report of Health Department of Ministry of Transportation, the number of people hospitalized due to having respiratory problems in Hanoi is twice as much as that in Ho Chi Minh.

Why does air quality of Hanoi fall down? The specialized analyses of experts will reveal the causes and solution. These analyses may be useful to other countries which do not want to be caught in the same situation.

According to the statistic of Ministry of Nature and Environment, Hanoi totally has more than 1000 buildings under construction so more dust and ash in the air is inevitable. Many old industrial manufacturers with traditional methods of producing also emit dust and foul-smelling waste. Besides, many trees were cut down unreasonably, which somewhat reduce the air quality. A famous professor told that only when the innovations are implemented simultaneously in many fields such as transport, construction, industrial production and community activities, can the problem of polluted air be tackled thoroughly.

Source: http://www.tienphong.vn/xa-hoi/o-nhiem-khong-khi-o-ha-noi-len-muc-nguy-hai-976725.tpo

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