Photochemical smog introduction and episode selection for the ground-level ozone in Hanoi, Vietnam

Ozone (O3) is a secondary pollutant formed in the atmosphere throughout a complex non-linear chemical reaction involving two classes of precursors: the reactive volatile organic compounds (VOCs) and the oxides of nitrogen (NOx) in the presence of sunlight. The rapid urbanization and industrializatio...

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Main Authors: Đàm, Duy Ân, Hoàng, Xuân Cơ, Nguyễn, Thị Kim Oanh
Format: Article
Language:English
Published: VNU 2014
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Online Access:http://repository.vnu.edu.vn/handle/11126/5022
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Institution: Vietnam National University, Hanoi
Language: English
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spelling oai:112.137.131.14:11126-50222017-08-11T04:55:04Z Photochemical smog introduction and episode selection for the ground-level ozone in Hanoi, Vietnam Đàm, Duy Ân Hoàng, Xuân Cơ Nguyễn, Thị Kim Oanh Ozone Chất gây ô nhiễm Khí quyển Hà Nội Ozone (O3) is a secondary pollutant formed in the atmosphere throughout a complex non-linear chemical reaction involving two classes of precursors: the reactive volatile organic compounds (VOCs) and the oxides of nitrogen (NOx) in the presence of sunlight. The rapid urbanization and industrialization in Vietnam have brought about high air pollutant emissions including the O3 precursors. Ground level O3 may already be high in large cities like Hanoi and Ho Chi Minh City. The O3 episode is very important for scene of view of photochemical smog in Hanoi. Ozone episodes are selected on the days which have a high concentration that lasts for at least two days time. During the episode selection, ozone concentrations larger than 46ppb were observed at two stations (the Lang and Lac Long Quan stations) in March. The maximum value of 74ppb was measured at the Lang station at 14:00 on March 3. This episode was observed in a common meteorological condition for this time of the year. 2014-03-31T03:01:47Z 2015-08-14T08:55:37Z 2014-03-31T03:01:47Z 2015-08-14T08:55:37Z 2008 Article p. 169-175 http://repository.vnu.edu.vn/handle/11126/5022 en application/pdf VNU
institution Vietnam National University, Hanoi
building VNU Library & Information Center
country Vietnam
collection VNU Digital Repository
language English
topic Ozone
Chất gây ô nhiễm
Khí quyển
Hà Nội
spellingShingle Ozone
Chất gây ô nhiễm
Khí quyển
Hà Nội
Đàm, Duy Ân
Hoàng, Xuân Cơ
Nguyễn, Thị Kim Oanh
Photochemical smog introduction and episode selection for the ground-level ozone in Hanoi, Vietnam
description Ozone (O3) is a secondary pollutant formed in the atmosphere throughout a complex non-linear chemical reaction involving two classes of precursors: the reactive volatile organic compounds (VOCs) and the oxides of nitrogen (NOx) in the presence of sunlight. The rapid urbanization and industrialization in Vietnam have brought about high air pollutant emissions including the O3 precursors. Ground level O3 may already be high in large cities like Hanoi and Ho Chi Minh City. The O3 episode is very important for scene of view of photochemical smog in Hanoi. Ozone episodes are selected on the days which have a high concentration that lasts for at least two days time. During the episode selection, ozone concentrations larger than 46ppb were observed at two stations (the Lang and Lac Long Quan stations) in March. The maximum value of 74ppb was measured at the Lang station at 14:00 on March 3. This episode was observed in a common meteorological condition for this time of the year.
format Article
author Đàm, Duy Ân
Hoàng, Xuân Cơ
Nguyễn, Thị Kim Oanh
author_facet Đàm, Duy Ân
Hoàng, Xuân Cơ
Nguyễn, Thị Kim Oanh
author_sort Đàm, Duy Ân
title Photochemical smog introduction and episode selection for the ground-level ozone in Hanoi, Vietnam
title_short Photochemical smog introduction and episode selection for the ground-level ozone in Hanoi, Vietnam
title_full Photochemical smog introduction and episode selection for the ground-level ozone in Hanoi, Vietnam
title_fullStr Photochemical smog introduction and episode selection for the ground-level ozone in Hanoi, Vietnam
title_full_unstemmed Photochemical smog introduction and episode selection for the ground-level ozone in Hanoi, Vietnam
title_sort photochemical smog introduction and episode selection for the ground-level ozone in hanoi, vietnam
publisher VNU
publishDate 2014
url http://repository.vnu.edu.vn/handle/11126/5022
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