Influence of Residential Combustion on Total Gaseous Mercury (TGM) Levels: a Preliminary Study at an Urban Megacity in Vietnam

Các tác giả

  • Ly Sy Phu Nguyen Faculty of Environment, University of Science, Vietnam National University Ho Chi Minh City, Vietnam
  • Thi Dieu Huong Pham Faculty of Environment, University of Science, Vietnam National University Ho Chi Minh City, Vietnam
  • Thi Hien To Faculty of Environment, University of Science, Vietnam National University Ho Chi Minh City, Vietnam
  • Anh Ngan Tran Faculty of Environment, University of Science, Vietnam National University Ho Chi Minh City, Vietnam
  • Vu Kiet Tran Faculty of Environment, University of Science, Vietnam National University Ho Chi Minh City, Vietnam
  • Thao Nguyen Nguyen Faculty of Environment, University of Science, Vietnam National University Ho Chi Minh City, Vietnam

Email tác giả liên hệ:

nlsphu@hcmus.edu.vn

DOI:

https://doi.org/10.54644/jte.77.2023.1378

Từ khóa:

Total gaseous mercury, Southeast Asia, residential combustion, Vietnam, Global pollutant

Tóm tắt

Mercury (Hg) is a global pollutant that has gained monumental attention in recent decades due to its neurotoxicity and great bioaccumulation features. The atmosphere plays a key role in the movement of Hg in the environment, and residential combustion is a significant contributor to atmospheric Hg. However, there is a severe lack of research on the impact of Hg emissions from residential combustion in Southeast Asia (SEA). This study focused to illustrate the contribution of residential combustion on the level of total gaseous mercury (TGM) in a tropical megacity in southern Vietnam by conducting a short field campaign in February 2023. The mean TGM concentration during the study period was 2.27 ± 0.81 ng m-3, in which daytime TGM level (7 am – 7 pm, 2.56 ± 0.80 ng m-3) was significantly higher than at night (7 pm – 7 am, 1.58 ± 0.28 ng m-3), which could be attributed to local burning activities. The TGM concentration was also increased because of the increase in burning activities (i.e. burning joss paper and incense) during the Lantern Festival. Backward trajectory analysis suggested the domination of regional background air mass in the study area, implying that TGM concentration variation is mostly associated with local influences. We estimated that residential combustion caused a rise of around 70% in TGM concentration at the sampling site. Overall, this is the first study to illustrate the importance of Hg emissions from residential combustion in urban SEA region, laying a background for upcoming studies in atmospheric Hg in this region.

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Tiểu sử của Tác giả

Ly Sy Phu Nguyen, Faculty of Environment, University of Science, Vietnam National University Ho Chi Minh City, Vietnam

Nguyen Ly Sy Phu (author) received a B.S. degree in Analytical chemistry from the University of Science, Vietnam National University, Ho Chi Minh City, Vietnam in 2010, an M.S. degree in Environmental science and technology from Ho Chi Minh City University of Technology, Vietnam in 2014 and the Ph.D. degree in Atmospheric Sciences from National Central University, Taiwan in 2020. From 2020 to 2021, he was a Post-doctoral Fellow, at the Department of Atmospheric Sciences, National Central University, Taiwan. His research interests include environmental monitoring (specialized in the atmosphere), the fate and transport of pollutants in the environment, and analytical chemistry. He has been working extensively in the biogeochemical cycling of heavy metals in the atmosphere, particularly in atmospheric mercury (Hg) and its relation to climate change. Dr. Nguyen’s awards and honours include the Outstanding Instructor in science research award (2014), the University of Science – Vietnam National University, Ho Chi Minh City, the Award in Technical Innovation Contest HCMC (2015), the Outstanding Ph.D. student Award (2020), National Central University, Taiwan. Email address: nlsphu@hcmus.edu.vn.

Thi Dieu Huong Pham, Faculty of Environment, University of Science, Vietnam National University Ho Chi Minh City, Vietnam

Ms. Phạm Thị Diệu Huong is a member of the elements and mercury laboratory at Ho Chi Minh City University of Science. Currently, she is studying a master's program in Resources and Environmental management industry at the University of Sciences in Ho Chi Minh City. Email: phamthidieuhuong9a@gmail.com

Thi Hien To, Faculty of Environment, University of Science, Vietnam National University Ho Chi Minh City, Vietnam

Dr. To Thi Hien is currently an Associate Professor and Head of Department of Environmental Engineering, Faculty of Environment, University of Science, Vietnam National University Ho Chi Minh City, where she has working since 1995 after her bachelor and master graduation in the field of Analytical Chemistry. She obtained her PhD on Environmental Chemistry with specialization in Atmospheric Chemistry from Osaka Prefecture University, Japan in 2007. She is a leader of research group on “Air and Water pollution - Public Health - Climate Change”. Her research interests are sources, fate, and behavior of contaminants in atmospheric and water environment, biomarker of pollutants as well as its effects on human health and relationship to climate change of pollutants. Email: tohien@hcmus.edu.vn

Anh Ngan Tran, Faculty of Environment, University of Science, Vietnam National University Ho Chi Minh City, Vietnam

Ms. Tran Anh Ngan is a Ph.D student and a member of research group on “Air and Water pollution - Public Health - Climate Change”. Currently, she also works in the elements and mercury team at Ho Chi Minh City University of Science. Email: tangan@hcmus.edu.vn

Vu Kiet Tran, Faculty of Environment, University of Science, Vietnam National University Ho Chi Minh City, Vietnam

Mr. Tran Vu Kiet is a student of University of Science, VNU-HCM. His major is Air and Solid Waste, and currently he is a laboratory member specializing in atmospheric mercury. Email: vukiet8291@gmail.com

Thao Nguyen Nguyen, Faculty of Environment, University of Science, Vietnam National University Ho Chi Minh City, Vietnam

Ms. Nguyen Thao Nguyen graduated her master’s in environmental science at University of Science Vietnam National University Ho Chi Minh City. Her research focuses on emerging contaminants in atmospheric and water environments. Currently, she is conducting studies on microplastics in her Ph.D thesis. Email: ngtnguyen@hcmus.edu.vn

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Đã Xuất bản

2023-06-28

Cách trích dẫn

[1]
L. S. P. Nguyen, T. D. H. . Pham, T. H. To, A. N. Tran, V. K. . Tran, và T. N. . Nguyen, “Influence of Residential Combustion on Total Gaseous Mercury (TGM) Levels: a Preliminary Study at an Urban Megacity in Vietnam”, JTE, vol 18, số p.h 3, tr 1–9, tháng 6 2023.

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