Assessing pollution characteristics and human health risk of exposure to PM2.5-bound trace metals in a suburban area in Hanoi, Vietnam

被引:13
作者
Thi Phuong Mai Nguyen [1 ,2 ]
Thi Hieu Bui [3 ]
Manh Khai Nguyen [1 ]
Thuy Nguyen Ta [4 ]
Thi Minh Hang Tran [1 ]
Nhu Nguyen, Y. [1 ]
Thi Hue Nguyen [2 ,5 ]
机构
[1] Univ Sci, Vietnam Natl Univ, Fac Environm Sci, Hanoi 334, Vietnam
[2] Vietnam Acad Sci & Technol, Grad Univ Sci & Technol, Hanoi, Vietnam
[3] Natl Univ Civil Engn, Fac Environm Engn, Hanoi, Vietnam
[4] Vietnam Acad Sci & Technol, Inst Chem, Dept Appl Analyt, Hanoi, Vietnam
[5] Vietnam Acad Sci & Technol, Inst Environm Technol, Dept Environm Water Qual Anal, Hanoi, Vietnam
来源
HUMAN AND ECOLOGICAL RISK ASSESSMENT | 2022年 / 28卷 / 3-4期
关键词
PM2; 5; trace elements; risk assessment; principal components analysis; Hanoi; POLYCYCLIC AROMATIC-HYDROCARBONS; ATMOSPHERIC PARTICULATE MATTER; HEAVY-METALS; SOURCE IDENTIFICATION; ELEMENTAL COMPOSITION; SOURCE APPORTIONMENT; AIR-POLLUTION; CHEMICAL-COMPOSITION; URBAN SITE; PM2.5;
D O I
10.1080/10807039.2022.2056872
中图分类号
X176 [生物多样性保护];
学科分类号
090705 ;
摘要
Fine particles (PM2.5) in the atmosphere, especially PM2.5 bounded with trace metals, pose potentially adverse human health risks. This study aimed to characterize the trace elements in PM2.5 in a suburban area of Hanoi from November 2019 to December 2020. The study area represented a mixture of industrial, agricultural, and residential areas. The results revealed that PM2.5 mass was highest in winter due to the stable meteorological conditions, which disfavor the particulate matter dispersion in the atmosphere. Fe, Mg, Zn, K, and Al were the most abundant elements in PM2.5, accounting for 29.6, 19.0, 16.3, 15.8, and 11.3% of the total concentration of metals, respectively. PM2.5-bound trace metals were highest in winter, followed by autumn and spring. Principal component analysis with multiple linear regression (PCA/MLR) illustrated that crustal dust, pesticide, and industrial emissions contributed to 73.6% of the total contribution sources, while vehicle exhaust mixed with coal combustion accounted for 64.1% of the total contribution sources. The health risk assessments suggested that As (HQ = 4.7) and Cd (HQ = 3.1) had non-carcinogenic risks for adults. The cumulative carcinogenic risk of elements was within the acceptable range for both children and adults. Notably, the source of As should be paid attention to as the As high concentration exceeding the safe level for non-carcinogenic risks in the study area.
引用
收藏
页码:433 / 454
页数:22
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