« Previous Abstract"Identification and field evaluation of sex pheromone components of the pear barkminer moth, Spulerina astaurota"    Next AbstractHazardous organic compounds in groundwater near Tehran automobile industry »

Chemosphere

Title:		"Comprehensive study of insecticides in atmospheric particulate matter in Hanoi, Vietnam: Occurrences and human risk assessment"
Author(s):		Doan NH; Duong HT; Trinh HT; Tanaka Y; Kadokami K;
Address:		"Graduate School of Global Environmental Studies, Sophia University, Kioicho 7-1, Chiyoda-ku, Tokyo, 102-8554, Japan. Institute of Environmental Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi, Viet Nam. Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi, Viet Nam. Institute of Environmental Science and Technology, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu, Fukuoka, 808-0135, Japan. Electronic address: kadokami@kitakyu-u.ac.jp"
Journal Title:		Chemosphere
Year:		2021
Volume:		20200819
Issue:
Page Number:		128028 -
DOI:		10.1016/j.chemosphere.2020.128028
ISSN/ISBN:		1879-1298 (Electronic) 0045-6535 (Linking)
Abstract:		"Air pollution is the most serious environmental issue in Vietnam, particularly in big cities. Air pollutants that are set as environmental standards are regularly monitored by the public institutions. Whereas, environmental data on organic micro-pollutants in atmospheric particulate matters (APMs) is limited, including PAHs and POPs. Although massive pesticides are used in big cities, their data in APMs in Vietnam is very scarce. In order to elucidate their occurrence in the ambient air in Hanoi and their health effects, we surveyed 107 insecticides in APMs by a novel target screening method using LC-QTOF-MS-SWATH. A total of 19 insecticides were detected in the dry and the rainy seasons. Among them, 16 substances are, to our knowledge, reported for the first time in the literature. Their total concentrations varied from 0.47 to 27.0 ng m(-3) (median, 3.6 ng m(-3)), detection frequencies of 12 compounds are higher than 42%, and the number of insecticides detected per each sample ranging from 5 to 13 (median, 9). Total concentrations in the dry season were generally higher than in the rainy season, and concentrations at night were higher than daytime in both seasons. The level of insecticides depends not only on the season, but also on its physicochemical properties, its application conditions, and the meteorological conditions. Their emission sources could be related to agricultural usage, floricultural activities, and pest control in houses. The total maximum daily intake (DI(air)) through inhalation for adults and children were 2.39E-05 mg kg(-1) d(-1) and 2.98E-05 mg kg(-1) d(-1), respectively. The highest Hazard Quotients (HQs) were 1.34E-03 and 3.37E-03, and the highest Hazard Indices (HIs) were 2.71E-03 and 6.33E-03 for adults and children, respectively. All values of HQs, and HIs of insecticides were less than 1, indicating that health risk would be negligible"
Keywords:		Adult Air Pollutants/*analysis Child Cities Environmental Monitoring/*methods Humans Insecticides/*analysis Particulate Matter/*analysis Polycyclic Aromatic Hydrocarbons/*analysis Rain/chemistry Risk Assessment Seasons Vietnam Air particle Insecticide Lc-;
Notes:		"MedlineDoan, Nguyen Hai Duong, Hanh Thi Trinh, Ha Thu Tanaka, Yoshinari Kadokami, Kiwao eng England 2020/11/14 Chemosphere. 2021 Jan; 262:128028. doi: 10.1016/j.chemosphere.2020.128028. Epub 2020 Aug 19"