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Bull Environ Contam Toxicol

Title:		"Comprehensive Study of Organic Micro-pollutants in Flooded Paddy Soils in Central Vietnam: Levels, Pollution Pathways and Sources"
Author(s):		Trinh HT; Duong HT; Strobel BW; Le GT;
Address:		"Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam. trinhthuha80@gmail.com. Institute of Environmental Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam. Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsens vej 40, 1871, Frederiksberg C, Denmark. Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam. gianglt2000@gmail.com"
Journal Title:		Bull Environ Contam Toxicol
Year:		2020
Volume:		20200922
Issue:		4
Page Number:		572 - 581
DOI:		10.1007/s00128-020-02999-3
ISSN/ISBN:		1432-0800 (Electronic) 0007-4861 (Linking)
Abstract:		"In order to assess the environmental impacts caused by flood to the paddy field, 940 semi-volatile organic compounds (SVOCs) were screened in paddy soil samples taken in central Vietnam before and after flooding. The concentration of 166 SVOCs in soil samples ranged from 0.031 to 2241 (mean 89.1) microg kg(-1) dry wt. Chemicals originating from household sources showed the highest level, followed by chemicals originating from agriculture. Since untreated domestic wastewater used for agricultural irrigation, organic micro-pollutants in domestic wastewater is the main source of pollutants in paddy soil. However, contamination levels of pollutants in paddy soil after flooding were lower than those before flooding, possibly due to the removal of pollutants by floodwater. As a result, pollution characteristic of pollutants at sampling locations were different before flooding while they became similar after flooding due to the dispersion and elution of organic pollutants from soil into floodwaters"
Keywords:		"*Environmental Monitoring *Floods Organic Chemicals/*analysis Oryza/growth & development Soil/chemistry Soil Pollutants/*analysis Vietnam Water Pollutants, Chemical/*analysis Aiqs-db Flooded paddy soil Household chemical Pesticide Svoc;"
Notes:		"MedlineTrinh, Ha Thu Duong, Hanh Thi Strobel, Bjarne W Le, Giang Truong eng 104.04-2017.319/Vietnam National Foundation for Science and Technology Development (NAFOSTED)/ 2020/09/23 Bull Environ Contam Toxicol. 2020 Oct; 105(4):572-581. doi: 10.1007/s00128-020-02999-3. Epub 2020 Sep 22"