Development of polyurethane-based passive samplers for ambient monitoring of urban-use insecticides in water

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Development of polyurethane-based passive samplers for ambient monitoring of urban-use insecticides in water
	Gan, Jay; Liao, Chunyang; Richards, Jaben; Taylor, Allison R.
刊名	ENVIRONMENTAL POLLUTION
	2017-06-15
卷号	231 期号:0 页码:1412-1420
关键词	Passive Sampler Ambient Monitoring Pyrethroids Fipronils Stable Isotope Calibration Performance Reference Compound
英文摘要	Widespread use of insecticides for the control of urban pests such as ants, termites, and spiders has resulted in contamination and toxicity in urban aquatic ecosystems in different regions of the world. Passive samplers are a convenient and integrative tool for in situ monitoring of trace contaminants in surface water. However, the performance of a passive sampler depends closely on its affinity for the target analytes, making passive samplers highly specific to the types of contaminants being monitored. The goal of this study was to develop a passive sampler compatible with a wide range of insecticides, including the strongly hydrophobic pyrethroids and the weakly hydrophobic fipronil and organophos-phates. Of six candidate polymeric thin films, polyurethane film (PU) was identified to be the best at enriching the test compounds. The inclusion of stable isotope labeled analogs as performance reference compounds (PRCs) further allowed the use of PU film for pyrethroids under non-equilibrium conditions. The PU sampler was tested in a large aquarium with circulatory water flow, and also deployed at multiple sites in surface streams in southern California. The concentrations of pesticides derived from the PU sampler ranged from 0.5 to 18.5 ng/L, which were generally lower than the total chemical concentration measured by grab samples, suggesting that suspended particles and dissolved organic matter in water rendered them less available. The influence of suspended particles and dissolved organic matter on bioavailability was more pronounced for pyrethroids than for fipronils. The results show that the developed PU film sampler, when coupled with PRCs, may be used for rapid and sensitive in-situ monitoring of a wide range of insecticides in surface water. (C) 2017 Elsevier Ltd. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/39292]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	Gan, Jay,Liao, Chunyang,Richards, Jaben,et al. Development of polyurethane-based passive samplers for ambient monitoring of urban-use insecticides in water[J]. ENVIRONMENTAL POLLUTION,2017,231(0):1412-1420.
APA	Gan, Jay,Liao, Chunyang,Richards, Jaben,&Taylor, Allison R..(2017).Development of polyurethane-based passive samplers for ambient monitoring of urban-use insecticides in water.ENVIRONMENTAL POLLUTION,231(0),1412-1420.
MLA	Gan, Jay,et al."Development of polyurethane-based passive samplers for ambient monitoring of urban-use insecticides in water".ENVIRONMENTAL POLLUTION 231.0(2017):1412-1420.