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Simultaneous passive sampling of hydrophilic and hydrophobic emerging organic contaminants in water
Gao, Xiaozhong; Xu, Yiping; Ma, Mei; Rao, Kaifeng; Wang, Zijian
2019-08-30
Source PublicationECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
ISSN0147-6513
Volume178Pages:25-32
AbstractPassive sampling techniques have been considered robust tools for monitoring freely dissolved concentrations of contaminants in aquatic systems. However, few passive samplers are currently available for the simultaneous sampling of both hydrophilic and hydrophobic chemicals. In this study, we developed a novel passive sampler (a hydrophilic-lipophilic balance sorbent-embedded cellulose acetate membrane (HECAM)) for estimating the time -weighted average (TWA) concentrations of both hydrophilic and hydrophobic organic contaminants in water. In our laboratorial controlled dynamic experiments, the accumulation results of thirty-seven target chemicals (including organophosphorus flame retardants, phenols, estrogens, organophosphorus pesticides, and triazine herbicides) with a wide polarity range (1.44 < log K-ow < 9.49) in the HECAM followed first -order kinetics well, and the passive sampling parameters were estimated successfully. The estimated sampling rates for the target chemicals in the HECAM ranged from 0.14 to 6.90 L d(-1) in the laboratory experiment, and the log K-sw (equilibrium partition coefficient between the sampler and water) values ranged from 2.75 to 6.00. The HECAM exhibited high sampling rate for moderately hydrophilic and moderately hydrophobic chemicals. The field validation study in an urban river resulted in the detection of four target chemicals (tris(chloroisopropyl) phosphate, tris(1,3-dichloroisopropyl)phosphate, prometryn, and 4-tert-octylphenol) by the HECAM at estimated TWA concentrations of 10.9-179.5 ng L-1, which were in agreement with the measured levels found in traditional grab samples by solid -phase extraction. In summary, both the laboratory tests and field deployment showed practicable results for the HECAM passive sampling, which suggests that it is an efficient approach for simultaneous monitoring of hydrophilic and hydrophobic organic contaminants in water.
Department中国科学院饮用水科学与技术重点实验室
KeywordPassive sampling Organophosphorus flame retardants Hydrophilic organic contaminants Hydrophobic organic contaminants Time-weighted average concentration Freely dissolved concentration
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/43524
Collection中国科学院饮用水科学与技术重点实验室
Affiliation1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China
Recommended Citation
GB/T 7714
Gao, Xiaozhong,Xu, Yiping,Ma, Mei,et al. Simultaneous passive sampling of hydrophilic and hydrophobic emerging organic contaminants in water[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2019,178:25-32.
APA Gao, Xiaozhong,Xu, Yiping,Ma, Mei,Rao, Kaifeng,&Wang, Zijian.(2019).Simultaneous passive sampling of hydrophilic and hydrophobic emerging organic contaminants in water.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,178,25-32.
MLA Gao, Xiaozhong,et al."Simultaneous passive sampling of hydrophilic and hydrophobic emerging organic contaminants in water".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 178(2019):25-32.
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