title: Aquatic passive sampling of perfluorinated chemicals with polar organic chemical integrative sampler and environmental factors affecting sampling rate.
abstract: A modified polar organic chemical integrative sampler (POCIS) could provide a convenient way of monitoring perfluorinated chemicals (PFCs) in water. In the present study, the modified POCIS was calibrated to monitor PFCs. The effects of water temperature, pH, and dissolved organic matter (DOM) on the sampling rate (R s) of PFCs were evaluated with a static renewal system. During laboratory validation over a 14-day period, the uptake kinetics of PFCs was linear with the POCIS. DOM and water temperature slightly influenced POCIS uptake rates, which is in consistent with the theory for uptake into POCIS. Therefore, within a narrow span of DOM and water temperatures, it was unnecessary to adjust the R s value for POCIS. Laboratory experiments were conducted with water over pH ranges of 3, 7, and 9. The R s values declined significantly with pH increase for PFCs. Although pH affected the uptake of PFCs, the effect was less than twofold. Application of the R s value to analyze PFCs with POCIS deployed in the field provided similar concentrations obtained from grab samples.
authors.affiliation: Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education; College of Environment, HoHai University, NanJing, JiangSu Province, 210098, People's Republic of China. hj6688@hhu.edu.cn.
authors.forename: Ying
authors.initials: Y
authors.lastname: Li
authors.affiliation: Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education; College of Environment, HoHai University, NanJing, JiangSu Province, 210098, People's Republic of China.
authors.forename: Cunman
authors.initials: C
authors.lastname: Yang
authors.affiliation: Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education; College of Environment, HoHai University, NanJing, JiangSu Province, 210098, People's Republic of China.
authors.forename: Yijun
authors.initials: Y
authors.lastname: Bao
authors.affiliation: Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education; College of Environment, HoHai University, NanJing, JiangSu Province, 210098, People's Republic of China.
authors.forename: Xueru
authors.initials: X
authors.lastname: Ma
authors.affiliation: Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education; College of Environment, HoHai University, NanJing, JiangSu Province, 210098, People's Republic of China.
authors.forename: Guanghua
authors.initials: G
authors.lastname: Lu
authors.affiliation: Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education; College of Environment, HoHai University, NanJing, JiangSu Province, 210098, People's Republic of China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Li
mesh_terms: D002138:Calibration; D004784:Environmental Monitoring / Q000295:instrumentation*; D005466:Fluorocarbons / Q000032:analysis*; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D013696:Temperature; D014867:Water / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D005466:Fluorocarbons; D014874:Water Pollutants, Chemical; D014867:Water
keywords: Dissolved organic matter; POCIS; Perfluorinated chemical; Sampling rate