Concentrations, fluxes and field calibration of passive water samplers for pesticides and hazard-based risk assessment

The Science of the Total Environment
Lutz AhrensJenny Kreuger

Abstract

Three passive sampler types including Chemcatcher® C18, polar organic chemical integrative sampler-hydrophilic-lipophilic balance (POCIS-HLB) and silicone rubber (SR) based on polydimethylsiloxane (PDMS) were evaluated for 124 legacy and current used pesticides at two sampling locations in southern Sweden over a period of 6 weeks and compared to time-proportional composite active sampling. In addition, an in situ calibration was performed resulting in median in situ sampling rates (RS, L day-1) of 0.01 for Chemcatcher® C18, 0.03 for POCIS-HLB, and 0.18 for SR, and median in situ passive sampler-water partition coefficients (log KPW, L kg-1) of 2.76 for Chemcatcher® C18, 3.87 for POCIS-HLB, and 2.64 for SR. Deisopropylatrazine D5 showed to be suitable as a performance reference compound (PRC) for SR. There was a good agreement between the pesticide concentrations using passive and active sampling. However, the three passive samplers detected 38 pesticides (including 9 priority substances from the EU Water Framework Directive (WFD) and 2 pyrethriods) which were not detected by the active sampler. The most frequently detected pesticides with a detection frequency of >90% for both sites were atrazine, 2,6-dichlorobenzamide, bentazo...Continue Reading

Citations

Dec 2, 2019·Annals of Work Exposures and Health·Edward J KasnerMichael G Yost
Jun 18, 2019·Critical Reviews in Analytical Chemistry·Klaudia GodlewskaMonika Paszkiewicz
Oct 11, 2019·Critical Reviews in Analytical Chemistry·Adam C TaylorGraham A Mills
Jul 6, 2020·Environmental Science and Pollution Research International·Feng ZhaoLihong Qiu

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