Performance of the Chemcatcher ® passive sampler when used to monitor 10 polar and semi-polar pesticides in 16 Central European streams, and comparison with two other sampling methods

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We investigated the performance of the Chemcatcher ®, an aquatic passive sampling device consisting of a sampler body and an Empore ® disk as receiving phase, when used to monitor acetochlor, alachlor, carbofuran, chlorfenvinphos, α-endosulfan, fenpropidin, linuron, oxadiazon, pirimicarb and tebuconazole in 16 Central European streams. The Chemcatcher ®, equipped with an SDB-XC Empore ® disk, detected seven of the aforementioned pesticides with a total of 54 detections. The time-weighted average (TWA) concentrations reached up to 1 μg/L for acetochlor and alachlor. Toxic units derived from these concentrations explained reasonably well the observed ecological effects of pesticide stress, measured with the SPEAR index. In a follow-up analysis, we compared the Chemcatcher ® performance with those of two other sampling systems. The results obtained with the Chemcatcher ® closely matched those of the event-driven water sampler. By contrast, the TWA concentrations were not significantly correlated with concentrations on suspended particles. We conclude that the Chemcatcher ® is suitable for the monitoring of polar organic toxicants and presents an alternative to conventional spot sampling in the monitoring of episodically occurring pollutants.

Original languageEnglish
JournalWater Research
Issue number10-11
Pages (from-to)2707-2717
Number of pages11
Publication statusPublished - 01.05.2008

    Research areas

  • Chemistry
  • Chemcatcher, Monitoring, Passive sampling, Pesticides, Pollution