Analysis of PCDD/Fs and dioxin-like PCBs in atmospheric deposition samples from the Flemish measurement network: correlation between the CALUX bioassay and GC-HRMS.

Chemosphere
K CroesWilly Baeyens

Abstract

Since the CALUX (Chemically Activated LUciferase gene eXpression) bioassay is a fast, sensitive and inexpensive tool for the analysis of a high number of samples, the use of this technique in routine analysis of atmospheric deposition samples may be a valuable alternative for GC-HRMS. In this study, a validated CALUX method was used for the analysis of PCDD/Fs and dioxin-like PCBs in more than 90 atmospheric deposition samples for different locations in Flanders. The samples were taken in residential and agricultural areas, where a threshold limit of 21pgWHO-TEQm(-2)d(-1) for the sum of PCDD/Fs and dioxin-like PCBs was set, and in industrial zones and natural reserves, where no official threshold limit is available. The results from the Flemish measurement program showed correlation between CALUX and GC-HRMS for all the samples, originating from the different areas (R(2) of 0.81, 0.53 and 0.64 for dl-PCBs, PCDD/Fs and sum of both fractions, respectively). Median CALUX/GC-HRMS ratios of 2.0, 0.9 and 1.3 were reported for the PCDD/Fs, dioxin-like PCBs and the sum of both fractions, respectively. The results show that the CALUX bioassay is a valuable alternative tool for the classic GC-HRMS analysis of atmospheric deposition sampl...Continue Reading

References

Nov 30, 1998·Environmental Health Perspectives·M Van den BergT Zacharewski
Jul 26, 2003·Food Additives and Contaminants·P LaierA M Vinggaard
Jul 5, 2005·Ecotoxicology and Environmental Safety·Luca NizzettoAntonio Di Guardo
Jan 16, 2007·Chemosphere·Jürgen WittsiepeMichael Wilhelm
Mar 31, 2007·Archives of Environmental Contamination and Toxicology·W BaeyensI Windal

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Citations

Dec 26, 2015·Environmental Monitoring and Assessment·Marco SchiavonMarco Ragazzi
Nov 28, 2015·Environmental Science and Pollution Research International·Sidali KhedidjiMarc Elskens

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