Document Detail


Application of a silicone rubber passive sampling technique for monitoring PAHs and PCBs at three Belgian coastal harbours.
MedLine Citation:
PMID:  23290177     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
A 4-year monitoring was performed to study the freely dissolved water concentrations of PAHs and PCBs in three coastal harbours and at an offshore station in the North Sea. The results are part of a more extensive study to provide information on occurrence, distribution and effects of pollutants in the Belgian coastal zone. Several methods for the estimation of freely dissolved water concentrations are reported in the literature. In the present study silicone rubber passive samplers were used. The non-linear least-square (NLS) method proved to be suitable for estimating sampling rates when using the following performance reference compounds: fluorene-d(10), phenanthrene-d(10), fluoranthene-d(10), benzo(e)pyrene-d(12), coronene-d(12), CB10, CB14, CB50, CB104, CB145 and CB204. The application of two NLS methods for estimating the sampling rate (R(s)) resulted in significant differences for freely dissolved concentrations for individual compounds of up to 30% between the two methods. A model that takes into account the decrease of sampling rate for compounds with higher molecular weight should give a more accurate R(s) and was the preferred estimation method. R(s) varied from 0.9 to 34.8Ld(-1) for the different target compounds, while estimated freely dissolved concentrations for sum 15 PAHs varied between 3.9 and 170ngL(-1) and for sum 14 PCBs between 0.030 and 3.1ngL(-1). The stations located within marinas showed the highest level of contamination, while the offshore station (5 mile from coastline) exhibited the lowest level. The implications of the use of passive samplers for monitoring programs are discussed.
Authors:
Els Monteyne; Patrick Roose; Colin R Janssen
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-3
Journal Detail:
Title:  Chemosphere     Volume:  -     ISSN:  1879-1298     ISO Abbreviation:  Chemosphere     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-7     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0320657     Medline TA:  Chemosphere     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Ltd. All rights reserved.
Affiliation:
Royal Belgian Institute of Natural Sciences, Management Unit of the North Sea Mathematical Models, MARCHEM, 3e & 23e Linieregimentsplein, B-8400 Ostend, Belgium. Electronic address: els.monteyne@mumm.ac.be.
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