Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 400465
Title Application and evaluation of a new passive sampler for measuring average solute concentrations in a catchment-scale water quality monitoring study
Author(s) Rozemeijer, J.C.; Velde, Y. van der; Jonge, H. de; Geer, F.C. van; Broers, H.P.; Bierkens, M.F.P.
Source Environmental Science and Technology 44 (2010)4. - ISSN 0013-936X - p. 1353 - 1359.
DOI http://dx.doi.org/10.1021/es903068h
Department(s) Soil Physics, Ecohydrology and Groundwater Management
WIMEK
Publication type Refereed Article in a scientific journal
Publication year 2010
Keyword(s) aromatic-hydrocarbons pahs - membrane devices spmds - groundwater - loads - contaminants - pollutants
Abstract We present a field based testing, optimization, and evaluation study of the SorbiCell sampler (SC-sampler); a new passive sampling technique that measures average concentrations over longer periods of time (days to months) for various substances. We tested the SC-sampler within a catchment-scale monitoring study of NO(3) and P concentrations in surface water and tile drain effluent. Based on our field experiences, we optimized the flow velocity control and the sample volume capacity of the SC-samplers. The SC-samplers were capable of reproducing the NO(3) concentration levels and the seasonal patterns that were observed with weekly conventional grab sampling and continuous water quality measurements. Furthermore, we demonstrated that average measurements produce more consistent load estimates than "snapshot" concentrations from grab sampling. Therefore, when the purpose of a monitoring program is to estimate reliable (trends in) average concentrations or loads, the SC-samplers are a cost-effective alternative for grab sampling
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