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Application and Evaluation of a New Passive Sampler for Measuring Average Solute Concentrations in a Catchment Scale Water Quality Monitoring Study
Wageningen Univ, Soil Phys Ecohydrol & Groundwater Management Grp, NL-6700 AA Wageningen, Netherlands.
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2010 (English)In: Environmental Science and Technology, ISSN 0013-936X, E-ISSN 1520-5851, Vol. 44, no 4, 1353-1359 p.Article in journal (Refereed) Published
Abstract [en]

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 the 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.

Place, publisher, year, edition, pages
2010. Vol. 44, no 4, 1353-1359 p.
National Category
Oceanography, Hydrology, Water Resources
URN: urn:nbn:se:su:diva-69031DOI: 10.1021/es903068hOAI: diva2:474858
Available from: 2012-01-10 Created: 2012-01-09 Last updated: 2012-01-11Bibliographically approved

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van der Velde, Ype
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