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.

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Record number 508188
Title Application of field blanks in odour emission research
Author(s) Ogink, Nico W.M.; Klarenbeek, Johannes V.
Source Chemical Engineering Transactions 54 (2016). - ISSN 1974-9791 - p. 25 - 30.
DOI http://dx.doi.org/10.3303/CET1654005
Department(s) LR - Veehouderij en omgeving
WIAS
Publication type Refereed Article in a scientific journal
Publication year 2016
Abstract

In the Netherlands field blanks are mandatory when sampling odour emission. Field blanks are matrices that have negligible or unmeasurable amounts of the substance of interest. They are used to document possible contamination during sampling, transport and storage of samples. Although field blanks are well established in odour emission research, interpreting the results needs further attention. This can be attributed to the fact that published information on the topic is rare if not absent. In the present study, general statistical measures of field blanks used in odour measurement research, are reported. The objective of the study was to provide insight in the distribution of field blank values. During 2013 and 2014, field blanks were analysed as part of regular investigations into odour emissions. Point sources were most frequently observed (87%), as well as the use of diluting stack samplers (72%). It was found that average odour concentration and standard deviation of the dataset were 1.39 and 0.379 log(ouE/m3) respectively, both expressed on a logarithmic scale (base 10). Median values of odour concentration of field blanks taken with stack sampler methods, differed significantly from lung sample methods, being a factor two higher. Since the implementation of stack sampler methods requires more processing aids than the lung method, the chances are that that traces of odour are carried over from one sampling sessions to another. This stresses the need for effective cleaning of sampling equipment between sampling sessions.

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