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On the Optimum Sampling Time for the Measurement of Pollutants in Ambient Air
Joint Authors
Hood, Daniel
Brown, Richard J. C.
Brown, Andrew S.
Source
Journal of Analytical Methods in Chemistry
Issue
Vol. 2008, Issue 2008 (31 Dec. 2008), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2008-01-03
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
No measurement result of any kind is complete without an associated statement of uncertainty.
In general, the aim is to minimise this measurement uncertainty to the extent that the measurement made is fit for purpose, or the uncertainty meets an acceptable level such as a ‘‘data quality objective’’.
This paper demonstrates how the sampling time used to measure a pollutant in ambient air over a given time period, particularly with automatic instruments, can affect the uncertainty of the measurement result.
It is shown that the uncertainty of the overall result depends critically on how the precision characteristics of the measuring instrumentation vary with analyte abundance.
An example of the determination of these characteristics for mercury vapour measurement and the conclusions that may be drawn about optimum sampling times to minimise uncertainty are presented.
For situations where uncertainty is minimised by the use of long sampling periods, the implications of this strategy on the ‘‘information richness’’ of the data and on the detection of short-term episodes, as well as peak concentrations, are discussed.
American Psychological Association (APA)
Brown, Richard J. C.& Hood, Daniel& Brown, Andrew S.. 2008. On the Optimum Sampling Time for the Measurement of Pollutants in Ambient Air. Journal of Analytical Methods in Chemistry،Vol. 2008, no. 2008, pp.1-6.
https://search.emarefa.net/detail/BIM-987970
Modern Language Association (MLA)
Brown, Richard J. C.…[et al.]. On the Optimum Sampling Time for the Measurement of Pollutants in Ambient Air. Journal of Analytical Methods in Chemistry No. 2008 (2008), pp.1-6.
https://search.emarefa.net/detail/BIM-987970
American Medical Association (AMA)
Brown, Richard J. C.& Hood, Daniel& Brown, Andrew S.. On the Optimum Sampling Time for the Measurement of Pollutants in Ambient Air. Journal of Analytical Methods in Chemistry. 2008. Vol. 2008, no. 2008, pp.1-6.
https://search.emarefa.net/detail/BIM-987970
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-987970