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Issue 6, 2007
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Field comparison of passive samplers versus UV-photometric analyser to measure surface ozone in a Mediterranean area

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Abstract

The aim of the present work is to compare the performance of the Radiello passive sampler versus UV-photometric ozone analyser to measure surface ozone in a Mediterranean Spanish coastal area. The comparison presented considers precision, bias, accuracy, selectivity, detection limit, cost and applicability. For assessing precision, co-located samplers were exposed in duplicate in two reference-sampling sites, beside UV-photometric ozone analyser. Bias was calculated comparing results of passive samplers exposed in three reference-sampling sites and two contrast-sampling sites with the measurements given by the reference analysers. Accuracy was calculated following the EN 482:1994 standard. The limit of detection was calculated as 3 times the standard deviation of the blanks in a batch of passive samplers. The compared Radiello passive samplers give a precision of 5.2%, a bias of 13.8%, an accuracy of 20.5% and a limit of detection of 12.6 μg m−3. The selectivity and applicability of this methodology is in both aspects successful. Surface ozone levels measured with passive samplers were comparable with the averaged values measured with the reference analyser both in the reference-sampling sites and in the contrast-sampling sites.

Graphical abstract: Field comparison of passive samplers versus UV-photometric analyser to measure surface ozone in a Mediterranean area

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Publication details

The article was received on 11 Dec 2006, accepted on 02 Apr 2007 and first published on 26 Apr 2007


Article type: Paper
DOI: 10.1039/B618075B
J. Environ. Monit., 2007,9, 610-615

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    Field comparison of passive samplers versus UV-photometric analyser to measure surface ozone in a Mediterranean area

    J. M. Delgado Saborit and V. J. Esteve Cano, J. Environ. Monit., 2007, 9, 610
    DOI: 10.1039/B618075B

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