Streamlining environmental monitoring networks: Application to nitrogen dioxide in north Italy

Saisana, M; Dubois, G; Chaloulakou, A; Kassomenos, P; Spyrellis, N

dc.contributor.author	Saisana, M	en
dc.contributor.author	Dubois, G	en
dc.contributor.author	Chaloulakou, A	en
dc.contributor.author	Kassomenos, P	en
dc.contributor.author	Spyrellis, N	en
dc.date.accessioned	2014-03-01T01:19:34Z
dc.date.available	2014-03-01T01:19:34Z
dc.date.issued	2003	en
dc.identifier.issn	02329298	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15583
dc.subject	Fractal dimension	en
dc.subject	Indicator semivariogram	en
dc.subject	Network design	en
dc.subject	Risk mapping	en
dc.subject.other	Fractals	en
dc.subject.other	Information analysis	en
dc.subject.other	Monitoring	en
dc.subject.other	Nitrogen compounds	en
dc.subject.other	Risk assessment	en
dc.subject.other	Fractal dimension	en
dc.subject.other	Indicator semivariogram	en
dc.subject.other	Network design	en
dc.subject.other	Risk mapping	en
dc.subject.other	Environmental engineering	en
dc.title	Streamlining environmental monitoring networks: Application to nitrogen dioxide in north Italy	en
heal.type	journalArticle	en
heal.identifier.primary	10.1080/0232929031000136153	en
heal.identifier.secondary	http://dx.doi.org/10.1080/0232929031000136153	en
heal.publicationDate	2003	en
heal.abstract	This article presents a methodology for streamlining a monitoring network. The approach shows that risk maps, which provide decision-makers with the probabilities of a pollutant to be above a regulatory threshold, can also be used to identify monitoring stations that are providing redundant information. The method is applied to an air quality network of 102 stations monitoring nitrogen dioxide (NO2) concentrations in north Italy. The limitations of the network have first been identified in order to specify the annual concentration levels for which reliable risk maps can be designed. This has been achieved by a fractal analysis of the spatial correlation for several NO 2 concentration levels. Two predefined annual thresholds at 40 and 50μg/m3 were used as reference to investigate the possible redundancy of the information provided by the existing network. It was shown that the number of stations could be reduced by almost 20% without losing any information with respect to describing the annual pollution levels.	en
heal.journalName	Systems Analysis Modelling Simulation	en
dc.identifier.doi	10.1080/0232929031000136153	en
dc.identifier.volume	43	en
dc.identifier.issue	2	en
dc.identifier.spage	241	en
dc.identifier.epage	250	en