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GIS based assessment of the spatial representativeness of air quality
monitoring stations using pollutant emissions data
Authors G. Righini, A. Cappelletti, A. Ciucci, G. Cremona, A. Piersanti, L. Vitali, L. Ciancarella  Year 2014
Pubblication type Paper International Journal with referee
Abstract Spatial representativeness of air quality monitoring stations is a critical parameter when choosing location of sites and assessing effects on population to long term exposure to air pollution. According to literature, the spatial representativeness of a monitoring site is related to the variability of pollutantsconcentrations around the site.
As the spatial distribution of primary pollutants concentration is strongly correlated to the allocation of corresponding emissions, in this work a methodology is presented to preliminarily assess spatial representativeness of a monitoring site by analysing the spatial variation of emissions around it. An analysis of horizontal variability of several pollutants emissions was carried out by means of Geographic Information System using a neighbourhood statistic function; the rationale is that if the variability of emissions around a site is low, the spatial representativeness of this site is high consequently.
The methodology was applied to detect spatial representativeness of selected Italian monitoring stations, located in Northern and Central Italy and classified as urban background or rural background.
Spatialized emission data produced by the national air quality model MINNI, covering entire Italian territory at spatial resolution of 4 X 4 km2, were processed and analysed.
The methodology has shown significant capability for quick detection of areas with highest emission variability. This approach could be useful to plan new monitoring networks and to approximately estimate horizontal spatial representativeness of existing monitoring sites. Major constraints arise from the limited spatial resolution of the analysis, controlled by the resolution of the emission input data, cell size
of 4 X 4 km2, and from the applicability to primary pollutants only.
Reference G. Righini, A. Cappelletti, A. Ciucci, G. Cremona, A. Piersanti, L. Vitali, L. Ciancarella
Atmospheric Environment 97 (2014) 121-129
Research unit MIA
Keywords Air pollution, Emissions, Monitoring networks, Spatial representativeness, GIS
LastUpdate 26/03/2015
Related research topics
Code Topic Description
2.7 Athmosferic pollution

impact factor Falso

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