Bayesian Univariate Space - Time Hierarchical Model for Mapping Pollutant Concentrations in the Municipal Area of Taranto
Abstract
An analysis of air quality data is provided for the municipal area of Taranto (Italy) characterized by high environmental risks as decreed by the Italian government in the 90s. In the context of an agreement between Dipartimento di Scienze Statistiche - Universit`a degli Studi di Bari and the local regional environmental protection agency air quality, data were provided concerning six monitoring stations and covering years from 2005 to 2007. In this paper we analyze the daily concentrations of three pollutants highly relevant in such an industrial area, namely SO2, NO2 and PM10, with the aim of reconstructing daily pollutants concentration surfaces for the town area. Taking into account the large amount of sparse missing data and the non normality affecting pollutants’ concentrations, we propose a full Bayesian separable space-time hierarchical model for each pollutant concentration series. The proposed model allows to embed missing data imputation and prediction of pollutant concentration.We critically discuss the results, highlighting advantages and disadvantages of the proposed methodology.
Anno di pubblicazione
2012
ISSN
1618-2510
ISBN
Non Disponibile
Numero di citazioni Wos
1
Ultimo Aggiornamento Citazioni
Non Disponibile
Numero di citazioni Scopus
1
Ultimo Aggiornamento Citazioni
Non Disponibile
Settori ERC
Non Disponibile
Codici ASJC
Non Disponibile
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