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Statistical Tools for Air Pollution Assessment: Multivariate and Spatial Analysis Studies in the Madrid Region

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Núñez Alonso, David and Pérez Arribas, Luis Vicente and Manzoor, Sadia and Cáceres, Jorge O. (2019) Statistical Tools for Air Pollution Assessment: Multivariate and Spatial Analysis Studies in the Madrid Region. Journal of Analytical Methods in Chemistry, 2019 (975392). pp. 1-9. ISSN 2090-8873

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Official URL: https://www.hindawi.com/journals/jamc/2019/9753927/



Abstract

The present work reports the distribution of pollutants in the Madrid city and province from 22 monitoring stations during 2010 to 2017. Statistical tools were used to interpret and model air pollution data. The data include the annual average concentrations of nitrogen oxides, ozone, and particulate matter (PM10), collected in Madrid and its suburbs, which is one of the largest metropolitan places in Europe, and its air quality has not been studied sufficiently. A mapping of the distribution of these pollutants was done, in order to reveal the relationship between them and also with the demography of the region. The multivariate analysis employing correlation analysis, principal component analysis (PCA), and cluster analysis (CA) resulted in establishing a correlation between different pollutants. The results obtained allowed classification of different monitoring stations on the basis of each of the four pollutants, revealing information about their sources and mechanisms, visualizing their spatial distribution, and monitoring their levels according to the average annual limits established in the legislation. The elaboration of contour maps by the geostatistical method, ordinary kriging, also supported the interpretation derived from the multivariate analysis demonstrating the levels of NO2 exceeding the annual limit in the centre, south, and east of the Madrid province.


Item Type:Article
Uncontrolled Keywords:Air Pollution | Particulate Matter | regression LUR
Subjects:Sciences > Chemistry > Environmental conditions
Sciences > Chemistry > Analytic chemistry
ID Code:54850
Deposited On:06 May 2019 11:51
Last Modified:06 May 2019 11:51

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