Research Article
Statistical Tools for Air Pollution Assessment: Multivariate and Spatial Analysis Studies in the Madrid Region
Figure 4
Contour maps of the spatial distribution of (a) NO (µg/m3), (b) NO2 (µg/m3), (c) O3 (µg/m3), and (d) PM10 (µg/m3) in the Community of Madrid in 2017.
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