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. 2020 May 27;12(6):588. doi: 10.3390/v12060588

Figure 1.

Figure 1

Correlation between SARS-CoV-2 cases in 107 Italian provinces using PM2.5, PM10 and O3. The scatterplots display the values of three atmospheric factors and the number of cases per million in 107 provinces (left panels) and selected provinces with regional capitals (middle panels). (A) PM2.5; (B) PM10; (C) O3. Different colors represent Italian provinces at different latitudes. Red dots: provinces with a latitude higher than 44.84N; black dots: provinces with a latitude comprised between 41.50N and 44.86N; green dots: provinces with a latitude lower than 41.50N. (D–F) The scatterplots display the concentration of PM2.5, PM10, and O3. Red dots represent Italian provinces, blue dots FGS regions.