COVID-19 Lockdown Unravels the Complex Interplay between Environmental Conditions and Human Activity

Table 2

Complete results of statistical tests comparing average values of the meteorological variables in different periods.

	Wilcoxon test p values
Variables	Group 1.1–2.1	Group 1.1–1.2	Group 1.1–2.2	Group 1.2–2.1	Group 2.1–2.2	Group 1.2–2.2
Surface pressure	0.022	0.001	0.066	0.478	0.422	0.032
Surface solar rad.	0.061					0.354
Temperature -2m	0.964					0.184
Total precipitation	0.004		0.022	0.030	0.789	0.046
Wind direction	0.659	0.147		0.106		0.015
Wind speed	0.359	0.945	0.720	0.825	0.366	0.252

It is to be noted that during the prelockdown periods (1.1–2.1), only the precipitations were significantly different , while during the lockdown periods (1.2–2.2), all the meteorological conditions were not significantly different.