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. 2021 May 10;14(7):1081–1095. doi: 10.1007/s11869-021-01004-y

Table 1.

Meteorological parameter data, PM_2.5, and BC concentration of before lockdown and during lockdown

Parameters	Before lockdown						During lockdown
	Jan		Feb		Mar		Apr		May		Jun
	Mean	SD	Mean	SD	Mean	SD	Mean	SD	Mean	SD	Mean	SD
Temperature (°C)	19.3	1.93	20.53	2.67	26.38	3.13	31.2	4.1	32	3.96	31.6	3.25
Wind speed (mph)	2.53	0.76	2.71	0.66	2.79	0.91	4.4	0.7	4.8	0.93	4.4	0.98
Humidity (%)	0.61	0.15	0.58	0.08	0.54	0.12	0.62	0.1	0.59	0.11	0.56	0.07
PM_2.5 (μgm⁻³)	162.7	47.4	158	39.3	125.3	28.5	45.8	8.9	50.4	11.9	54.7	13.3
BCA (μgm⁻³)	12.7	3.86	12.65	3.14	10.03	2.28	1.8	0.3	2.26	0.59	3.31	1.02