. 2021 Apr 17;197:111164. doi: 10.1016/j.envres.2021.111164

Table 2.

T-Test analysis on the Effect of PSBB on Air Quality.

	Central Jakarta	North Jakarta	South Jakarta	East Jakarta	West Jakarta
PM10	0.000^a	0.001^a	0.823	0.019^a	0.081
SO2	0.000^a	0.000^a	0.000^a	0.002^a	0.000^a
CO	0.000^a	0.001^a	0.000^a	0.000^a	0.000^a
O3	0.000^a	0.009^a	0.536	0.000^a	0.457
NO2	0.000^a	0.000^a	0.000^a	0.438	0.005^a

Indicates there is a significant difference in mean concentrations of air pollutants before (1 January – April 9, 2020) and during implementation of PSBB (10 April – June 4, 2020), p ≤ 0.05.