| Abstrakt: |
Covid-19 has spread across the world. To overcome this, the Government of Indonesia implemented a Large-Scale Social Restriction (in Indonesia, it is called PSBB) in several areas, including Jakarta. The research aims to analyze the number of transportation modes and industrial closures on air quality (CO, NO2, SO2, O3, and PM10) during PSBB using descriptive-analytic methods. Our research uses secondary data obtained online from Jakarta's Environmental Services, Transportation Services, and Manpower Services. The analysis used in our study is Mann Whitney and Rank Spearman tests. Overall, the number of transportation modes have more impact than industrial closure. PSBB has impact on reducing CO levels 72,4%, NO2 (78%), and SO2 (0,35%). Coefficient correlation number of modes transportation with CO (R = 0,259; p < 0,001), NO2 (R = 0,384; p < 0,0001), SO2 (R = 0,372; p < 0,0001), industrial closure with SO2 (R = -0,364; p < 0,006). Most motorized vehicles Band industries use fossil fuels. Vehicle and industrial restrictions reduce the use of fossil fuels. Emission reduction will affect air quality. Restriction on the number of industries and vehicles at the time the PSBB significantly reduces exhaust emissions. [ABSTRACT FROM AUTHOR] |
