Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

COVID 19 Related Social Distancing Effects on Carbon Monoxide Levels in a Populated Southeast Asia City

Version 1 : Received: 26 April 2020 / Approved: 28 April 2020 / Online: 28 April 2020 (07:36:53 CEST)

How to cite: Adwibowo, A. COVID 19 Related Social Distancing Effects on Carbon Monoxide Levels in a Populated Southeast Asia City. Preprints 2020, 2020040483 (doi: 10.20944/preprints202004.0483.v1). Adwibowo, A. COVID 19 Related Social Distancing Effects on Carbon Monoxide Levels in a Populated Southeast Asia City. Preprints 2020, 2020040483 (doi: 10.20944/preprints202004.0483.v1).

Abstract

The social distancing as a response to COVID 19 pandemic has led to the exceptional reductions of daily routine people activities and vehicle uses mainly in city. This same situation was also experienced by several busy, large, and populous cities in Southeast Asia (SA) countries. Correspondingly, this study aimed to test the hypothesis that the social distancing implementation period has increased the air quality in the term of carbon monoxide (CO) emission reduction as drawn from Jakarta city as an example of the one of populated cities in SA region. The CO was measured in parts per billions (ppb) and monitored on the daily basis employing remote sensor platform. The monitor periods were started from January, February, March, and April 2020 with 10 measurement days for each month. The social distancing was implemented from mid of March to the recent April. The CO measurement data were statistically tested to justify the significant effects of social distancing on the CO levels. Based on the CO data analysis, the order of CO mean by months is February > January > March > April. The CO levels for January, February, March, and April were 87.46 ppb (95%CI: 83.54-91.37), 88.20 ppb (95%CI: 81.65-94.74), 86.38 (95%CI: 81.06-91.69), and 78.68 (95%CI: 74.03-83.32) respectively. This study also find significant difference (p<0.05) of CO levels especially in April when social distancing has been implemented. Hence, these findings illustrate the potential air pollutant reduction gained from implementing social distancing as can be seen in April.

Subject Areas

city; CO; COVID 19; emission; social distancing

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