Comparative Study Between Pre and Post Implementation of Several Policies: Air Quality Index in DKI Jakarta

Abstract

The poor air quality in DKI Jakarta raises concerns among the public and harms health. Therefore, the people of the capital asked the government to act quickly to overcome this problem. The government's response was to provide several policies. Starting from August 11 until the end of August 2023, the government has issue up to 7 policies that are expected to overcome the pollution problem in the capital city. This research wants to see whether there is a difference in air quality in DKI Jakarta before and after the follow-up provided by the government. Daily recorded air quality index data is taken from a database, namely AQAIR. The data obtained was analyzed using the Wilcoxon Signed Ranks Test to see whether there were differences before and after the government issued the policy. After analyzing the data, the results showed that there was not sufficient evidence to state that there were significant differences related to air quality in DKI Jakarta before and after the policies issued by the government. Based on this, it seems that the policies issued by the government to overcome pollution are still not enough or not appropriate. Therefore, other alternative solutions are needed so that air quality problems can be resolved as soon as possible.