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The Recent State of Ambient Air Quality in Jakarta

Category: Urban Air Quality

Accepted Manuscripts
DOI: 10.4209/aaqr.2017.10.0391
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Sheila Dewi Ayu Kusumaningtyas 1, Edvin Aldrian2, Trinah Wati1, Dwi Atmoko1, Sunaryo Sunaryo1

  • 1 Indonesia Agency for Meteorology Climatology and Geophysics (BMKG), Kemayoran, Jakarta 10720, Indonesia
  • 2 Agency for Assessment and Implementation of Technology (BPPT), Kawasan PUSPIPTEK Serpong, Tangerang Selatan 15314, Indonesia

Highlights

Rainfall amount and policy intervention affect the decreasing trends of ions and PM.
Decreasing of PM2.5 due to much reduction of the inner-city traffic during Ied Al Fitr.
Local ambient air quality in Jakarta was improved.


Abstract

Air pollution becomes a growing concern especially in urban cities along with the rapid economy of the cities, increasing number of vehicles and infrastructure, and declining of greenery space. Fossil fuel and transportation are the main source for the releasing of particles (i.e., sulfur oxide and nitrous oxide) into the atmosphere. Once release to the atmosphere, those particles could create a health problem, degrade air quality, and acid rain. Seasonal investigations on rainwater chemistry and particulate matter pollution (SPM, PM10, and PM2.5) have been done to understand the recent state of ambient air quality in Jakarta, Indonesia. Further, investigation on PM2.5 characteristic has been done during a special event of Ied Al Fitr in 2016 and 2017. During the period of our study (2000–2016) and based on the observation data, the ambient air quality of Jakarta air was improved. Chemical constituents, i.e. anion and cation concentration, in precipitation show decreasing trends starting from 2006 onward. Moreover, the trend of PM10 and SPM concentration was also decreased slightly. The causes of these favorable trends are a climatic condition, which is an increasing trend of rainfall and the policy intervention. In addition, an assessment during feast event of Ied Al Fitr in 2016 and 2017 showed a further reduction of PM2.5 due to much reduction of the inner-city traffic. The case of Ied Al Fitr day exhibits an extreme reduction or extreme low case for PM2.5 concentration in Jakarta city.

Keywords

Jakarta Air pollution Rainfall chemistry Particulate matter


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