Sains Malaysiana 49(1)(2020): 201-209

http://dx.doi.org/10.17576/jsm-2020-4901-24

 

Air Pollutant Index Calendar-Based Graphics for Visualizing Trends Profiling and Analysis

(Indeks Pencemaran Udara berdasarkan Kalendar Grafik untuk Pemprofilan Tren Visualisasi dan Analisis)

 

NUR HAIZUM ABD RAHMAN1* & MUHAMMAD HISYAM LEE2

 

1Department of Mathematics, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor Darul Ehsan, Malaysia

 

2Department of Mathematical Sciences, Faculty of Science, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor Darul Takzim,Malaysia

 

Diserahkan: 3 Julai 2019/Diterima: 17 Oktober 2019

 

ABSTRACT

Detection of air quality abnormality is important as an early warning system for air quality control and management. The information can raise citizens’ awareness towards current air quality status. By using time series plot, the data pattern can be identified but not able to exactly determine the abnormality due to overcrowded plot. Therefore, visualization data profiling was presented in this study by using seven years Malaysia daily air pollutant index to improve the detection. Result shown, the developed approach can simply identify the poor air quality across the month and year. Malaysia air quality was good and consistent between November and May. However, upward trend existed between June and October due to the forest fire happened in Sumatra. This visualization approach improved air pollution detection profiling and it is useful for related agencies to guide the control actions to be taken. This approach can be applied to any countries and data set to give more competent information.

 

Keywords: Air pollutant index; calendar; data visualization; profiling

 

ABSTRAK

Pengesanan kelainan kualiti udara adalah penting sebagai sistem amaran awal untuk kawalan dan pengurusan kualiti udara. Maklumat ini dapat meningkatkan kesedaran masyarakat terhadap status kualiti udara semasa. Dengan menggunakan plot siri masa, corak data dapat dikenal pasti tetapi tidak dapat menentukan secara tepat kelainan akibat plot yang sesak. Oleh itu, untuk meningkatkan pengesanan, pemprofilan data visualisasi telah dibincangkan dalam kajian ini dengan menggunakan indeks pencemaran udara harian di Malaysia selama tujuh tahun. Keputusan menunjukkan pendekatan yang digunakan dapat mengenal pasti kualiti udara yang tidak baik sepanjang bulan dan tahun. Kualiti udara di Malaysia adalah baik dan konsisten antara November dan Mei. Bagaimanapun, aliran menaik wujud antara bulan Jun dan Oktober akibat kebakaran hutan di Sumatra. Pendekatan profil visualisasi dapat mengesan pencemaran udara dan berguna kepada agensi berkaitan untuk membimbing tindakan kawalan yang akan diambil. Pendekatan ini boleh digunakan untuk mana-mana negara dan set data untuk memberikan maklumat yang lebih cekap.

 

Kata kunci: Indeks pencemaran udara; kalendar; pemprofilan; visualisasi data

 

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*Pengarang untuk surat-menyurat; email: nurhaizum_ar@upm.edu.my  

 

 

 

 

 
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