Open AccessThe development of Air Quality Indices using AOD-Retrieved Images during haze events in Peninsular Malaysia
Author(s) -
Khaled Ali Ahmed Ben Youssef,
Ahmad Makmom Abdullah,
Helmi Zulhaidi Mohd Shafri,
Zulfa Hanan Ash’aari
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/373/1/012027
Subject(s) - haze , environmental science , particulates , moderate resolution imaging spectroradiometer , satellite , air quality index , aerosol , remote sensing , spectroradiometer , meteorology , correlation coefficient , geography , reflectivity , ecology , physics , optics , aerospace engineering , engineering , biology , statistics , mathematics
Advances in satellite sensors provide new datasets to assist in the observation of air quality at urban and local scales. Quantitative Aerosol Optical Depth (AOD) and qualitative true colour image data from the Moderate Resolution Imaging Spectroradiometer (MODIS) sensor on the Terra satellite have been widely used to assess air quality. In this study, both 3 km and 10 km MODIS aerosol products were used to provide an overview of the state of fine particulate matter (PM 2.5 ) and coarse particulate matter (PM 10 ) during haze episodes over Peninsular Malaysia covering the period 21 to 26 June 2013. The result showed a high concentration of PM during the haze period based on ground-level data, with an average level of PM 2.5 (mean ± standard deviation) of 99.86 ± 23.99, 190.37 ± 105.59, and 205.191 ± 165.76 (µg/m 3 ) in Tanah Merah station, Cheras station, and Putrajaya station, respectively. Meanwhile, the PM 10 in the Tanah Merah, Charas, and Putrajaya stations was 100.56 ± 28.17, 181.31 ± 83.70, and 197.99 ± 74.67, respectively. Overall, the results showed a correlation between monitoring station measurements and satellite data. Satellite remote sensing analysis of atmospheric aerosols remain a great method for estimating haze distribution and can be further used to monitor the atmospheric environment in Malaysia.