Open AccessAir Pollution Assessment Using RS and Gis in Ho Chi Minh City, Viet Nam: A Case Study of Period 2015-2019 for SO2 and NO2
Author(s) -
Đinh Thị Kim Phượng,
Mai Cong Nhut,
Nguyen Duc Tri
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/652/1/012004
Subject(s) - air pollution , pollution , ho chi minh , environmental science , pollutant , dry season , meteorology , geography , environmental protection , cartography , chemistry , organic chemistry , scale (ratio) , biology , ecology
Large urban areas are currently facing the problem of increasingly serious air pollution, which greatly affects human health and economic development. The sources of air pollution are mainly from industrial activities, transportation and human activities. Air pollutants data can be monitored and extracted from remote sensing images. This research aims to assess the level of NO 2 and SO 2 pollution in the air from data collected by OMI (Ozone Monitoring Instrument) on AURA satellite of A-Train group. Pollution levels of NO 2 and SO 2 will be calculated, assessed. Then, a map illustrating the trend of NO 2 and SO 2 in Ho Chi Minh City during the period of 2015-2019 will be made. The results of the study showed that NO 2 concentration varies significantly with the seasons, relatively high in the dry season reaching 70 (μg/m 3 ) and decreasing in the rainy season. The concentration of SO 2 varies relatively evenly in the area and increases in industrial areas with concentrations ranging from 0.1 to 1.37 mg/m 3 . Therefore, it is necessary to speed up the rapid monitoring of air pollution in urban areas and large cities in order to get accurate, fast and timely air pollution information to have more appropriate and effective mitigation and prevention measures.