TITLE:
Effect of Meteorological Factors on PM10 Concentration in Hanoi, Vietnam
AUTHORS:
Nguyen Anh Dung, Duong Hong Son, Nguyen The Duc Hanh, Doan Quang Tri
KEYWORDS:
Meteorology, Temperature, Humidity, Wind Speed, PM10, Air Quality
JOURNAL NAME:
Journal of Geoscience and Environment Protection,
Vol.7 No.11,
November
26,
2019
ABSTRACT: According to the Ministry of Natural Resources and Environment, Hanoi city is currently facing the increased air pollution, especially particulate matter. This study examines the influence of meteorological factors including temperature, humidity and wind speed on PM10 concentration in Hanoi. The data used in this study include 24-h PM10 concentration data, hourly temperature, humidity and wind speed data in 2018 at three automatic air monitoring stations under Vietnam Environment Administration and Hanoi Natural Resources and Environment Department. The SPSS statistical analysis tools are utilized to analyze the correlation between PM10 concentration and meteorological factors through the Spearman (r) correlation coefficient. Additionally, the Independent-Sample T-Test is also employed to assess the difference in PM10 concentration in the period between dry season (from October to March) and wet season (from May to September). The results show that there is a trend of seasonal variation of PM10 concentration. Specifically, PM10 concentration recorded a higher value in winter and lower in summer. Different correlations between air pollutants and meteorological factors were also observed. PM10 concentration was inversely correlated (r 10 concentration during dry and wetseason. This outcome has confirmed the important role of meteorological factors in the formation of air pollution with large variations in different seasons and geological areas.