Paper Title
Suburban Atmospheric PM2.5 Distribution In Southern Region Of Peninsular Malaysia

Abstract
Air pollution is one of the crucial factors that causes premature death and health problems. Excessive inhalation of fine particulate matter, particularly PM2.5, has high association with adverse health effects due to its capability to penetrate deep into human respiratory system. This paper aims to investigate the analysis and interpretation of monthly and seasonal cycles of 24–h average PM2.5 mass concentrations, recorded in a suburban area in southern region of Peninsular Malaysia. The meteorological variables and PM2.5 data were recorded via Grimm Environmental Dust Monitor continuously from August 2017 to January 2018. This study found that the highest PM2.5 24-h average pollutant in the suburban area is 44.6 μg/m3, with an average value of 21.85 μg/m3 throughout southwest monsoon through northeast monsoon season. Almost half of the total percentage, which is 43.33% of the PM2.5 pollutant exceeded the 24-h World Health Organization Guideline, 8.33% of the PM2.5 distribution concentration exceeded the 24-h Malaysia Ambient Air Quality Standard. The variation of PM10 level is revealed to be constantly 1.09~1.90-fold the level of PM2.5 mass concentration, indicating that PM2.5 mass is consistently 52-92% of PM10 mass concentration. On a seasonal scale, the variations of particulate matter (PM) concentration value is influenced by meteorological factors such as wind speed (WS), rainfall, temperature and relative humidity (RH), as well as primary emissions and local anthropogenic activities. Index Terms - Atmospheric PM2.5, Meteorological Influence, Particulate Matter