Open AccessOn The Fine And Coarse Atmospheric Particle Concentrations In Kuala Lumpur(1988-1990)
Author(s) -
M. Rashid,
A. Rahmalan
Publication year - 1997
Publication title -
jurnal teknologi/jurnal teknologi
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.191
H-Index - 22
eISSN - 2180-3722
pISSN - 0127-9696
DOI - 10.11113/jt.v27.1024
Subject(s) - kuala lumpur , aerodynamic diameter , environmental science , air quality index , particle (ecology) , air pollution , particle number , atmospheric sciences , meteorology , geography , chemistry , aerosol , physics , biology , ecology , plasma , organic chemistry , marketing , quantum mechanics , business
This paper presents some of the important lindings on the atmopsheric fine FP (particle with aerodynamic diameter, da 2.5um) and coarse particles, CP (2.5 um da 10 um) concentrations collected from July 1988 to December 1990 using a dichotomous sampler sited at the Universiti Teknologi Malaysia, Kuala Lumpur. Results showed that the mean FP and CP particle concentration was 35.4 and 14.2 μg/m3, respectively, with 40% of the daily total particle, TP(i.e TP = FP + CP) concentration samples exceeded the 50 μg/m3 annual mean guideline limit. On average, the FP constitutes 71% of the TP concentration measured at the site. Elevated particle concentrations were observed to be consistent with the frequency of calm conditions and wind direction which uggests that both there the important factors influencing the quality of air in the area. Keyword: Air Pollution, particles, aerosols