TITLE

FTIR Spectra of Organic Functional Group Compositions in PM2.5 Collected at Chiang-Mai City, Thailand during the Haze Episode in March 2012

AUTHOR(S)
Pongpiachan, Siwatt
PUB. DATE
November 2014
SOURCE
Journal of Applied Sciences;2014, Vol. 14 Issue 22, p2967
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Organic functional groups of alcohol, alkane, alkene, alkyl halide, alkyne, amine, aromatic, ether, nitrile and nitro in PM2.5 were qualitatively identified by using FTIR techniques with the assistances of IRAffinity-1 Shimadzu. The PM2.5 were collected at the city center, sub-urban and rural area of Chiang-Mai city, Thailand during the haze episode in March 2012. The measured concentrations of PM2.5 at three air quality observatoiy sites were relatively high in comparison with those of other cities around the world during the agricultural waste-burning period. The predicted probabilistic Incremental Lifetime Cancer Risk (ILCR) of PM2.5 were consistently highest at the city center in both genders with the average values of 418±180 and 228±98 year-1 for PM2.5 accumulated in male and female outdoor workers over exposure duration of 25 years, respectively. This indicates the influences of vehicular exhausts on the enhanced contents of PM2.5irrespective of the "Haze Episode". The results are in good agreement with those obtained from FTIR technique.
ACCESSION #
97880923

 

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