|Author:||Gao, Yuan Belinda|
|Title:||Determination of biogenic volatile organic compounds (BVOCs) from cleaning products and air fresheners in HK via solid phase microextraction-gas chromatography/mass spectrometry detector (SPME-GC/MSD)|
|Subject:||Hong Kong Polytechnic University -- Dissertations|
Cleaning compounds -- Environmental aspects
Volatile organic compounds
Indoor air quality
|Department:||Department of Civil and Structural Engineering|
|Pages:||ix, 77 leaves : ill. ; 31 cm.|
|Abstract:||The indoor use of cleaning products and air fresheners can yield high levels of biogenic volatile organic compounds (BVOCs), which are very reactive and can contribute the formation of secondary pollutants via indoor chemistry. This project aims to characterize and quantify biogenic volatile organic compounds (BVOCs) in different categories of cleaning products and air fresheners in Hong Kong via SPME-GC/MSD method. A solid phase microextraction (SPME) coupled with gas chromatography/mass spectrometry (SPME-GC/MSD) was developed for the determination of BVOCs released from cleaning products (Floor cleaners, kitchen cleaners and detergent) and air fresheners. The SPME-GC/MSD analysis results suggested that the chemical composition and concentrations of individual BVOCs varied broadly with household products due to their different functions and scents. The composition of total BVOCs for sample FC-1 was the highest up to 6257.6μg/g, followed by FC-4 of 270.7μg/g, FC-2 of 268μg/g and FC-3 of 111.9μg/g. The d-limonene was the most abundant detected BVOCs in kitchen cleaner samples with the chemical composition varying from 36.8 to 2077 μg/g. For detergents, d-limonene was the main BVOC detected and quantified. Sample DT-4 had the highest d-limonene composition of 395μg/g among the four studied products in this category. However, the BVOCs compositions of air freshener samples are much more complicated the emission concentration is highest, which up to 80% of total emission concentration. Besides that, there are two main dominant BVOCs contained in those cleaning products with higher composition, which are d-limonene and linalool. The composition in cleaning products is covered 41% and 30%, respectively. Air fresheners contain the highest concentration of the BVOCs and detergent contains the lowest composition of BVOCs. People will suffer more from the air fresheners using, because the emission concentration of air fresheners will be up to 80% of total emission. As indicated by the emission concentration comparison between US and HK, HK will have higher emission from those cleaning products, since two different cleaning habits between two places.|
|Rights:||All rights reserved|
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