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A Study on the Distributions of VOC Concentrations in Shiwha Area  

Kim Jin-Yong (Deportment of Chemical Engineering, Chungnam Notional University)
Lee Hyo-Song (Deportment of Chemical Engineering, Chungnam Notional University)
Yu Jae-Keun (Deportment of Chemical Engineering, Chungnam Notional University)
Kil In-Sub (Department of Chemical & Biotechnology Engineering Korea Polytechnic University)
Kim Duk-Hyun (Department of Chemical & Biotechnology Engineering Korea Polytechnic University)
Rhee Young-Woo (Deportment of Chemical Engineering, Chungnam Notional University)
Publication Information
Journal of Korean Society for Atmospheric Environment / v.21, no.6, 2005 , pp. 613-624 More about this Journal
Abstract
In this study, we investigated the characteristic of volatile organic compounds (VOCs) concentrations in Shiwha area, which were measured using the Open-path FTIR Gas Analyzer. The passive samplers were set for a certain period of time to obtain the average concentration of toluene, ethylbenzene, o-xylene and styrene. In addition, VOCs concentration contour maps were constructed using the Tecplot program to illustrate the VOCs concentration distribution. The residential area showed higher concentrations than the industrial area. And the summer had higher concentration value than the winter. Also, we confirmed that the VOCs concentrations ranged from 2 to several tens ppb in the vicinity of an industry than diffused VOC concentration, whereas those ranged from 0 to 5 ppb in most other areas. It was conferred that the wind change with seasons significantly affects the distribution of VOCs concentrations such as a northwesterly wind in the winter or a southwestern wind in the summer.
Keywords
VOCs; Open-path FTIR; Passive sampler; Contour map; Shiwha area;
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