한국대기환경학회지 (Journal of Korean Society for Atmospheric Environment)

  • 제34권2호
  • /
  • Pages.244-258
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  • 2018
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  • 1598-7132(pISSN)
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  • 2383-5346(eISSN)
한국대기환경학회 (Korean Society for Atmospheric Environment)
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철강산업도시 포항지역 유해대기오염물질의 오염특성 (II) - 휘발성유기화합물

Characteristics of Hazardous Air Pollutants in the Steel Industrial City, Pohang (II) - Volatile Organic Compounds

  • Kim, Min-ji (Department of Environmental Engineering, Yeungnam University) ;
  • Seo, Young-Kyo (National Institute of Environmental Research) ;
  • Cho, Byoung-Yoon (Daegu City Institute of Public Health and Environment) ;
  • Baek, Sung-Ok (Department of Environmental Engineering, Yeungnam University)
  • 투고 : 2018.01.16
  • 심사 : 2018.03.07
  • 발행 : 2018.04.30
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초록

We performed this study to investigate the spatial, seasonal, and daily variations of the concentrations of volatile organic compounds (VOCs) in Pohang, where large steel industrial complexes are located. Ambient air sampling was undertaken at 4 sites during 4 seasons. Each sample was taken for 4 hours continuously for 8 consecutive days per season at each site. Three sites were located within the Pohang city, but one as a control site in Gyeongju. A total of 72 individual VOCs were determined by thermal desorption coupled with GC/MS, including aliphatics, aromatics, carbonyls and halides. The most abundant VOC was toluene, being followed by ethylbenzene and xylenes. Benzene concentrations(c.a. 0.7 ppb) were found to be much lower than the national ambient standard of 1.5 ppb. Overall, the VOCs levels in Pohang appeared to be lower than other national industrial complexes in Korea such as Shiwha-Banwol, Yeosu-Gwangyang, Gumi, and Ulsan. This implies that steel industry may not give significant impacts on the atmospheric levels of VOCs as much as petrochemical, electronic, and/or textile industries, where large amounts of organic solvents are used.

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