Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Antimony Content of Natural Mineral Water in Korean Market and Migration into Water from Bottle Material

국내유통 먹는샘물 중의 안티몬 함량 및 용기 이행 특성

  • Huh, Yujeong (Environmental Infrastructure Research Department, National Institute of Environmental Research) ;
  • Yang, Mihee (Environmental Infrastructure Research Department, National Institute of Environmental Research) ;
  • Cho, Yangseok (Environmental Infrastructure Research Department, National Institute of Environmental Research) ;
  • Ahn, Kyunghee (Environmental Infrastructure Research Department, National Institute of Environmental Research) ;
  • Lee, Younhee (Environmental Infrastructure Research Department, National Institute of Environmental Research) ;
  • Chung, Hyunmee (Environmental Infrastructure Research Department, National Institute of Environmental Research) ;
  • Kwon, Ohsang (Environmental Infrastructure Research Department, National Institute of Environmental Research) ;
  • Park, Juhyun (Environmental Infrastructure Research Department, National Institute of Environmental Research)
  • 허유정 (국립환경과학원 환경기반연구부) ;
  • 양미희 (국립환경과학원 환경기반연구부) ;
  • 조양석 (국립환경과학원 환경기반연구부) ;
  • 안경희 (국립환경과학원 환경기반연구부) ;
  • 이연희 (국립환경과학원 환경기반연구부) ;
  • 정현미 (국립환경과학원 환경기반연구부) ;
  • 권오상 (국립환경과학원 환경기반연구부) ;
  • 박주현 (국립환경과학원 환경기반연구부)
  • Received : 2014.01.15
  • Accepted : 2014.03.03
  • Published : 2014.03.30
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Abstract

The knowledge on the migration of antimony (Sb) from PET bottles into the water is of greate concern. Antimony in all bottled water marketed in korea and in raw water was analyzed. The detection rate of antimony in total bottled water was 88 % and 100% in PET (Polyethylene terephthalate, PET), 55% in PC (Polycarbonate, PC) bottled water. 55% of raw water contained antimony. The average concentration of Sb in PET bottled water was $0.39{\mu}g/L$, higher than PC bottles ($0.20{\mu}g/L$) and the raw water ($0.22{\mu}g/L$). The migration of Sb into water that is stored in different conditions (room temperature, $45^{\circ}C$, and direct sunlight exposure) was investigated for 180 days. The migration tendency increased with the storage time and temperature. PET bottles showed a sharp increase of Sb concentration at $45^{\circ}C$, but there was no differences between the room temperature and sunlight exposure. The Sb migration in all simulated solution(deionized water, 4% acetic acid, and 20% ethanol) also increased with storage time and temperature. The Sb migration values ranged from 0.35 to $0.49{\mu}g/L$ in all simulated solution, which was far below the permissible korean migration level of $40{\mu}g/L$. There was a tendency that the number of re-use of a bottle and the amount of leaching were in inverse proportion.

Keywords

References

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