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Monitoring of Benzene, Toluene, Ethylbenzene and Xylene (BTEX) Residues in Arable Lands around Oil Reservoir

유류저장시설 인근 농경지 중 Benzene, Toluene, Ethylbenzene 및 Xylene (BTEX) 잔류량 모니터링

  • Lim, Sung-Jin (Chemical Safety Division, Agro-Food Safety & Crop Protection Department, National Academy of Agricultural Science, Rural Development Administration) ;
  • Kim, Jin-Hyo (Chemical Safety Division, Agro-Food Safety & Crop Protection Department, National Academy of Agricultural Science, Rural Development Administration) ;
  • Choi, Geun-Hyoung (Chemical Safety Division, Agro-Food Safety & Crop Protection Department, National Academy of Agricultural Science, Rural Development Administration) ;
  • Cho, Nam-Jun (Chemical Safety Division, Agro-Food Safety & Crop Protection Department, National Academy of Agricultural Science, Rural Development Administration) ;
  • Hong, Jin-Hwan (Agro-Food Safety & Crop Protection Department National Academy of Agricultural Science, Rural Development Administration) ;
  • Park, Byung-Jun (Chemical Safety Division, Agro-Food Safety & Crop Protection Department, National Academy of Agricultural Science, Rural Development Administration)
  • 임성진 (농촌진흥청 국립농업과학원 농산물안전성부 화학물질안전과) ;
  • 김진효 (농촌진흥청 국립농업과학원 농산물안전성부 화학물질안전과) ;
  • 최근형 (농촌진흥청 국립농업과학원 농산물안전성부 화학물질안전과) ;
  • 조남준 (농촌진흥청 국립농업과학원 농산물안전성부 화학물질안전과) ;
  • 홍진환 (농촌진흥청 국립농업과학원 농산물안전성부) ;
  • 박병준 (농촌진흥청 국립농업과학원 농산물안전성부 화학물질안전과)
  • Received : 2014.11.01
  • Accepted : 2014.12.25
  • Published : 2014.12.31

Abstract

BACKGROUND: Benzene, toluene, ethylbenzene and xylene (BTEX), which are volatile aromatic hydrocarbons and main constituents of gasoline, are neuro-carcinogenic organic pollutants in soil and groundwater. Korea Ministry of Environment has established the maximum permissible level of BTEX in arable soil to 1, 20, 50 and 15 mg/kg, respectively. METHODS AND RESULTS: To understand an arable soil contamination by BTEX, we collected 92 samples from the arable lands around oil reservoir, and analyzed the BTEX residue using a GC-MS with head-space sampler. A linear correlation between BTEX concentration and peak areas was detected with coefficient correlations in the range of 0.9807-0.9995. The method LOQ of BTEX was 0.002, 0.014, 0.084, and 0.038 mg/kg, respectively. Recoveries of 0.5 mg/kg BTEX were found to be 73.7-96.9%. The precision was reliable since RSD percentage (0.7-7.5%) was below 30, which was the normal percent value. Also, BTEX in all samples were detected under the LOQ. CONCLUSION: These results showed that the investigated arable soils around airport and oil reservoir in Korea were not contaminated by oils.

Keywords

References

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