유류저장시설 인근 농경지 중 Benzene, Toluene, Ethylbenzene 및 Xylene (BTEX) 잔류량 모니터링
Monitoring of Benzene, Toluene, Ethylbenzene and Xylene (BTEX) Residues in Arable Lands around Oil Reservoir
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BACKGROUND: Benzene, toluene, ethylbenzene andxylene (BTEX), which are volatile aromatic hydrocarbonsand main constituents of gasoline, are neuro‐carcinogenicorganic pollutants in soil and groundwater. Korea Ministryof Environment has established the maximum permissiblelevel of BTEX in arable soil to 1, 20, 50 and 15 mg/kg,respectively. METHODS AND RESULTS: To understand an arable soilcontamination by BTEX, we collected 92 samples from thearable lands around oil reservoir, and analyzed the BTEXresidue using a GC‐MS with head‐space sampler. A linearcorrelation between BTEX concentration and peak areaswas detected with coefficient correlations in the range of0.9807‐0.9995. The method LOQ of BTEX was 0.002,0.014, 0.084, and 0.038 mg/kg, respectively. Recoveries of0.5 mg/kg BTEX were found to be 73.7‐96.9%. Theprecision 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 investigatedarable soils around airport and oil reservoir in Korea werenot contaminated by oils.
Abstract
BACKGROUND: Benzene, toluene, ethylbenzene andxylene (BTEX), which are volatile aromatic hydrocarbonsand main constituents of gasoline, are neuro‐carcinogenicorganic pollutants in soil and groundwater. Korea Ministryof Environment has established the maximum permissiblelevel of BTEX in arable soil to 1, 20, 50 and 15 mg/kg,respectively. METHODS AND RESULTS: To understand an arable soilcontamination by BTEX, we collected 92 samples from thearable lands around oil reservoir, and analyzed the BTEXresidue using a GC‐MS with head‐space sampler. A linearcorrelation between BTEX concentration and peak areaswas detected with coefficient correlations in the range of0.9807‐0.9995. The method LOQ of BTEX was 0.002,0.014, 0.084, and 0.038 mg/kg, respectively. Recoveries of0.5 mg/kg BTEX were found to be 73.7‐96.9%. Theprecision 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 investigatedarable soils around airport and oil reservoir in Korea werenot contaminated by oils.
참고문헌 (11)
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