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http://dx.doi.org/10.5338/KJEA.2013.32.3.224

Bioconcentration Factor(BCF) of Perchlorate from Agricultural Products and Soils  

Kim, Ji-Young (Department of Agro-Food Safety, National Academy of Agricultural Science, Rural Development Administration)
Kim, Min-Ji (Department of Agro-Food Safety, National Academy of Agricultural Science, Rural Development Administration)
Lee, Jeong-Mi (Department of Agro-Food Safety, National Academy of Agricultural Science, Rural Development Administration)
Kim, Doo-Ho (Department of Agro-Food Safety, National Academy of Agricultural Science, Rural Development Administration)
Park, Ki-Moon (Department of Food Science & Biotechnology, Sungkyunkwan University)
Kim, Won-Il (Department of Agro-Food Safety, National Academy of Agricultural Science, Rural Development Administration)
Publication Information
Korean Journal of Environmental Agriculture / v.32, no.3, 2013 , pp. 224-230 More about this Journal
Abstract
BACKGROUND: Perchlorate(${ClO_4}^-$) is an anion that is extremely water-soluble and environmentally stable. It mostly exists in the form of sodium perchlorate, ammonium perchlorate and potassium perchlorate which are used in rocket fuels, propellants, ignitable sources, air bag inflation systems and explosives. Perchlorate can be taken into the thyroid glands and interfere with iodide uptake. The determination of perchlorate in agricultural products is important due to its potential health impact on humans. The objective of this study was to determine the perchlorate concentrations in the samples of various agricultural products and soils. METHODS AND RESULTS: In this study, samples of cereal(Rice, Barley, Corn, Bean), vegetable(Spinach, Lettuce, Sesame, Chives, Chili, Pumpkin, Tomato), fruit(Apple, Pear, Tangerine, Grape) were analyzed for perchlorate contents. Perchlorate concentrations were analyzed by liquid chromatography-tandem mass spectrometry. The results showed that agricultural products respectively contained perchlorate concentrations in the range of : cereals N.D.~$7.46{\mu}g/kg$, vegetables $0.52{\sim}23.06{\mu}g/kg$, fruits $0.19{\sim}2.66{\mu}g/kg$. Bioconcentration factor was in the order of : vegetables > cereals > fruits. Bioconcentration factor was highest follwed by Sesame 37.88, Corn 21.51, Spinach 10.57, Tangerine 4.39, Chives 2.89 and Lettuce 1.90. The recoveries of perchlorate from spiked agricultural products and soils ranged from 87.72~111.26% and 102.09~111.23%. CONCLUSION(S): The health risk assessment results obtained in this study are lower than the RfD(Reference Dose, 0.0007 mg/kg/body weight/day) value as suggested by the Integrated Risk Information System(US IRIS). Our results indicate that, people currently exposed to perchlorate from agricultural products consumption are considered as safe.
Keywords
Agricultural products; Bioconcentration Factor(BCF); Monitoring; Perchlorate; Soils;
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Times Cited By KSCI : 3  (Citation Analysis)
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