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RISS 인기검색어
- 검색키워드
- 주제어 : Direct Mercury Analyzer (검색결과 3 건)
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박상원,양주석,김진경,박병준,김원일,최주현,권오경,류갑희 한국식품위생안전성학회 2008 한국식품위생안전성학회지 Vol.23 No.1
Objective of this study was to investigate the residual levels of mercury (Hg) in soil for “Top-rice” area and its uptake into rice plant for making sure food safety as compared to “Top-rice” & common rice produced from 2005 to 2006. Hg was analyzed with the direct mercury analyzer (DMA 80, Milestone, Italy), which implements the US/EPA method 7473. The average concentration of Hg in paddy soil was 0.031 mg/kg, which was below at 1/25- 1/65 fold of the threshold levels (concern level 4 mg/kg, action level 10 mg/kg) for soil contamination designated by “The Soil Environment Conservation Law” in Korea. The maximum residue level (MRLs) for Hg residue in the polished rice is not designated in Korea. Therefore, Hg contents in the polished rice of “Top-rice” brand and common rice were compared to other country's criteria. Hg contents in the polished rice of “Top-rice” brand was 0.0018 mg/kg, which was lower at 1/10-1/30 fold than the MRLs, 0.02 mg/kg of China criteria and 0.05 mg/kg of Taiwan criteria, respectively. Hg were 0.02788, 0.00896, 0.00182, 0.00189, 0.00166, 0.00452 and 0.00145 mg/kg in soil, rice straw, unhulled rice, rice hulls, brown rice, rice bran, and polished rice produced in 2006 “Top-rice” area, respectively. For the ratio of Hg as compared to Hg contents in soil, there were 0.321 of rice straw >> 0.162 of rice bran >> 0.068 of rice hulls > 0.065 of unhulled rice > 0.060 of brown rice> 0.052 of polished rice. And, the slope of Hg uptakes was steeped as following order; rice straw >> rice bran >> rice hulls > unhulled rice > brown rice > polished rice. It means that the more slope steeped was the more uptakes. For the distribution of Hg uptaken, there was 83.8% into rice straw, and 16.2% into unhulled rice, 2.8% into rice hulls, 12.4% into brown rice, 3.5% into rice bran and 9.7% into polished rice. Consequently, it was appeared that the Hg contamination in the polished rice should not be worried in Korea. Objective of this study was to investigate the residual levels of mercury (Hg) in soil for “Top-rice” area and its uptake into rice plant for making sure food safety as compared to “Top-rice” & common rice produced from 2005 to 2006. Hg was analyzed with the direct mercury analyzer (DMA 80, Milestone, Italy), which implements the US/EPA method 7473. The average concentration of Hg in paddy soil was 0.031 mg/kg, which was below at 1/25- 1/65 fold of the threshold levels (concern level 4 mg/kg, action level 10 mg/kg) for soil contamination designated by “The Soil Environment Conservation Law” in Korea. The maximum residue level (MRLs) for Hg residue in the polished rice is not designated in Korea. Therefore, Hg contents in the polished rice of “Top-rice” brand and common rice were compared to other country's criteria. Hg contents in the polished rice of “Top-rice” brand was 0.0018 mg/kg, which was lower at 1/10-1/30 fold than the MRLs, 0.02 mg/kg of China criteria and 0.05 mg/kg of Taiwan criteria, respectively. Hg were 0.02788, 0.00896, 0.00182, 0.00189, 0.00166, 0.00452 and 0.00145 mg/kg in soil, rice straw, unhulled rice, rice hulls, brown rice, rice bran, and polished rice produced in 2006 “Top-rice” area, respectively. For the ratio of Hg as compared to Hg contents in soil, there were 0.321 of rice straw >> 0.162 of rice bran >> 0.068 of rice hulls > 0.065 of unhulled rice > 0.060 of brown rice> 0.052 of polished rice. And, the slope of Hg uptakes was steeped as following order; rice straw >> rice bran >> rice hulls > unhulled rice > brown rice > polished rice. It means that the more slope steeped was the more uptakes. For the distribution of Hg uptaken, there was 83.8% into rice straw, and 16.2% into unhulled rice, 2.8% into rice hulls, 12.4% into brown rice, 3.5% into rice bran and 9.7% into polished rice. Consequently, it was appeared that the Hg contamination in the polished rice should not be worried in Korea.
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정다영 ( Da Young Chung ),최종호 ( Jong Ho Choi ),이정애 ( Jeong Ae Lee ),박경수 ( Kyung Su Park ),윤혜정 ( Hae Jung Yoon ),표희수 ( Hee Soo Pyo ) 한국환경분석학회 2012 환경분석과 독성보건 Vol.15 No.4
The present study analyzed total mercury in whole blood from total of 4500 samples: adults = 2000, students = 1000 and infants = 800 (parents = 600), of Korean that were collected between 2010 and 2011 survey years using Gold Amalgamation-Direct Mercury Analyser (DMA-80). Geometric mean (GM) of adults, students and infants (parents) were 3.90 μg/L, 2.15 μg/L, 2.06 μg/L (3.23 μg/L), respectively, showing proportional relationship between age and total mercury concentration in whole blood. When the samples were analyzed in relation to gender, total mercury concentration was higher in male samples (3.11 μg/L) than female samples (2.76 μg/L). When the samples were analyzed in relation region, total mercury concentration was higher in coastal area samples (3.60 μg/L) than inland area samples (2.98 μg/L) with significance (p<0.05). Total mercury concentrations of 496 pairs of mother and infant showed low linearity with R^2=0.026. The above statistical analysis was performed using PASW Statistics 18 (Version 18.0, SPSS, Chicago, IL).
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