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Dr. JeongWook Seo
Environmental Health Center, Dong-A University, Busan 49201, Korea

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0 Data Analytics
0 Epidemiology
0 Heavy Metals
0 statistical analysis
0 enviromental health

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Journal article
Published: 28 June 2021 in International Journal of Environmental Research and Public Health
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In Korea, the estimated values of blood lead (Pb) and mercury (Hg) levels differ between two national-level biomonitors, namely the Korean National Environmental Health Survey and the Korea National Health and Nutrition Examination Survey. The present study used integrated data from these surveys to estimate the representative values of the change in concentration and recent distribution characteristics. The yearly trend of age-standardized exposure levels in regular adults was identified, and the geometric mean (GM) adjusted according to demographic characteristics was presented. Age-standardized GM for blood Pb and Hg in the integrated data was 2.06 and 3.64 μg/L in 2008, respectively, which decreased to 1.55 and 2.92 μg/L, respectively, by 2017. Adjusted GMs from most recently conducted surveys (2015–2017) were 1.61 and 2.98 μg/L for blood Pb and Hg, respectively. In particular, the adjusted percentage of blood Hg exceeding the reference value of 5 μg/L was 20.79%. While the blood Pb and Hg exposure levels are decreasing in Korea, the levels remain high relative to those in other countries. The Hg levels exceeded the reference value in many individuals. Therefore, continued biomonitoring must be conducted, and a reduction plan and exposure management are needed for harmful metals, including Hg.

ACS Style

Jeong-Wook Seo; Young-Seoub Hong; Byoung-Gwon Kim. Assessment of Lead and Mercury Exposure Levels in the General Population of Korea Using Integrated National Biomonitoring Data. International Journal of Environmental Research and Public Health 2021, 18, 6932 .

AMA Style

Jeong-Wook Seo, Young-Seoub Hong, Byoung-Gwon Kim. Assessment of Lead and Mercury Exposure Levels in the General Population of Korea Using Integrated National Biomonitoring Data. International Journal of Environmental Research and Public Health. 2021; 18 (13):6932.

Chicago/Turabian Style

Jeong-Wook Seo; Young-Seoub Hong; Byoung-Gwon Kim. 2021. "Assessment of Lead and Mercury Exposure Levels in the General Population of Korea Using Integrated National Biomonitoring Data." International Journal of Environmental Research and Public Health 18, no. 13: 6932.

Journal article
Published: 11 June 2021 in Toxics
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Arsenic (As) exists as highly toxic chemical species. Chronic exposure to its inorganic form can cause multiple organ failure and skin cancer in humans, warranting the need to determine the toxicity of each chemical species. This study evaluated the proportions of exposure to four chemical species of As (cAs), namely arsenite (AsIII), arsenate (AsV), monomethylarsinic acid (MMA), and dimethylarsenic acid (DMA), and it confirmed the necessity of evaluating biological exposure to cAs. Urine samples were collected from 457 subjects residing near 103 abandoned metal mines. Hydride generation atomic absorption spectroscopy (HG-AAS) was performed to measure the combined concentration of four cAs (hAsAAS). High-performance liquid chromatography and inductively coupled plasma-mass spectrometry (HPLC-ICP-MS) were performed to determine the concentrations of the individual cAs and the sum of the four cAs (hAsICP). The proportions of AsV and MMA were relatively higher in the low-hAsICP concentration section. These findings suggest that hAsAAS, which is mainly used for its cost-efficiency, is limited for evaluating exposure. Though hAsAAS was found to exist in a low concentration, highly toxic AsV and MMA could be observed in high concentrations. Therefore, HPLC-ICP-MS is recommended for assessing cAs in environmentally vulnerable areas such as abandoned metal mines.

ACS Style

Jeong-Wook Seo; Young-Seoub Hong. Necessity of Assessing Biological Exposure to Arsenic Species by Two Representative Analytical Methods. Toxics 2021, 9, 138 .

AMA Style

Jeong-Wook Seo, Young-Seoub Hong. Necessity of Assessing Biological Exposure to Arsenic Species by Two Representative Analytical Methods. Toxics. 2021; 9 (6):138.

Chicago/Turabian Style

Jeong-Wook Seo; Young-Seoub Hong. 2021. "Necessity of Assessing Biological Exposure to Arsenic Species by Two Representative Analytical Methods." Toxics 9, no. 6: 138.

Journal article
Published: 01 January 2021 in Annals of Occupational and Environmental Medicine
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We evaluated the level and factors of heavy metal exposure to children residing in the Togttsetsii, Khanbogd, and Bayandalai soums of South Gobi province, Mongolia. A total of 118 children aged 9–12 years were surveyed, and the level of heavy metal exposure in their bodies was investigated. Exposure was investigated by measuring concentrations of heavy metals such as cadmium, lead, and mercury in the blood; mercury concentration in the hair; and total arsenic in the urine. Blood cadmium concentration had geometric averages of 0.16 µg/L in the children from Bayandalai, 0.15 µg/L Tsogttsetsii, and 0.16 µg/L Khanbogd. Blood lead concentration showed a relatively higher geometric average of 7.42 µg/dL in the children from Bayandalai compared to 4.78 µg/dL and 5.15 µg/dL in those from Tsogttsetsii and Khanbogd, respectively. While blood mercury concentration was the highest in the children from Bayandalai, with a value of 0.38 µg/L, those from Tsogttsetsii and Khanbogd had similar concentrations of 0.29 µg/L and 0.29 µg/L, respectively. Hair mercury concentration was the highest in the children from Bayandalai, with a value of 78 µg/g, a particularly significant difference, with a concentration of 0.50 µg/g in those from Khanbogd. Urine arsenic concentration was the highest in the children from Khanbogd, with a value of 36.93 µg/L; it was 26.11 µg/L in those from Bayandalai and 23.89 µg/L in those from Tsogttsetsii. The high blood lead concentration of children in Bayandalai was judged to be due to other factors in addition to mine exposure; the reason why blood and hair mercury concentration was higher in children from Bayandalai may have been due to exposure to many small-scale gold mines in the area. In the case of Khanbogd, it was estimated that the high arsenic level in urine was caused by the effect of mines.

ACS Style

Ulziikhishig Surenbaatar; Byoung-Gwon Kim; Jeong-Wook Seo; Hyoun-Ju Lim; Jung-Yeon Kwon; Min-Kyung Kang; Enkhjargal Altangerel; Tsogtbaatar Byambaa; Suvd Batbaatar; Oyunchimeg Myagmardorj; Chul-Woo Lee; Young-Seoub Hong. Environmental health survey for children residing near mining areas in South Gobi, Mongolia. Annals of Occupational and Environmental Medicine 2021, 33, 1 .

AMA Style

Ulziikhishig Surenbaatar, Byoung-Gwon Kim, Jeong-Wook Seo, Hyoun-Ju Lim, Jung-Yeon Kwon, Min-Kyung Kang, Enkhjargal Altangerel, Tsogtbaatar Byambaa, Suvd Batbaatar, Oyunchimeg Myagmardorj, Chul-Woo Lee, Young-Seoub Hong. Environmental health survey for children residing near mining areas in South Gobi, Mongolia. Annals of Occupational and Environmental Medicine. 2021; 33 ():1.

Chicago/Turabian Style

Ulziikhishig Surenbaatar; Byoung-Gwon Kim; Jeong-Wook Seo; Hyoun-Ju Lim; Jung-Yeon Kwon; Min-Kyung Kang; Enkhjargal Altangerel; Tsogtbaatar Byambaa; Suvd Batbaatar; Oyunchimeg Myagmardorj; Chul-Woo Lee; Young-Seoub Hong. 2021. "Environmental health survey for children residing near mining areas in South Gobi, Mongolia." Annals of Occupational and Environmental Medicine 33, no. : 1.

Journal article
Published: 28 August 2020 in International Journal of Environmental Research and Public Health
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This study compares the heavy metal exposure levels of the population of abandoned metal mines, with high risks of environmental pollution and health effects. We used data from a two-stage abandoned metal mines survey (AMS, n = 4467). The Korea National Health and Nutrition Examination Survey (KNHANES) and the Korea National Environmental Health Survey (KNEHS) were used as general population data. Based on the sex and age distribution in the AMS, a simple random sampling was performed, so that the two datasets had the same distribution (KNHANES n = 1815, KNEHS n = 2328). Blood lead concentrations were slightly higher in the AMS than in KNEHS. Blood cadmium concentrations were similar between the two groups. However, the difference in urine cadmium concentrations was pronounced and statistically significant. Moreover, 30.6% of the AMS data for urine cadmium concentration exceeded the 95th percentile of the KNEHS data. The concentration of lead and cadmium in the residents of the abandoned metal mines, i.e., the vulnerable regions, was higher than that in the general population. It is necessary to monitor and manage the vulnerable regions via a more active and extensive survey system.

ACS Style

Jeong-Wook Seo; Young-Seoub Hong. Comparative Evaluation of Heavy Metal Concentrations in Residents of Abandoned Metal Mines. International Journal of Environmental Research and Public Health 2020, 17, 6280 .

AMA Style

Jeong-Wook Seo, Young-Seoub Hong. Comparative Evaluation of Heavy Metal Concentrations in Residents of Abandoned Metal Mines. International Journal of Environmental Research and Public Health. 2020; 17 (17):6280.

Chicago/Turabian Style

Jeong-Wook Seo; Young-Seoub Hong. 2020. "Comparative Evaluation of Heavy Metal Concentrations in Residents of Abandoned Metal Mines." International Journal of Environmental Research and Public Health 17, no. 17: 6280.

Journal article
Published: 07 July 2020 in International Journal of Environmental Research and Public Health
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Women of childbearing age who are susceptible to mercury exposure were studied to understand the relation between mercury intake through fish and shellfish consumption and mercury exposure indices from blood, hair, and urine samples. A total of 711 women of childbearing age from coastal areas with a high concentration of mercury exposure in Korea were studied. Data were collected on demographic characteristics, dietary intake of fish and shellfish using the simple Food Frequency Questionnaire. Mercury concentration was estimated from the collected samples of blood, hair, and urine. The geometric mean of blood methyl mercury concentration of mercury exposure through seafood was 3.06 μg/L for the low tertile, 3.12 μg/L for the middle tertile, and 3.60 μg/L for the high tertile, indicating a clear tendency of blood methyl mercury to increase as the mercury exposure by fish and shellfish intake ascended. For total blood mercury and hair mercury, the middle and high tertiles had higher values than the low. Mercury exposure through fish and shellfish intake is a main factor for an increase of blood methyl mercury concentration in women of childbearing age. More attention needs to be paid to mercury exposure through seafood intake, considering the serious effect mercury concentration has on women of childbearing age.

ACS Style

Jeong-Wook Seo; Byoung-Gwon Kim; Young-Seoub Hong. The Relationship between Mercury Exposure Indices and Dietary Intake of Fish and Shellfish in Women of Childbearing Age. International Journal of Environmental Research and Public Health 2020, 17, 4907 .

AMA Style

Jeong-Wook Seo, Byoung-Gwon Kim, Young-Seoub Hong. The Relationship between Mercury Exposure Indices and Dietary Intake of Fish and Shellfish in Women of Childbearing Age. International Journal of Environmental Research and Public Health. 2020; 17 (13):4907.

Chicago/Turabian Style

Jeong-Wook Seo; Byoung-Gwon Kim; Young-Seoub Hong. 2020. "The Relationship between Mercury Exposure Indices and Dietary Intake of Fish and Shellfish in Women of Childbearing Age." International Journal of Environmental Research and Public Health 17, no. 13: 4907.

Journal article
Published: 27 November 2017 in International Journal of Environmental Research and Public Health
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Recent epidemiological studies have reported adverse health effects, including skin cancer, due to low concentrations of arsenic via drinking water. We conducted a study to assess whether low arsenic contaminated ground water affected health of the residents who consumed it. For precise biomonitoring results, the inorganic (trivalent arsenite (As III) and pentavalent arsenate (As V)) and organic forms (monomethylarsonate (MMA) and dimethylarsinate (DMA)) of arsenic were separately quantified by combining high-performance liquid chromatography and inductively coupled plasma mass spectroscopy from urine samples. In conclusion, urinary As III, As V, MMA, and hair arsenic concentrations were significantly higher in residents who consumed arsenic contaminated ground water than control participants who consumed tap water. But, most health screening results did not show a statistically significant difference between exposed and control subjects. We presume that the elevated arsenic concentrations may not be sufficient to cause detectable health effects. Consumption of arsenic contaminated ground water could result in elevated urinary organic and inorganic arsenic concentrations. We recommend immediate discontinuation of ground water supply in this area for the safety of the residents.

ACS Style

Young-Seoub Hong; Byeong-Jin Ye; Yu-Mi Kim; Byoung-Gwon Kim; Gyeong-Hui Kang; Jeong-Jin Kim; Ki-Hoon Song; Young-Hun Kim; Jeong-Wook Seo. Investigation of Health Effects According to the Exposure of Low Concentration Arsenic Contaminated Ground Water. International Journal of Environmental Research and Public Health 2017, 14, 1461 .

AMA Style

Young-Seoub Hong, Byeong-Jin Ye, Yu-Mi Kim, Byoung-Gwon Kim, Gyeong-Hui Kang, Jeong-Jin Kim, Ki-Hoon Song, Young-Hun Kim, Jeong-Wook Seo. Investigation of Health Effects According to the Exposure of Low Concentration Arsenic Contaminated Ground Water. International Journal of Environmental Research and Public Health. 2017; 14 (12):1461.

Chicago/Turabian Style

Young-Seoub Hong; Byeong-Jin Ye; Yu-Mi Kim; Byoung-Gwon Kim; Gyeong-Hui Kang; Jeong-Jin Kim; Ki-Hoon Song; Young-Hun Kim; Jeong-Wook Seo. 2017. "Investigation of Health Effects According to the Exposure of Low Concentration Arsenic Contaminated Ground Water." International Journal of Environmental Research and Public Health 14, no. 12: 1461.

Journal article
Published: 01 January 2014 in Journal of Korean Medical Science
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This study was performed to evaluate the effect of dietary factors for mercury exposure by comparing with blood mercury concentration. Study population consisted of 1,866 adults (839 men and 1,027 women) in randomly-selected 30 districts in southeast Korea. Dietary mercury intake was calculated from food frequency questionnaire (FFQ) on seafood items and 24 hr recall record. Blood mercury concentration was measured with atomic absorption spectrometry. Mean age of the subjects was 43.5 ± 14.6 yr. The FFQ showed that mercury-laden fish (tuna, shark) and frequently-eating fish (squid, belt fish, mackerel) were important in mercury intake from fish species. The recall record suggested that fish and shellfish was a highest group (63.1%) of mercury intake and had a wide distribution in the food groups. In comparison with the blood mercury concentration, age group, sex, household income, education, drinking status and coastal area were statistically significant (P < 0.001). In multiple regression analysis, coefficient from the FFQ (β = 0.003) had greater effect on the blood mercury than the recall record (β = 0.002), but the effect was restricted (adjusted R2 = 0.234). Further studies with more precise estimation of dietary mercury intake were required to evaluate the risk for mercury exposure by foods and assure risk communication with heavily-exposed group.

ACS Style

Chang-Hun You; Byoung-Gwon Kim; Yu-Mi Kim; Sang-Ah Lee; Rock-Bum Kim; Jeong-Wook Seo; Young-Seoub Hong. Relationship between Dietary Mercury Intake and Blood Mercury Level in Korea. Journal of Korean Medical Science 2014, 29, 176 -182.

AMA Style

Chang-Hun You, Byoung-Gwon Kim, Yu-Mi Kim, Sang-Ah Lee, Rock-Bum Kim, Jeong-Wook Seo, Young-Seoub Hong. Relationship between Dietary Mercury Intake and Blood Mercury Level in Korea. Journal of Korean Medical Science. 2014; 29 (2):176-182.

Chicago/Turabian Style

Chang-Hun You; Byoung-Gwon Kim; Yu-Mi Kim; Sang-Ah Lee; Rock-Bum Kim; Jeong-Wook Seo; Young-Seoub Hong. 2014. "Relationship between Dietary Mercury Intake and Blood Mercury Level in Korea." Journal of Korean Medical Science 29, no. 2: 176-182.