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Mercury Concentrations of Maternal and Umbilical Cord Blood in Korean Pregnant Women: Preliminary Study
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Kyung Eun Lee, Young Seoub Hong, Dae Seon Kim, Myoung Seok Han, Byeng Chul Yu, Young Wook Kim, Mee Sook Roh, Hyun Jae Lee, Jae Won Lee, Jong Young Kwak, Joon Youn Kim
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Korean Journal of Occupational and Environmental Medicine 2007;19(4):268-275. Published online December 31, 2007
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DOI: https://doi.org/10.35371/kjoem.2007.19.4.268
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 Abstract
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To evaluate the level of maternal and prenatal mercury exposure and to analyze the related factors.
METHODS
Fifty-nine pregnant women were recruited into this study after obtaining informed consent. Samples were collected at delivery from normal pregnant women who were living in the city of Busan, Korea. Mercury concentrations in maternal and umbilical cord blood samples were measured using a gold-amalgam collection method. The total and methyl mercury levels of 36 of the 59 pregnant women were analyzed after randomization, and the results were compared.
RESULTS
The mean total mercury concentration was 3.16+/-1.21 ppb and 5.43+/-2.22 ppb in maternal and cord blood, respectively. The average, maternal blood mercury level was lower than the prescribed toxic limit for human (WHO, 5 ppb), whereas the cord blood mercury was higher. The mercury exposure level exceeded the WHO recommendation in 5 (8.47%) cases of maternal blood and 29 of (49.15%) cord blood. There was a significant correlation between maternal and cord blood mercury concentrations. Total mercury and methyl mercury concentrations of the 36 random pregnant women were 3.06+/-1.17 ppb, and 2.60+/-1.11 ppb in maternal blood, and 5.20+/-2.36 ppb, and 4.70+/-1.97 ppb in cord blood, respectively. Methyl mercury accounted for 85.0% of the total mercury in maternal blood and 90.4% in cord blood. There was a significant correlation between total and methyl mercury concentrations.
CONCLUSIONS
The study results suggest that mercury concentrations of cord blood may be regarded as indicative of high prenatal mercury exposure. Therefore, further studies are necessary to explain the cause of high mercury concentrations in cord blood, and to examine its relationship with various health indices.
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Citations
Citations to this article as recorded by  - Risk assessment of heavy metals in tuna from Japanese restaurants in the Republic of Korea
Seong-Jin Bae, Kyu-Sik Shin, Chulyong Park, Kiook Baek, So-Young Son, Joon Sakong
Annals of Occupational and Environmental Medicine.2023;[Epub] CrossRef - The Relationship between Mercury Exposure Indices and Dietary Intake of Fish and Shellfish in Women of Childbearing Age
Jeong-wook Seo, Byoung-gwon Kim, Young-seoub Hong
International Journal of Environmental Research and Public Health.2020; 17(13): 4907. CrossRef - Biomonitoring of Lead, Cadmium, Total Mercury, and Methylmercury Levels in Maternal Blood and in Umbilical Cord Blood at Birth in South Korea
Yu-Mi Kim, Jin-Young Chung, Hyun An, Sung Park, Byoung-Gwon Kim, Jong Bae, Myoungseok Han, Yeon Cho, Young-Seoub Hong
International Journal of Environmental Research and Public Health.2015; 12(10): 13482. CrossRef - Correlation Between Total Mercury and Methyl Mercury-In Whole Blood of South Korean
Seon A Jung, Dayoung Chung, Jiwon On, Myeong Hee Moon, Jeongae Lee, Heesoo Pyo
Bulletin of the Korean Chemical Society.2013; 34(4): 1101. CrossRef - The Influence of Fish Consumption on Umbilical Cord Blood Mercury Level in Pregnant Women in the City of Tongyeong, Korea
Chul-Won Jang, Sang-Hyun Kim, Jong-Duck Choi
Journal of Food Hygiene and Safety.2012; 27(1): 74. CrossRef
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A Case of Lung Cancer Caused by Long-Term Asbestos Exposure
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Dong Young Yoon, Jin Wook Kang, Hyun Jae Lee, Jung Il Kim, Ji Eun Son, Kap Yeol Jung, Joon Youn Kim, Mee Sook Roh
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Korean Journal of Occupational and Environmental Medicine 2004;16(4):499-507. Published online December 31, 2004
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DOI: https://doi.org/10.35371/kjoem.2004.16.4.499
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Abstract
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- OBJECTIVES
To report a case of lung cancer caused by long-term asbestos exposure in a shipyard.
METHODS
We evaluated chest X-ray, pulmonary function test, and chest CT and analyzed asbestos concentration in the lung tissue and bulk sample from the workplace. We also performed a workplace survey.
RESULTS
The patient had worked at the shipyard for 31 years. The biopsy samples were processed to determine the asbestos content in the lung tissue and bulk sample using a transmission electron microscope (TEM) equipped with an energy dispersive X-ray analyzer (EDX). The TEM-EDX analysis revealed many asbestos fibers, the majority of which were amosite. In addition, the concentration asbestos fibers in the workplace exceeded the occupational exposure limits of asbestos.
CONCLUSIONS
Our findings strongly suggest that this patient's lung cancer was related to the long-term asbestos exposure.
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Citations
Citations to this article as recorded by - Gastric and rectal cancers in workers exposed to asbestos: a case series
Byeong Ju Choi, Saerom Lee, Iu Jin Lee, Soon Woo Park, Sanggil Lee
Annals of Occupational and Environmental Medicine.2020;[Epub] CrossRef - Radiologic Diagnosis of Asbestos-Related Lung Cancer
Yoon Kyung Kim, Jeung Sook Kim, Yookyung Kim
Journal of the Korean Society of Radiology.2015; 73(6): 347. CrossRef - Comparison of cancer incidence between production and office workers at a shipyard in Korea: A retrospective cohort study from 1992 to 2005
Kyoung‐Sook Jeong, Yangho Kim, Moon‐Chan Kim, Cheol‐In Yoo
American Journal of Industrial Medicine.2011; 54(9): 719. CrossRef - Occupational Respiratory Cancer in Korea
Hye-Eun Lee, Hyoung Ryoul Kim
Journal of Korean Medical Science.2010; 25(Suppl): S94. CrossRef
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