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Article

Monitoring Arsenic Species Content in Seaweeds Produced off the Southern Coast of Korea and Its Risk Assessment

1
Department of Biotechnology, College of Life Science & Biotechnology, Korea University, Seoul 02841, Korea
2
Department of Statistics, College of Natural Science, Dongguk University, Seoul 04620, Korea
*
Author to whom correspondence should be addressed.
Environments 2020, 7(9), 68; https://doi.org/10.3390/environments7090068
Received: 22 July 2020 / Revised: 29 August 2020 / Accepted: 31 August 2020 / Published: 3 September 2020
Seaweed, a popular seafood in South Korea, has abundant dietary fiber and minerals. The toxicity of arsenic compounds is known to be related to their chemical speciation, and inorganic arsenic (iAs) is more detrimental than other species. Due to the different toxicities of the various chemical forms, speciation analysis is important for evaluating arsenic exposure. In this study, total arsenic (tAs) and six arsenic species (arsenite, arsenate, monomethylarsonic acid, dimethylarsinic acid, arsenobetaine, and arsenocholine) were analyzed in 180 seaweed samples. Although there were differences between seaweed species, the concentration of tAs was detected at levels ranging from 1 to 100 µg/g, and the distribution of six arsenic species differed depending on the seaweed species. No correlation between the concentration of iAs and tAs was found in most seaweed species. Through statistical clustering, hijiki and gulfweed were seen to be the seaweeds with the highest ratios of iAs to tAs. Using the iAs concentration data from the arsenic speciation analysis, a risk assessment of seaweed intake in South Korea was conducted. The margin of exposure values showed no meaningful risk for the general population, but low levels of risk were identified for seaweed consumers, with high intakes of gulfweed and hijiki. View Full-Text
Keywords: arsenic speciation; seaweed; monitoring; risk assessment arsenic speciation; seaweed; monitoring; risk assessment
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MDPI and ACS Style

Kim, M.-h.; Kim, J.; Noh, C.-H.; Choi, S.; Joo, Y.-S.; Lee, K.-W. Monitoring Arsenic Species Content in Seaweeds Produced off the Southern Coast of Korea and Its Risk Assessment. Environments 2020, 7, 68. https://doi.org/10.3390/environments7090068

AMA Style

Kim M-h, Kim J, Noh C-H, Choi S, Joo Y-S, Lee K-W. Monitoring Arsenic Species Content in Seaweeds Produced off the Southern Coast of Korea and Its Risk Assessment. Environments. 2020; 7(9):68. https://doi.org/10.3390/environments7090068

Chicago/Turabian Style

Kim, Min-hyuk, Junseob Kim, Chang-Hyun Noh, Seogyeong Choi, Yong-Sung Joo, and Kwang-Won Lee. 2020. "Monitoring Arsenic Species Content in Seaweeds Produced off the Southern Coast of Korea and Its Risk Assessment" Environments 7, no. 9: 68. https://doi.org/10.3390/environments7090068

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