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Human health risks from metals and metalloid via consumption of food animals near gold mines in Tarkwa, Ghana: Estimation of the daily intakes and target hazard quotients (THQs)

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タイトル: Human health risks from metals and metalloid via consumption of food animals near gold mines in Tarkwa, Ghana: Estimation of the daily intakes and target hazard quotients (THQs)
著者: Bortey-Sam, Nesta 著作を一覧する
Nakayama, Shouta M. M. 著作を一覧する
Ikenaka, Yoshinori 著作を一覧する
Akoto, Osei 著作を一覧する
Baidoo, Elvis 著作を一覧する
Yohannes, Yared Beyene 著作を一覧する
Mizukawa, Hazuki 著作を一覧する
Ishizuka, Mayumi 著作を一覧する
キーワード: Offal
Muscle
Estimated daily intake
Target hazard quotient
Ghana
発行日: 2015年 1月
出版者: Elsevier
誌名: Ecotoxicology and environmental safety
巻: 111
開始ページ: 160
終了ページ: 167
出版社 DOI: 10.1016/j.ecoenv.2014.09.008
抄録: Heavy metal and metalloid contamination in food resulting from mining is of major concern due to the potential risk involved. Food consumption is the most likely route of human exposure to metals. This study was therefore to assess metals in different organs and different animal species near gold mines used for human consumption (free-range chicken, goat and sheep) in Tarkwa, Ghana, and to estimate the daily intake and health risk. The concentrations of Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Cd, and Pb were measured with an inductively coupled plasma-mass spectrometer and Hg analysis was done using the mercury analyzer. Principal component analysis of the results showed a clear separation between chicken, grouped on one side, and the ruminants clustered on another side in both offal and muscle. Interestingly, As, Cd, Hg, Mn and Pb made one cluster in the offal of chicken. Chicken muscle also showed similar distribution with As, Hg and Pb clustered together. The daily intake of metals (mu g/kg body weight/day) were in the following ranges; As [0.002 (kidneys of goat and sheep)-0.19 (chicken gizzard)], Cd [0.003 (chicken muscle)-0.55 (chicken liver)], Hg [0.002 (goat muscle)-0.29 (chicken liver)], Pb [0.01 (muscles and kidneys of goat and sheep)-0.96 (chicken gizzard)] and Mn [0.13 (goat kidney)-8.92 (sheep liver)]. From the results, daily intakes of As, Cd, Hg, Pb and Mn in these food animals were low compared to the provisional tolerable daily intake guidelines. The THQs although less than one, indicated that contributions of chicken gizzard and liver to toxic metal exposure in adults and especially children could be significant. (C) 2014 Published by Elsevier Inc.
資料タイプ: article (author version)
URI: http://hdl.handle.net/2115/57933
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 石塚 真由美

 

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