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Uptake and elimination of iodine-131 by the freshwater clam Corbicula manilensis Philippi from water

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Date
1988
Author
Cuvin, Ma. Lourdes A.
Umaly, Ruben C.
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Abstract
Whole body uptake of Iodine-131 by the freshwater clam, Corbicula manilensis, from contaminated water was followed using NaI scintillation counter. The bioaccumulation factor (BF) exclusive of shell was 5.44. The degree of bioaccumulation of I-131 by the different tissues is as follows: visceral remains > gills > gut > gonads > mantle > muscle > foot. The specific activities of the different tissues corresponded with their BF values. The relative distribution of I-131 in the different tissues was generally proportional to the weight ratio of each tissue. Elimination studies gave the effective half-life, \(T^{e}_{0.5}\), of 4.5 days. Estimation of \(T_{0.5}^{e}\) in the different tissues gave the following values: 12 d (mantle), 3.9 d (gonad and muscle), 3.6 d (gut), 3.4 d (gills), 2.4 d (foot) and 1.9 d (visceral remains).
URI
http://hdl.handle.net/10862/1246
Suggested Citation
Cuvin, M. L. A., & Umaly, R. C. (1988). Uptake and elimination of iodine-131 by the freshwater clam Corbicula manilensis Philippi from water. Natural and Applied Science Bulletin, 40(3), 141-158. http://hdl.handle.net/10862/1246
Subject
aquatic molluscs; radioisotopes; bioaccumulation; iodine; Philippines; clams; Freshwater clam; Iodine-131
Taxonomic term
Corbicula manilensis
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