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:: Volume 7, Number 21 (Summer 2013) ::
IJT 2013, 7(21): 836-841 Back to browse issues page
Bioavailability and Variability of Cd, Pb, Zn, and Cu Pollution in Soft Tissues and Shell of Saccostrea cucullata Collected from the Coast of Qeshm Island, Persian Gulf, Iran
Ali Kazemi, Alireza Riyahi Bakhtiari *, Asma Mohammad Karami, Behnam Haidari, Nabiallah Kheirabadi
Department of Environmental Sciences, Tarbiat Modares University, Noor, Mazandaran, Iran. , riahi@modares.ac.ir
Abstract:   (5208 Views)
Background: Marine pollution is a global environmental problem that its monitoring by ideal biomonitors is of great importance. Marine organisms, especially mussels, have the ability to accumulate metals from the environment they can be considered as a biomonitoring agent.
Methods: In this study, concentrations of heavy metals were measured in Saccostrea cucullata collected from seven sites on Qeshm Island's Coast. To achieve a digesting sample, each soft tissue was obtained and each of the shell homogeneous powders, 0.8 g and 1 g, respectively, were mixed with 10 mL HNO3 (69%) and poured into a PTFE digestion vessel. The prepared samples were evaluated for Cd, Cu, and Zn by using a flame AAS Model 67OG and for Pb by using a graphite furnace AAS.
Results: The distributions of metals between soft tissues and shells were compared in each sampling site. For seven sites, Cd, Zn, and Cu levels in soft tissues were higher than in the shells, but Pb level was higher in the shells than in the soft tissues. In addition, the results indicated the coefficient of variation (CV) in the soft tissues was lower than the shells for Cd, and in the shells lower than the soft tissues for Pb, whereas the CV values were different in both the soft tissues and shells for Zn and Cu.
Conclusion: The results of this study support using these materials in S. cucullata for biomonitoring. Shells are appropriate for monitoring Pb contamination, and the soft tissues are more apt for monitoring Cd, Zn, and Cu contamination.
Keywords: Biomonitoring, Heavy Metals, Persian Gulf, Qeshm Island, Saccostrea cucullata.
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Type of Study: Research | Subject: Special
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Kazemi A, Riyahi Bakhtiari A, Mohammad Karami A, Haidari B, Kheirabadi N. Bioavailability and Variability of Cd, Pb, Zn, and Cu Pollution in Soft Tissues and Shell of Saccostrea cucullata Collected from the Coast of Qeshm Island, Persian Gulf, Iran. IJT. 2013; 7 (21) :836-841
URL: http://ijt.arakmu.ac.ir/article-1-211-en.html
Volume 7, Number 21 (Summer 2013) Back to browse issues page
مجله سم شناسی و مسمومیتهای ایران Iranian Journal of Toxicology
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