CONCENTRATION OF TOTAL AND ORGANIC MERCURY AND ANTAGONISTIC RELATIONSHIP BETWEEN SELENIUM AND ORGANIC MERCURY IN THE SEDIMENTS OF THE INTERNATIONAL ANZALI WETLAND

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ALIDOUST S.; BAHRAMIFAR N.; ESMAELI SARI A.

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Journal: IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT Year:2017 | Volume:10 | Issue:1 Page(s): 53-62

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Title

CONCENTRATION OF TOTAL AND ORGANIC MERCURY AND ANTAGONISTIC RELATIONSHIP BETWEEN SELENIUM AND ORGANIC MERCURY IN THE SEDIMENTS OF THE INTERNATIONAL ANZALI WETLAND

Author(s)

ALIDOUST S. | BAHRAMIFAR N. | ESMAELI SARI A. | Issue Writer Certificate

Keywords

ANZALI WETLANDQ2

SEDIMENTQ2

SELENIUMQ1

TOTAL MERCURYQ2

ORGANIC MERCURYQ1

Abstract

Background and Objective: Mercury (Hg) is considered as a global pollutant that is widely dispersed in the environment. Monitoring of TOTAL MERCURY (THg) concentration in the SEDIMENTs without determination of ORGANIC MERCURY (OHg) and SELENIUM (Se) is an unreliable approach to evaluate the precise toxicological effects of Hg. In the present study, concentrations of THg, OHg and Se in the surface SEDIMENTs of the eastern and western parts of ANZALI WETLAND were investigated. In addition, the correlation of THg and OHg with Se and total organic carbon were analyzed.Materials and Methods: Forty surface SEDIMENT samples were collected from the eastern and western parts of the wetland. Analysis of total and ORGANIC MERCURY in the SEDIMENT samples were done with Advanced Mercury Analyzer and the concentration of SELENIUM was measured using inductively coupled plasma atomic emission spectroscopy (ICP-OES).Results: The average concentrations of THg in the East and West wetlands were 109.53 and 68.39 ng/g dw, respectively. The average concentration of THg in the SEDIMENTs of the eastern part of ANZALI WETLAND was significantly higher than that of the western part (P<0.001). The mean concentrations of OHg in East and West wetland were about 34.91 and 28.84 ng/g dw, respectively. There was no significant relationship. The ratio of OHg to THg showed significant differences in the two studied areas. The average concentrations of Se in East and West wetlands were 156.25 and 163.75 ng/g dw, respectively. There was a significant negative correlation between the concentration of SELENIUM and ORGANIC MERCURY in SEDIMENTs of the western part of wetland (P<0.05).Conclusion: The THg concentration in the SEDIMENTs of ANZALI WETLAND was lower in comparison to other studied regions of the world. However, the percentage of OHg in the Eastern and Western part of wetland was high. Therefore, bioavailability and toxicity of Hg would be high in the SEDIMENTs and aquatic environment. In this study, in spite of high molar ratio of Se to THg, there was relatively high content of OHg. We recommend to measure the various Sespecies that are effectively bound to inorganic Hg and to determine the amount of Se and Hg in aquatic organisms.

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APA: Copy

ALIDOUST, S., BAHRAMIFAR, N., & ESMAELI SARI, A.. (2017). CONCENTRATION OF TOTAL AND ORGANIC MERCURY AND ANTAGONISTIC RELATIONSHIP BETWEEN SELENIUM AND ORGANIC MERCURY IN THE SEDIMENTS OF THE INTERNATIONAL ANZALI WETLAND. IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT, 10(1), 53-62. SID. https://sid.ir/paper/145823/en

Vancouver: Copy

ALIDOUST S., BAHRAMIFAR N., ESMAELI SARI A.. CONCENTRATION OF TOTAL AND ORGANIC MERCURY AND ANTAGONISTIC RELATIONSHIP BETWEEN SELENIUM AND ORGANIC MERCURY IN THE SEDIMENTS OF THE INTERNATIONAL ANZALI WETLAND. IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT[Internet]. 2017;10(1):53-62. Available from: https://sid.ir/paper/145823/en

IEEE: Copy

S. ALIDOUST, N. BAHRAMIFAR, and A. ESMAELI SARI, “CONCENTRATION OF TOTAL AND ORGANIC MERCURY AND ANTAGONISTIC RELATIONSHIP BETWEEN SELENIUM AND ORGANIC MERCURY IN THE SEDIMENTS OF THE INTERNATIONAL ANZALI WETLAND,” IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT, vol. 10, no. 1, pp. 53–62, 2017, [Online]. Available: https://sid.ir/paper/145823/en

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