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The Study of Heavy Metals (Hg, Cd, Pb and Cu) Levels in Sediments of North-West of Persian Gulf - Imam Khomeini Port
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Ali Azimi   , Ali Dadolahi Sohrab , Alireza Safahieh , Hosein Zolgharnein , Ahmad Savari , Iraj Faghiri |
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Abstract: (26194 Views) |
| The port of Imam Khomeini is located in the north-west of the Persian Gulf where ships and vessels traffic
and the existence of several industries especially petrochemical industries caused the influx of various
organic and non-organic contaminants such as heavy metals into the ecosystem. Heavy metals are the
major group of dangerous contaminants in marine environment. Due to their persistence, they may enter
aquatic food chains and transfer from one trophic level to another. They may be harmful for human being
which is placed at the top of the food chain. In this study, sediments were sampled from 5 stations
including harbors of Petroshimi, Doc Sorsoreh, No.15, No. 28 and No. 33 in the port of Imam Khomeini
during March 2010. The samples were freeze dried and acid digested in order to determine their heavy
metal content using Atomic Absorption Spectrophotometry. The ranges of Hg, Cd, Pb and Cu in sediments
were 0.5 to 4.4, ND (≤0.5), 3.2 to 8.2 and 15.2 to 19.8μg/g of dry weight respectively. The highest
contamination of Hg, Pb and Cu were measured in harbor of Petroshimi station while the lowest level of
these metals was measured in harbor No. 28. Among all metals, concentration of Hg in sediments were
more than standard limits. This can be dangerous for public health. Therefore, regular monitoring of heavy
metals, especially mercury in this area is recommended. |
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| Keywords: Pollution, Heavy metals, Sediments, Imam Khomeini Port, Persian Gulf. |
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Full-Text [PDF 133 kb]
(5724 Downloads)
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Type of Study: Research/ Original/ Regular Article |
Received: 2012/12/11 | Revised: 2012/12/12 | Accepted: 2013/09/22 | ePublished: 2013/09/22
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