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Luong Le Huy, Mai Trong Nhuan, Le Van Hoc, Trinh Nguyen Tinh, Le Anh Thang, Nguyen Van Ha, Hoang Van Tuan, Nguyen Tai Tue, Tran Dang Quy


The aim of this study is to clarify characteristics of marine environmental geochemistry from Nga Son to Cua Hoi (0-30 m water depth). The water and sediment samples were collected from March to April of each year during the period 2011 - 2013. Results indicated that salinity of seawater ranged from 1.2‰ to 33.3‰. The seawater environment was classified into neutral-weak oxidation in the layer from 0-10 m water depth and weak alkaline-weak oxidation in the layer 10-30 m water depth. Concentrations of most anions and elements in seawater had a decreasing trend from nearshore to offshore regions and with depth, with the exception of SO42-, CO32-, Mg, B-, Br-, I-. Sedimentary environment was highly dominated by neutral-strong oxidization and weak alkaline-weak oxidization for the zone from 0-10 m water depth and 10-30 m water depth, respectively. Concentrations of anions and elements tended to be higher in nearshore region than those in offshore zone, with the exception of SO42-, PO43-, NO3- and positively correlated with fine-grained sediment compositions. Total PCBs concentration increased from north to south, yet HCHs and DDTs had opposite trends. Compared with environmental quality guidelines, marine sediments and seawater were not polluted by heavy metals and organic compounds of PCBs and OCBs.


Environmental geochemistry, seawater, marine sediments, heavy metal, organic compounds, Nga Son.


HELCOM, 2007. Heavy metal pollution to the Baltic Sea in 2004. HELCOM Balt. Sea Environ. Proc. No. 108, 33p.

Valavanidis, A., and Vlachogianni, T., 2010. Metal pollution in ecosystems. Ecotoxicology studies and risk assessment in the marine environment. Sci. Adv. Environ. Toxicol. Ecot. Issues. chem-tox-ecotox. org/wp/wp-content/uploads/2010/01/02-Metals-17_01_2010. pdf [on line].

Naser, H. A., 2013. Assessment and management of heavy metal pollution in the marine environment of the Arabian Gulf: a review. Marine pollution bulletin, 72(1), 6-13.

Aderinola, O. J., Clarke, E. O., Olarinmoye, O. M., Kusemiju, V., and Anatekhai, M. A., 2009. Heavy metals in surface water, sediments, fish and Perwinklesof Lagos Lagoon. Am.-Eurasian J. Agric. Environ. Sci, 5(5), 609-617.

Esslemont, G., 2000. Heavy metals in seawater, marine sediments and corals from the Townsville section, Great Barrier Reef Marine Park, Queensland. Marine Chemistry, 71(3), 215-231.

Vizzini, S., Costa, V., Tramati, C., Gianguzza, P., and Mazzola, A., 2013. Trophic transfer of trace elements in an isotopically constructed food chain from a semi-enclosed marine coastal area (Stagnone di Marsala, Sicily, Mediterranean). Archives of environmental contamination and toxicology, 65(4),


Hedges, J. I., Clark, W. A., and Come, G. L., 1988. Organic matter sources to the water column and surficial sediments of a marine bay. Limnology and Oceanography, 33(5), 1116-1136.

Glasby, G. P., and Schulz, H. D., 1999. Eh Ph diagrams for Mn, Fe, Co, Ni, Cu and as under seawater conditions: application of two new types of eh ph diagrams to the study of specific problems in marine geochemistry. Aquatic geochemistry, 5(3), 227-248.

Addo, M. A., Okley, G. M., Affum, H. A., Acquah, S., Gbadago, J. K., Senu, J. K., and Botwe, B. O., 2011. Water quality and level of some heavy metals in water and sediments of Kpeshie lagoon, La-Accra, Ghana. Research Journal of Environmental and Earth Sciences, 3(5), 487-497.

Buccolieri, A., Buccolieri, G., Cardellicchio, N., Dell'Atti, A., Di Leo, A., and Maci, A., 2006. Heavy metals in marine sediments of Taranto Gulf (Ionian Sea, southern Italy). Marine Chemistry, 99(1), 227-235.

Ip, C. C., Li, X. D., Zhang, G., Wai, O. W., and Li, Y. S., 2007. Trace metal distribution in sediments of the Pearl River Estuary and the surrounding coastal area, South China. Environmental Pollution, 147(2), 311-323.

Wang, S., Jia, Y., Wang, S., Wang, X., Wang, H., Zhao, Z., and Liu, B., 2010. Fractionation of heavy metals in shallow marine sediments from Jinzhou Bay, China. Journal of Environmental Sciences, 22(1), 23-31.

Majer, A. P., Petti, M. A. V., Corbisier, T. N., Ribeiro, A. P., Theophilo, C. Y. S., de Lima Ferreira, P. A., and Figueira, R. C. L., 2014. Bioaccumulation of potentially toxic trace elements in benthic organisms of Admiralty Bay (King George Island, Antarctica). Marine Pollution Bulletin, 79(1), 321-325.

MONRE, 2015. National technical regulation on water quality (QCVN 10:2015/BTNMT). Vietnam Ministry of Natural Resources and Environment, Hanoi.

MONRE, 2012. National technical regulation on water quality (QCVN 43:2012/BTNMT). Vietnam Ministry of Natural Resources and Environment, Hanoi.

CCME, 2002. Canadian sediment quality guidlines for the protection of aquatic life: Summary tables update, In: Canadian sediment quality guidelines, 1999. Canadian Council of Ministers of the Environment.

Mai Trong Nhuan, 2006. Environmental Geochemistry. Vietnam National University Press, Hanoi. (In Vietnamese).

MOST, 2008. Determination of biochemical oxygen demand after n days (BODn) - Part 1: Dilution and seeding method whith allylthiourea addition. Vietnam Ministry of Science and Technology, Hanoi.

MOST, 1999. Water quality - Determination of the chemical oxigen demand. Vietnam Ministry of Science and Technology, Hanoi.

MOST, 2000. Soil quality - extraction of trace elements soluble in aqua regia. Vietnam Ministry of Science and Technology, Hanoi.

Dao Manh Tien, 2009. Research on the potential accumulation of pollutants in coastal sediment in Vietnam. Marine Natural Resources - Environment Survey Center, Hanoi.

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Journal of Marine Science and Technology ISSN: 1859 3097

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