Carbonate system of the Razdolnaya River estuary (Amur Bay, Sea of Japan)

The study of diatoms in the sediments of the Amur Bay (Sea of Japan), formed over the last 2000 years, showed that the sharp short-term drops in the concentration of diatoms coincide with the minima of bromine content, which can be explained by the influence of typhoons or other catastrophic events leading to floods and used later in paleoreconstructions.

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Analysis of the Ecotoxicological Conditions of Amur Bay, the Sea of Japan, by Chemical and Toxicological Characteristics

Water Resources ◽

10.1134/s0097807819030059 ◽

2019 ◽

Vol 46 (3) ◽

pp. 432-442

Author(s):

S. A. Cherkashin ◽

M. V. Simokon’ ◽

T. S. Pryazhevskaya

Keyword(s):

Sea Of Japan ◽

The Sea Of Japan ◽

Amur Bay

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Geochemical features of REE and Y accumulation in the subcolloid fraction of sediments from the northern part of Amur Bay (Sea of Japan)

Geochemistry International ◽

10.1134/s001670291705010x ◽

2017 ◽

Vol 55 (5) ◽

pp. 489-495

Author(s):

D. M. Polyakov ◽

N. V. Zarubina

Keyword(s):

Sea Of Japan ◽

Amur Bay

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Accumulation of heavy metals in sediments of Amur Bay (Sea of Japan) under the infl uence of biochemical factors

Водные ресурсы ◽

10.31857/s0321-0596462172-177 ◽

2019 ◽

Vol 46 (2) ◽

pp. 172-177

Author(s):

D. M. Polyakov ◽

A. A. Maryash ◽

A. V. Mozherovsky

Keyword(s):

Heavy Metals ◽

Humic Substances ◽

Sea Of Japan ◽

Bottom Sediments ◽

Average Content ◽

Amur Bay ◽

Fe And Mn

The average content of the elements Fe, Mn, Zn, Pb, Cu, Cr, V, Co, Cd, Ni, As, and Mo in the subcolloidal fraction of bottom sediments in the northern and central parts of the Amur Bay (in Russia) was determined. An increase of 5–17% in the content of the metals Pb, Co, Ni, Zn, Cr, V, and As in bottom sediments affected directly by the Razdolnaya River was determined and was found to be associated with sorption on Fe and Mn oxyhydroxides. An increase of 21–55% in the content of the metals Cu and Mo and of the metalloid As compared to their average content in the bottom sediments of the bay was found to be associated with the accumulation by humic substances.

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Polycyclic Aromatic Hydrocarbons in the Estuaries of Two Rivers of the Sea of Japan

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph17176019 ◽

2020 ◽

Vol 17 (17) ◽

pp. 6019

Author(s):

Tatiana Chizhova ◽

Yuliya Koudryashova ◽

Natalia Prokuda ◽

Pavel Tishchenko ◽

Kazuichi Hayakawa

Keyword(s):

Sea Of Japan ◽

Fossil Fuels ◽

River Estuary ◽

The Sea Of Japan ◽

Tumen River ◽

Transboundary River ◽

Run Off ◽

Saline Waters ◽

Polycyclic Aromatic ◽

A Minor

The seasonal polycyclic aromatic hydrocarbon (PAH) variability was studied in the estuaries of the Partizanskaya River and the Tumen River, the largest transboundary river of the Sea of Japan. The PAH levels were generally low over the year; however, the PAH concentrations increased according to one of two seasonal trends, which were either an increase in PAHs during the cold period, influenced by heating, or a PAH enrichment during the wet period due to higher run-off inputs. The major PAH source was the combustion of fossil fuels and biomass, but a minor input of petrogenic PAHs in some seasons was observed. Higher PAH concentrations were observed in fresh and brackish water compared to the saline waters in the Tumen River estuary, while the PAH concentrations in both types of water were similar in the Partizanskaya River estuary, suggesting different pathways of PAH input into the estuaries. The annual riverine PAH mass flux amounted to 0.028 t/year and 2.5 t/year for the Partizanskaya River and the Tumen River, respectively. The riverine PAH contribution to the coastal water of the Sea of Japan depends on the river discharge rather than the PAH level in the river water.

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