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

被引:7
作者
Chizhova, Tatiana [1 ]
Koudryashova, Yuliya [1 ]
Prokuda, Natalia [2 ]
Tishchenko, Pavel [1 ]
Hayakawa, Kazuichi [3 ]
机构
[1] VI Ilichev Pacific Oceanol Inst FEB RAS, 43 Baltiyskaya Str, Vladivostok 690041, Russia
[2] Inst Chem FEB RAS, 159 Prospect 100 Let Vladivostoku, Vladivostok 690022, Russia
[3] Kanazawa Univ, Inst Nat & Environm Technol, Kanazawa, Ishikawa 9201192, Japan
关键词
estuarine PAH pollution; seasonal PAH variability; transboundary pollution; riverine PAH mass flux; SURFACE-WATER; MEDITERRANEAN SEA; RAZDOLNAYA RIVER; TRACE-METALS; PAHS; CONTAMINATION; NORTHEAST; DYNAMICS; IMPACT; CHINA;
D O I
10.3390/ijerph17176019
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
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.
引用
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页码:1 / 18
页数:18
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