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

Tatiana Chizhova, Yuliya Koudryashova, Natalia Prokuda, Pavel Tishchenko and Kazuichi Hayakawa
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Tatiana Chizhova: V.I.Il’ichev Pacific Oceanological Institute FEB RAS, 43 Baltiyskaya Str., Vladivostok 690041, Russia
Yuliya Koudryashova: V.I.Il’ichev Pacific Oceanological Institute FEB RAS, 43 Baltiyskaya Str., Vladivostok 690041, Russia
Natalia Prokuda: Institute of Chemistry FEB RAS, 159 Prospect 100-let Vladivostoku, Vladivostok 690022, Russia
Pavel Tishchenko: V.I.Il’ichev Pacific Oceanological Institute FEB RAS, 43 Baltiyskaya Str., Vladivostok 690041, Russia
Kazuichi Hayakawa: Institute of Nature and Environmental Technology, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan

IJERPH, 2020, vol. 17, issue 17, 1-18

Abstract: 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.

Keywords: estuarine PAH pollution; seasonal PAH variability; transboundary pollution; riverine PAH mass flux (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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