Seasonal variations in marine polycyclic aromatic hydrocarbons off Oki Island, Sea of Japan, during 2015–2019

Matsunaka, Tetsuya; Nagao, Seiya; Inoue, Mutsuo; Mundo, Rodrigo; Tanaka, Saki; Tang, Ning; Yoshida, Masa‐aki; Nishizaki, Masanori; Morita, Masaya; Takikawa, Tetsutaro; Suzuki, Nobuo; Ogiso, Satoshi; Hayakawa, Kazuichi

doi:10.1016/j.marpolbul.2022.113749

Cited by 6 publications

(3 citation statements)

References 37 publications

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“…Additionally, it is known that the areas of these stations are under the influence of the Tsushima Warm Current [70] flowing from the East China Sea and carrying continental shelf water polluted with PAHs. The main sources of PAHs in the water of the Tsushima Warm Current were determined to be combustion products [71]. Moreover, when considering individual five-six-ring PAHs, the samples of St. 37 contained the highest percentage contribution of BbF and BPe, which is the same pattern found for particulate PAHs in the water of the Tsushima Warm Current.…”

Section: Compositional Profilementioning

confidence: 53%

“…BaA/(BaA + Chr) was in the range of 0.28-0.31, which means a mixture of petrogenic and pyrogenic sources of PAHs. sources of PAHs in the water of the Tsushima Warm Current were determined to be combustion products [71]. Moreover, when considering individual five-six-ring PAHs, the samples of St. 37 contained the highest percentage contribution of BbF and BPe, which is the same pa ern found for particulate PAHs in the water of the Tsushima Warm Current.…”

Section: Pah Isomer Ratiomentioning

confidence: 65%

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Occurrence and Sources of Polycyclic Aromatic Hydrocarbons and Factors Influencing Their Accumulation in Surface Sediment of a Deep-Sea Depression, Namely, the Tatar Trough (Tatar Strait, the Sea of Japan)

Koudryashova,

Chizhova,

Zadorozhny

et al. 2023

Water

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The concentrations of 14 polycyclic aromatic hydrocarbons (PAHs) in the sediment of the Tatar Trough were studied. Despite the increase in PAH concentrations over recent decades, which is likely the result of the handling and transportation of fossil fuels, PAH levels and ecological risk were found to be low. The spatial pattern revealed that higher PAH concentrations were mainly in the deeper water sites, suggesting that trough slope failure transported the PAHs to the deeper part of the basin. There was no correlation between the PAHs and grain size or the PAHs and organic carbon that is related to the PAH input from a variety of sources and the heterogeneity of organic matter. The PAH composition, isomer ratio, and PCA identified two areas with different PAH sources. The most northern part of the Tatar Trough received petrogenic PAHs that are probably transported downslope from the northern Tatar Strait where fossil fuels are handled in some ports. Another trough part was polluted by the PAHs from the combustion of coal and biomass and the exhaust of marine vehicles. The minor presence of genes responsible for aerobic PAH destruction can be explained by the anaerobic degradation of PAHs or the spontaneous creation of favorable conditions that promote bacterial PAH oxidation.

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Section: Compositional Profilementioning

confidence: 53%

Section: Pah Isomer Ratiomentioning

confidence: 65%

Occurrence and Sources of Polycyclic Aromatic Hydrocarbons and Factors Influencing Their Accumulation in Surface Sediment of a Deep-Sea Depression, Namely, the Tatar Trough (Tatar Strait, the Sea of Japan)

Koudryashova,

Chizhova,

Zadorozhny

et al. 2023

Water

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“…Seasonal variations of PAH concentrations in water are also not consistent: higher PAH concentrations in warm season than in cold season (Deng et al, 2006 ; Matsunaka et al, 2022 ; Montuori et al, 2016 ; Qin et al, 2014 ), which is similar to this study; higher concentrations in cold season than in warm season (Guigue et al, 2014 ; Liu et al, 2016a , b ; Mzoughi & Chouba, 2011 ); no obvious differences between cold and warm seasons (Guigue et al, 2011 ; Kafilzadeh, 2015 ; Liu et al, 2016a , b ). In addition, it was also found that naph was the dominant in cold seasons, but the 3-ring PAHs were the dominant in warm seasons (Li et al, 2015a , b ).…”

Section: Resultsmentioning

confidence: 99%

Characterizing spatiotemporal variations of polycyclic aromatic hydrocarbons in Taihu Lake, China

Beek

Jin

et al. 2022

Environ Monit Assess

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In this study, we analyzed the concentration distributions of 20 polycyclic aromatic hydrocarbons (PAHs) in 41 water samples which were collected from the northern part of Taihu Lake during 4 field campaigns (201511, 201606, 201702 and 201709). The concentrations were determined with GC–MS, and their spatial and seasonal distribution characteristics were interpreted. The results show that 2-ring PAHs present considerably higher concentrations in warm seasons than cold seasons, but the concentrations of the other higher-ring PAHs are rather stable in warm and cold seasons. The distribution patterns of these PAHs might be mainly attributed to ambient temperature effects on the PAH solubility in the water body. Meanwhile, the spatial distributions of the PAH concentrations in cold seasons were rather various in the sampling area, while the distributions in the warm seasons were homogeneous. The different distributions could result from the water recharge from the Yangtze River during cold seasons, which diluted PAH concentrations in the northeastern part of the lake. Furthermore, via literature review on PAH concentrations in water body, PAHs are in a wide range of levels and their patterns are different among the studies, which should be more effected by local factors instead of general PAH properties. The results from this study also present special characteristics of PAHs in Taihu Lake, which exhibit more insight on PAHs existence in water bodies.

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Environmental processes and fate of PAHs at a shallow and enclosed bay: West Nanao Bay, Noto Peninsula, Japan

Mundo

Matsunaka

Iwai

et al. 2022

Marine Pollution Bulletin

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Seasonal variations in marine polycyclic aromatic hydrocarbons off Oki Island, Sea of Japan, during 2015–2019

Cited by 6 publications

References 37 publications

Occurrence and Sources of Polycyclic Aromatic Hydrocarbons and Factors Influencing Their Accumulation in Surface Sediment of a Deep-Sea Depression, Namely, the Tatar Trough (Tatar Strait, the Sea of Japan)

Occurrence and Sources of Polycyclic Aromatic Hydrocarbons and Factors Influencing Their Accumulation in Surface Sediment of a Deep-Sea Depression, Namely, the Tatar Trough (Tatar Strait, the Sea of Japan)

Characterizing spatiotemporal variations of polycyclic aromatic hydrocarbons in Taihu Lake, China

Environmental processes and fate of PAHs at a shallow and enclosed bay: West Nanao Bay, Noto Peninsula, Japan

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