Polycyclic aromatic hydrocarbons in the snow cover of the northern city agglomeration

Kozhevnikov, A. Yu.; Falev, Danil I.; Sypalov, S. A.; Kozhevnikova, I. S.; Kosyakov, D. S.

doi:10.1038/s41598-021-98386-x

Cited by 15 publications

(2 citation statements)

References 35 publications

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“…Moreover, the removal from the water column of the heavier PAHs via vertical particle settling, particularly in the shallower coastal shelf seas might also contributed to the reduced net southerly outflow from the Arctic of heavier PAHs (relative to the lighter PAHs). To a lesser extent, the longer retention of more hydrophobic/heavier PAHs in melting snow/sea ice might be another possible explanation for their reduced net southerly outflow, although large parts of the Arctic Ocean are now dominated by single season ice (rather than multi‐year ice) (Kozhevnikov et al., 2021; Pawlak et al., 2021). The molecular weight‐dependent net transport of PAHs we observed was similar with those for PFASs, as a net southward transport for short‐chain PFAS, while a net northward transport for the PFASs with ≥8 perfluorinated carbon atoms (Joerss et al., 2020).…”

Section: Resultsmentioning

confidence: 99%

Presence, Sources and Transport of Polycyclic Aromatic Hydrocarbons in the Arctic Ocean

Zhang

Vojta

et al. 2023

Geophysical Research Letters

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Polycyclic aromatic hydrocarbons (PAHs) are continuously released from multiple sources and are prone to long‐range transport. Little is known regarding their presence, transport and fate in remote and deep oceans. Polyethylene passive samplers were hence deployed at deep moorings and surface seawater in the Fram Strait and Canadian Archipelago, as well as in air and surface water of the lower Great Lakes, a potential high‐emission region, to understand the transport of PAHs to the Arctic. Dissolved PAHs showed significantly higher concentrations in the lower Great Lakes than those in the high Arctic. Concentrations of dissolved PAHs (Σ19PAHs) ranged from 33 to 300 pg/L in the Fram Strait; the vertical profiles generally exhibited a decreasing trend toward deep waters, which was potentially influenced by hydrological and biogeochemical processes. PAHs were exported from the Arctic Ocean to the North Atlantic through the Fram Strait and the Davis Strait.

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Section: Resultsmentioning

confidence: 99%

Presence, Sources and Transport of Polycyclic Aromatic Hydrocarbons in the Arctic Ocean

Zhang

Vojta

et al. 2023

Geophysical Research Letters

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“…Among large Arctic rivers (Yenisei, Ob, Lena, Kolyma, Pechora) the Northern Dvina River takes a special place due to the presence of densely populated areas in its delta. The presence of the developed pulp and paper industry, shipbuilding factories, power generation plants, and large river/seaports leads to significant emissions of microplastics [20]. A recent study showed that the Northern Dvina River may be considered a major source of microplastic pollution of the White Sea [21], and therefore, the entire Arctic region.…”

Section: Introductionmentioning

confidence: 99%

Impact of Coastal Sediments of the Northern Dvina River on Microplastics Inputs to the White and Barents Seas

Belesov

Rezviy

Покрышкин

et al. 2022

JMSE

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The Northern Dvina River flowing into the White Sea may be one of the main sources of microplastic (MP) pollution in the Arctic region. The coastal sediments of the Northern Dvina River act as an intermediate link in the transport of microplastics to the areas of the White and Barents Seas. The µFT-IR and Py-GC/MS methods were used to determine that up to 200 particles or 120 mg of MP per kg could accumulate in the coastal sediments of the Northern Dvina River. Coastal sediments tend to accumulate ABS and PS plastic particles with a particle size of around 200 µm. The accumulated microplastics (218 particles or 117 mg per kg of sediment per year) are carried away by strong currents, especially during spring flooding, resulting in pollution of the Barents and White Seas. The obtained data play an important role in assessing the MP pollution of the Arctic region, especially the White and Barents Seas.

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Trace Metals and Polycyclic Aromatic Hydrocarbons in the Snow Cover of the City of Nizhnevartovsk (Western Siberia, Russia)

Московченко

Pozhitkov

Minkina

et al. 2022

Arch Environ Contam Toxicol

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The city of Nizhnevartovsk is one of the centers of oil production in Western Siberia (Russia). A survey of the contents of trace metals and metalloids (TMMs) and polycyclic aromatic hydrocarbons (PAHs) in the snow cover was conducted there. It was aimed to study insoluble particles in the snow where the predominant share of pollutants in urban areas is concentrated. In contrast to the background areas, the deposition of TMMs in Nizhnevartovsk increases by 1-2 orders of magnitude. The deposition of Co, V, Mn, and As increases by 50-93 times, and the deposition of W increases at most (by 184 times on average). Abrasion of spikes of winter tires, abrasion of metal parts of vehicles, and combustion of motor fuels cause the pollution with W, Co, and V respectively. The total content of 12 EPA PAHs in the particulate fraction of snow in the urban area averaged 148.2 ng l -1 , and the deposition rate was 17.0 µg/m 2 . In contrast to the background areas, the share of high molecular weight 5-6-ring PAHs signi cantly increases in the city, especially dibenzo(a,h)anthracene (DahA).The indicative ratios of PAHs showed that the snowpack composition was in uenced by both petrogenic and pyrogenic sources. The proportion of pyrogenic sources is the highest in the low-rise residential area due to fuel combustion to produce heat and burning of household waste. The impact of motor transport is also major and is manifested in the maximum pollution in areas of heavy tra c. No emissions of PAHs from oil spills from the nearby Samotlor oil eld have been identi ed. It is concluded that the hydrocarbon pollution of the atmosphere from the eld weakens during the winter period compared to the warm season. Application of the I geo index characterizes the majority of the studied samples as unpolluted, 24% of the observation sites are classi ed as moderately polluted, and one (4%), as highly polluted.

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Polycyclic aromatic hydrocarbons in the snow cover of the northern city agglomeration

Cited by 15 publications

References 35 publications

Presence, Sources and Transport of Polycyclic Aromatic Hydrocarbons in the Arctic Ocean

Presence, Sources and Transport of Polycyclic Aromatic Hydrocarbons in the Arctic Ocean

Impact of Coastal Sediments of the Northern Dvina River on Microplastics Inputs to the White and Barents Seas

Trace Metals and Polycyclic Aromatic Hydrocarbons in the Snow Cover of the City of Nizhnevartovsk (Western Siberia, Russia)

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