Origin of hydrocarbons in the particulate matter and bottom sediments of the northern shelf of the Caspian Sea

Nemirovskaya, I. A.; Brekhovskikh, V. F.

doi:10.1134/s0001437008010062

Cited by 12 publications

(6 citation statements)

References 10 publications

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“…[Nemirovskaya and Brekhovskikh, 2008], the AHC content in the bottom sediments was as low as 55.5 μg/g, their fraction within the OM composition was as high as 39.4%, which is usually observed in near-harbor aquatic areas. In the most recent samples of marine bottom sediments from unpolluted areas, the AHC content is only tenths or even hundredth parts of C org [Nemirovskaya, 2004].…”

Section: Resultsmentioning

confidence: 87%

“…The studies performed earlier in the coastal waters of the Caspian Sea showed that the sandy bottom sediments (2003, Fig. 1) had rather low concentrations of organic compounds and contained from 0.031 to 0.59% C org and from 19.8 [Nemirovskaya and Brekhovskikh, 2008]. A weak statistical correlation between the distribution of C org and AHC (r = 0.14) indicated different origins of these compounds.…”

Section: Introductionmentioning

confidence: 85%

“…Nevertheless, in the area studied, the AHC concentrations in coarse-grained sediments appeared to be higher than those in a fine-grained substance. [Nemirovskaya and Brekhovskikh, 2008]. Only in the sediments of the mouth area of the Severnaya Dvina River, during the spring flood and near oil storages, the fraction of AHC reached 74.5% of C org with the AHC content of 544 μg/g.…”

Section: Fig 2 Chromatogram Of the Alkanes In An Integrated Sample mentioning

confidence: 93%

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Distribution of Hydrocarbons in Particulate Matter and Bottom Sediments of the Volga Delta

Nemirovskaya¹

2010

Geogr. environ. sustain.

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Data are presented on the content and composition of hydrocarbons (aliphatic and polyaromatic) in the filtered particulate matter and in the surface layer of the bottom sediments of the Volga River and the northern shelf of the Caspian Sea. Because of transformation and precipitation of anthropogenic and natural compounds, the HC composition in particulate matter and bottom sediments undergoes changes caused by precipitation of particulate matter, varying temperatures, and mixing of fresh and saline waters. It appeared that the greatest accumulation of the HC proceeds in the region of avalanche sedimentation, and their content is independent of the grain-size type of the sediments. The anthropogenic HC (oil and pyrogenous) do not pass the marginal filter of the Volga River and do not enter the open part of the sea.

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Section: Resultsmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 85%

Section: Fig 2 Chromatogram Of the Alkanes In An Integrated Sample mentioning

confidence: 93%

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Distribution of Hydrocarbons in Particulate Matter and Bottom Sediments of the Volga Delta

Nemirovskaya¹

2010

Geogr. environ. sustain.

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“…Various carcinogenic persistent organic pollutants from the past are commonly detected in typical lake ecosystems in Europe and Asian. Organochlorine pesticides, polychlorinated biphenyls, and polycyclic aromatic hydrocarbons are the main persistent organic pollutants in water bodies (Javedankherad et al 2013), sediments (de Mora et al 2004;Boehm et al 2005;Nemirovskaya and Brekhovskikh 2008;Varnosfaderany et al 2015;Baniemam et al 2017), organisms (Rajaei et al 2011;Mashroofeh et al 2015), and the surrounding soils and atmosphere (Aliyeva et al 2012(Aliyeva et al , 2013Shahbazi et al 2012) of the Caspian Sea located between Europe and Asia, the World's largest lake.…”

Section: Persistent Organic Pollutants In Lake and Ocean Ecosystemsmentioning

confidence: 99%

Emerging Contaminants: Analysis, Aquatic Compartments and Water Pollution

Morin‐Crini¹,

Lichtfouse²,

Liu³

et al. 2021

Emerging Contaminants Vol. 1

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Over the past two decades, the presence of so-called emerging contaminants in various environmental compartments around the world, such as water, sediments, soils and atmosphere, and in a wide variety of consumer products has become a major concern for society, public health authorities, industry (namely food industry and water sector) and the agricultural sector. Some of these substances are endocrine disruptors and others are proven carcinogens and mutagens. In particular,

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“…Many studies have been conducted in recent years for source identification of PAHs in the southern coasts of Caspian Sea (Tolosa et al, 2004;Nemirovskaya et al, 2006;Nemirovskaya and Brekhovskikh ., 2008;Nemati Varnosfaderany et al, 2014;Nemati Varnosfaderany et al, 2015;Shirneshan et al, 2016a,b;Azimi et al, 2017). Results of most of these studies denote the petrogenic origin of PAHs in the southern coasts of the Caspian Sea.…”

Section: Introductionmentioning

confidence: 99%

Polycyclic aromatic hydrocarbon source fingerprints in the environmental samples of Anzali—South of Caspian Sea

Azimi

Bakhtiari

Tauler

2020

Environ Sci Pollut Res

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The major emission sources of polycyclic aromatic hydrocarbons (PAHs) in Anzali city, apportionment of these sources and transfer of PAHs through street dust and runoff to rivers and finally the Caspian Sea were studied. PAHs in environmental samples including street dust, runoff and river sediment samples as well as in major sources of hydrocarbons in urban area including vehicles exhaust, gasoline and diesel fuels, engine oils of automobiles and boats, asphalt and tire debris were extracted by Soxhlet and liquid-liquid extraction in solid and liquid phase and were analyzed by GC-MS. Significance of each source in PAHs emission in the area was identified by chemical fingerprinting. According to the spatial distribution of PAHs in receptor samples stations of street dust and runoff located in the center of the city with high traffic of vehicles had higher concentrations of PAHs than stations in the out bonds of the city. In the river sediment samples, the stations located in the port area had the highest concentrations of PAHs. Results of chemical fingerprinting showed that especially in street dust and runoff samples, the isometric patterns of PAHs were rather similar to those in the proposed major sources, showing that they may have been originated from them, especially from asphalt and tire.On the contrary, river sediment samples were confirmed to receive inputs from other unknown independent sources.

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Origin of hydrocarbons in the particulate matter and bottom sediments of the northern shelf of the Caspian Sea

Cited by 12 publications

References 10 publications

Distribution of Hydrocarbons in Particulate Matter and Bottom Sediments of the Volga Delta

Distribution of Hydrocarbons in Particulate Matter and Bottom Sediments of the Volga Delta

Emerging Contaminants: Analysis, Aquatic Compartments and Water Pollution

Polycyclic aromatic hydrocarbon source fingerprints in the environmental samples of Anzali—South of Caspian Sea

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