New Data on the Concentrations of Polycyclic Aromatic Hydrocarbons in the Sediments in the Coastal Zone of Lake Baikal

Khalikov, I. S.; Makarenko, A. A.; Levshin, D. G.; Luk’yanova, N. N.; Yakhryushin, V. N.

doi:10.1134/s1070363221130107

Cited by 5 publications

(2 citation statements)

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“…The lowest concentrations were observed in sediments sampled in rural and remote areas and the highest concentrations were observed in sediments sampled in areas nearby the industrial enterprises and railways. The PAH compositions of littoral sediments reported by Batoev et al [27] and Khalikov et al [52,55,56] are similar (except for low NAP concentration) to those of LMW-rich littoral sediments obtained in the present study (Figures S7 and S8). The only observation made by other authors that is not consistent with the results of the present study is the absence of a correlation between the concentration of BaP and concentrations of fine particle fractions [26].…”

Section: Sediment-water Partitioning Of Pahssupporting

confidence: 87%

“…In the water of large tributaries, the concentrations of PHE and FLT varied from 1.5 ng/L to 40 ng/L and from 0.5 ng/L to 22 ng/L (Figure S2b and Figure S3a), respectively. Similar data were reported by Khalikov and Lukyanova [52]. The differences between data reported by different authors as well as the differences between data reported by the same author at different times may be due to water pollution from temporary sources.…”

Section: Pahs In Water Of Lake Baikal Tributariessupporting

confidence: 87%

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Composition, Concentration and Origin of Polycyclic Aromatic Hydrocarbons in Waters and Bottom Sediments of Lake Baikal and Its Tributaries

Semenov

Marinaite

Силаев

et al. 2023

Water

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The aim of this study was the systematization and generalization of data obtained by authors during the last decade and the comparison of these data with those obtained by other authors. Gas chromatography (GC-MS) was used for the determination of PAHs and the positive matrix factorization (PMF) model and principal component analysis (PCA) were used for source apportionment of PAHs. It was found that the total concentration of 16 priority PAHs in surface waters varied from 5 to 200 ng/L, whereas the concentration of 16 PAHs in bottom sediments varied from 50 to 700 ng/g. The 2–3-ring PAHs were dominant in water, whereas the 4–6-ring PAHs were dominant in sediments. That was due to PAHs fractionation in the soil–water system. The source apportionment results showed that the PAHs in both water and sediments mostly originated from the combustion of biomass and fossil fuels. In contrast to sediments, there was a PAH fraction in water that did not originate from a single source. The pollution of freshwater ecosystems manifested itself in the lack of correlation between values of octanol/water partitioning coefficients and sediment/water partitioning coefficients of PAHs.

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