Seasonal variation and concentration of PAHs in Lake Balaton sediment : A study on molecular weight distribution and sources of pollution

Ruqayah Ali Grmasha*, Osamah J. Al-sareji, Mónika Meiczinger, Raed A. Al-Juboori, Csilla Stenger-Kovács, Edina Lengyel, Hasan Sh. Majdi, Rafid AlKhaddar, Salah Jasim Mohammed, Khalid S. Hashim

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

The temporal and spatial variations of 16 Polycyclic Aromatic Hydrocarbons (PAHs) were examined at multiple sites around Lake Balaton from February 2023 to January 2024. The results indicated that the concentrations of PAHs in sediment were high during the winter months, 448.35 to 619.77 ng/g dry weight, and low during the summer months, 257.21 to 465.49 ng/g dry weight. The concentration of high molecular weight PAHs (HMWPAHs), consisting of 5–6 rings, was greater than that of low molecular weight PAHs (LMWPAHs), which had 2–3 rings. The total incremental lifetime cancer risk (ILCR) for both dermal and ingestion pathways was high for both adults and children during the four seasons, with the highest records as the following: winter > spring > summer > autumn. The ecological effects of the 16 PAHs were negligible except for acenaphthylene (Acy) and fluorene (Fl), which displayed slightly higher concentrations during the autumn and spring, respectively.

Original languageEnglish
Article number116333
Number of pages12
JournalMarine Pollution Bulletin
Volume202
DOIs
Publication statusPublished - May 2024
MoE publication typeA1 Journal article-refereed

Keywords

  • Lake Balaton
  • Petrogenic sources
  • Polycyclic aromatic hydrocarbons
  • Pyrolytic sources
  • Sediments
  • Toxicity assessment

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