Evaluation of toxic metals in different grain size fractions of sediments of the southeastern Black Sea

ÖZŞEKER K., ERÜZ C., TERZİ Y.

MARINE POLLUTION BULLETIN, vol.182, 2022 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 182
  • Publication Date: 2022
  • Doi Number: 10.1016/j.marpolbul.2022.113959
  • Journal Name: MARINE POLLUTION BULLETIN
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, PASCAL, Aerospace Database, Aquatic Science & Fisheries Abstracts (ASFA), Artic & Antarctic Regions, BIOSIS, CAB Abstracts, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, EMBASE, Environment Index, Geobase, MEDLINE, Metadex, Pollution Abstracts, Veterinary Science Database, Civil Engineering Abstracts
  • Keywords: Pollution, Toxic metal, Black Sea, Sediment fraction, Ecological risk, HEAVY-METALS, SURFACE SEDIMENTS, TRACE-ELEMENTS, BAY SEDIMENTS, COPPER MINE, POLLUTION, CONTAMINATION, CHINA, RISK, ACCUMULATION
  • Karadeniz Technical University Affiliated: Yes

Abstract

Surficial marine sediment samples were collected along the southeastern Black Sea (Trabzon) coast. The sam-pling was conducted in June 2019 from eleven stations, with the depths varying between 8 and 30 m. Metal concentrations (Cu, Pb, Zn, Ni, As, and Cr) were evaluated in four different sediment size fractions; 0.063 mm (F1), 0.125 mm (F2), 0.25 mm (F3), and 0.5 mm (F4). Geoaccumulation Index (IGEO), Sediment Enrichment Factor (SEF), Ecological Risk (Er), and Potential Ecological Risk Index (RI) were used to determine potential anthropogenic hotspots. Temperature, pH, salinity, dissolved oxygen, and total organic carbon were determined to assess the variation across the sampling area. The highest metal concentrations (Cu:113.4 +/- 45.1; Pb:85.9 +/- 28.9; Zn: 138.6 +/- 18.8; Ni:37.8 +/- 7.6; As:14.1 +/- 3.6; and Cr: 29.9 +/- 5.4 ppm) were obtained in the smallest sediment fraction 0.063 mm (F1). The fractions of sediment structure were polluted by Cu, Pb, and As from moderate and severe levels according to IGEO and SEF.