Levels of PAHs, PCBs, and toxic metals inRuditapes philippinarumandDonax trunculusin Marmara Sea, Turkey


Künili İ. E. , Çolakoğlu S. , Çolakoğlu F.

JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE, vol.101, no.3, pp.1167-1173, 2021 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 101 Issue: 3
  • Publication Date: 2021
  • Doi Number: 10.1002/jsfa.10728
  • Title of Journal : JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
  • Page Numbers: pp.1167-1173
  • Keywords: Ruditapes philippinarum, Donax trunculus, dioxins, dioxin-like PCBs, PAHstoxic metals, POLYCYCLIC AROMATIC-HYDROCARBONS, DIBENZO-P-DIOXINS, CHAMELEA-GALLINA, HUMAN EXPOSURE, SEAFOOD, FISH, BIOACCUMULATION, SEDIMENTS, ECOSYSTEM, COAST

Abstract

BACKGROUND The manila clamRuditapes philippinarumand the wedge clamDonax trunculusare economic bivalve species which constitute an important part of the natural bivalve beds in the Marmara Sea, Turkey. Toxic chemicals such as, dioxins, dioxin-like polychlorinated biphenyls (PCBs), polycyclic hydrocarbons (PAHs), and toxic metals are recognized as important health risk factors that threaten public health via food or directly in the environment. In the present study, we aimed to determine and monitor levels of these toxic chemicals in both clam species,R. philippinarumandD. trunculus, between 2013 and 2017. RESULTS According to the results, maximum levels of dioxins, PAHs, and toxic metals (lead, cadmium, mercury) during the period were determined as 0.18 pg g(-1), 2.43 mg kg(-1), and 0.44-0.53-0.1 mg kg(-1), respectively. The level of contaminants in both clam species were determined to be below the threshold or tolerable daily intake values established by the European Commission, European Food Safety Authority (EFSA), and Food and Agriculture Organization/World Health Organization (FAO/WHO). Seasonal fluctuations were observed to be similar in both species and also in seasons, but elevated levels of PCBs and PAHs were detected in warmer months during the period. CONCLUSION As a consequence, toxic chemicals in both clam species were found at low concentrations in this study from the point of view of public health concerns; however, the contaminants should be closely monitored in the future due to their elevated levels in samples. (c) 2020 Society of Chemical Industry