Seasonal and Spatial Comparison of Polycyclic Aromatic Hydrocarbons Among Decapod Shrimp from Coastal Portugal

Maria Luz Maia, Paula Paíga, Maria João Ramalhosa, Cristina Delerue-Matos, Conceição Calhau, Valentina Fernandes Domingues

Research output: Contribution to journalArticlepeer-review

Abstract

Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous global pollutants that are lipophilic, bioaccumulative and can be both endocrine disruptors and carcinogens. In this study, we measured 18 PAHs among decapod shrimp samples (Palaemon spp.) collected during the spring and autumn from multiple locations along the Portuguese coastal, including local markets and aquaculture farms. ΣPAH concentrations in samples ranged from 3.14 to 320.48 ng/g (ww) with the highest value in this range detected in a sample provided from an aquaculture facility. Fifteen of the 18 scanned PAHs were present in shrimp samples. However, detectable concentrations (0.07 ng/g ww) of the carcinogenic benzo-a-pyrene occurred for a single sample only and approached method detection limits. No significant differences in shrimp ΣPAH concentrations were evident between the spring and autumn seasons. Target hazard quotient estimation suggested low probability of adverse health effects to consumers through consumption of shrimp from the study collection locations.

Original languageEnglish
Pages (from-to)511-517
JournalBulletin Of Environmental Contamination And Toxicology
Volume109
Early online date2022
DOIs
Publication statusPublished - Jun 2022

Keywords

  • Aquatic environment
  • Atlantic Ocean
  • Coast pollution
  • Palaemon serratus
  • Palaemon varians
  • Polycyclic aromatic hydrocarbons

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