Chemical Composition and Toxicity of Water-Soluble Fractions of Oil Samples from the Extensive Spill in Northeast Brazil

Bull Environ Contam Toxicol. 2024 Dec 4;114(1):4. doi: 10.1007/s00128-024-03985-9.

Abstract

This study evaluated the effects of water-soluble fractions (WSF) of stranded oil sampled from the beaches of Trancoso and Massarandupió (Bahia, Brazil) following a mysterious oil spill along Brazil's northeast coast (2019-2020). The samples were characterized for aliphatic hydrocarbons (AHs) and polycyclic aromatic hydrocarbons (PAHs) and tested for chronic toxicity in the embryo-larval stages of the sea urchin Echinometra lucunter. The WSFs contained high levels of PAHs, some of which were above the acceptable levels for water in Brazil, and toxicity to sea urchin embryos tended to occur at higher concentrations.

Keywords: Hydrocarbons; Marine ecotoxicology; Marine pollution; Mysterious oil spill; Species sensitivity.

MeSH terms

  • Animals
  • Brazil
  • Environmental Monitoring*
  • Petroleum Pollution*
  • Petroleum* / toxicity
  • Polycyclic Aromatic Hydrocarbons* / analysis
  • Polycyclic Aromatic Hydrocarbons* / toxicity
  • Sea Urchins* / drug effects
  • Water Pollutants, Chemical* / analysis
  • Water Pollutants, Chemical* / toxicity

Substances

  • Water Pollutants, Chemical
  • Polycyclic Aromatic Hydrocarbons
  • Petroleum