Effects of Dissolved Organic Carbon, Ultraviolet Light and their Co-Exposure on Deepwater Horizon crude oil acute toxicity to larval red drum (Sciaenops ocellatus)

Environ Toxicol Chem. 2020 Dec;39(12):2509-2515. doi: 10.1002/etc.4877. Epub 2020 Oct 26.

Abstract

In the aquatic environment, ubiquitous natural factors such as ultraviolet light (UV) and dissolved organic carbon (DOC) are likely to influence crude oil toxicity. The present study examined the interactive effects of DOC, UV, and DOC-UV co-exposure on the acute toxicity of Deepwater Horizon crude oil in larval red drum (Sciaenops ocellatus). Although DOC alone did not influence crude oil toxicity, it mildly reduced UV photo-enhanced toxicity. Environ Toxicol Chem 2020;39:2509-2515. © 2020 SETAC.

Keywords: Dissolved organic carbon; Gulf of Mexico; Oil spills; Photo-enhanced toxicity; Polycyclic aromatic hydrocarbons; Red drum.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Carbon / pharmacology*
  • Dose-Response Relationship, Radiation
  • Gulf of Mexico
  • Larva / drug effects
  • Larva / radiation effects
  • Organic Chemicals / pharmacology*
  • Perciformes / physiology*
  • Petroleum / toxicity
  • Petroleum Pollution / analysis*
  • Polycyclic Aromatic Hydrocarbons / toxicity
  • Toxicity Tests, Acute*
  • Ultraviolet Rays*
  • Water / chemistry
  • Water Pollutants, Chemical / toxicity

Substances

  • Organic Chemicals
  • Petroleum
  • Polycyclic Aromatic Hydrocarbons
  • Water Pollutants, Chemical
  • Water
  • Carbon