Influence of dispersant application on the toxicity to sea urchin embryos of crude and bunker oils representative of prospective oil spill threats in Arctic and Sub-Arctic seas.
Dispersant
Iced seas
Mixtures
Oil
Sea urchin embryo
Toxicity
Journal
Marine pollution bulletin
ISSN: 1879-3363
Titre abrégé: Mar Pollut Bull
Pays: England
ID NLM: 0260231
Informations de publication
Date de publication:
Nov 2021
Nov 2021
Historique:
received:
22
01
2021
revised:
26
08
2021
accepted:
28
08
2021
pubmed:
16
9
2021
medline:
28
10
2021
entrez:
15
9
2021
Statut:
ppublish
Résumé
This study deals with the toxicity assessment of crude and bunker oils representative of prospective oil spill threats in Arctic and Sub-Arctic seas (NNA: Naphthenic North-Atlantic crude oil; MGO: Marine Gas Oil; IFO: Intermediate Fuel Oil 180), alone or in combination with a third-generation dispersant (Finasol OSR52®). Early life stages of sea urchin, Paracentrotus lividus, were selected for toxicity testing of oil low-energy water accommodated fractions. A multi-index approach, including larval size increase and malformation, and developmental disruption as endpoints, was sensitive to discriminate from slight to severe toxicity caused by the tested aqueous fractions. IFO (heavy bunker oil) was more toxic than NNA (light crude oil), with MGO (light bunker oil) in between. The dispersant was toxic and further on it enhanced oil toxicity. Toxic units revealed that identified PAHs were not the main cause for toxicity, most likely exerted by individual or combined toxic action of non-measured compounds.
Identifiants
pubmed: 34523425
pii: S0025-326X(21)00956-5
doi: 10.1016/j.marpolbul.2021.112922
pii:
doi:
Substances chimiques
Oils
0
Petroleum
0
Water Pollutants, Chemical
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
112922Informations de copyright
Copyright © 2021 The Authors. Published by Elsevier Ltd.. All rights reserved.