Toxicity assays of marine sediments from western Venezuela

Refineries are one of the main sources of coastal marine pollution worldwide. In this study, the toxicity of sediments potentially impacted by the Paraguaná Refinery Complex on the west coast of Venezuela was evaluated using chronic toxicity assays. This toxicity was determined by exposing larvae of...

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Authors: Ramos, R, Bastidas, C, García, E
Format: article
Status:Published version
Publication Date:2012
Country:México
Institution:UNIVERSIDAD AUTÓNOMA DE BAJA CALIFORNIA
Repository:Ciencias Marinas
Language:English
OAI Identifier:oai:cienciasmarinas.com.mx:article/1939
Online Access:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1939
Access Level:Open access
Keyword:toxicity bioassays
hydrocarbons
metals
oil refinery.
Bioensayos de toxicidad
hidrocarburos
metales
refinería petrolera
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spelling Toxicity assays of marine sediments from western VenezuelaEnsayos de toxicidad con sedimentos marinos del occidente de VenezuelaRamos, RBastidas, CGarcía, Etoxicity bioassayshydrocarbonsmetalsoil refinery.Bioensayos de toxicidadhidrocarburosmetalesrefinería petroleraRefineries are one of the main sources of coastal marine pollution worldwide. In this study, the toxicity of sediments potentially impacted by the Paraguaná Refinery Complex on the west coast of Venezuela was evaluated using chronic toxicity assays. This toxicity was determined by exposing larvae of the shrimp Litopenaeus vannamei and the polychaete Scolelepis texana to bioassays during 28 and 10 days, respectively. Both bioassays indicated that the sediments surrounding the refinery are highly toxic, compared to sediments from the same region farther from the refinery and sediments from a control zone. The sediments surrounding the refinery had relatively high concentrations of total petroleum hydrocarbons (>10,000 ppm); of heavy metals such as chrome, nickel, and zinc; and of polycyclic aromatic hydrocarbons (ΣPAHs > 1000 ppb). This study forms part of the first environmental ecological risk assessment done in Venezuela. The high toxicity of the sediments close to one of the largest refinery complexes in the world should serve as a warning of the possible impacts on benthic and planktonic communities that live in the environs of refineries in coastal marine environments.La actividad de las refinerías es una de las principales fuentes de contaminación marinocostera a nivel mundial. En este trabajo se evaluó la toxicidad de sedimentos potencialmente impactados por el Centro Refinador Paraguaná, ubicado en la costa occidental de Venezuela, utilizando bioensayos de toxicidad crónicos. Dicha toxicidad se evaluó con larvas del camarón Litopenaeus vannamei y con poliquetos Scolelepis texana durante 28 días y 10 días, respectivamente. Ambos bioensayos indicaron una alta toxicidad para sedimentos aledaños a la refinería, con respecto a sedimentos de la misma región con menor influencia de la refinería y a sedimentos de una zona control. Los sedimentos aledaños a la refinería tuvieron concentraciones relativamente elevadas de hidrocarburos totales de petróleo (>10,000 ppm); de metales pesados como el cromo, níquel y zinc; y presencia de hidrocarburos policíclicos aromáticos (ΣPAHs > 1000 ppb). Este estudio está enmarcado dentro del primer trabajo de riesgo ecológico ambiental realizado en Venezuela. La elevada toxicidad de los sedimentos influenciados por uno de los complejos refinadores más grande del mundo puede servir como una señal de alarma de los posibles impactos sobre los organismos bentónicos y planctónicos que viven en los ambientes costeros marinos en las adyacencias de las refinerías.Iniversidad Autónoma de Baja California2012-01-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPeer-reviewed Article Artículo Arbitradoapplication/pdfhttps://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/193910.7773/cm.v38i1A.1939Ciencias Marinas; Vol. 38 No. 1A (2012); 119-127Ciencias Marinas; Vol. 38 Núm. 1A (2012); 119-1272395-90530185-3880reponame:Ciencias Marinasinstname:UNIVERSIDAD AUTÓNOMA DE BAJA CALIFORNIAinstacron:UABCenghttps://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1939/1689info:eu-repo/semantics/openAccessoai:cienciasmarinas.com.mx:article/19392024-08-22T17:01:40Z
dc.title.none.fl_str_mv Toxicity assays of marine sediments from western Venezuela
Ensayos de toxicidad con sedimentos marinos del occidente de Venezuela
title Toxicity assays of marine sediments from western Venezuela
spellingShingle Toxicity assays of marine sediments from western Venezuela
Ramos, R
toxicity bioassays
hydrocarbons
metals
oil refinery.
Bioensayos de toxicidad
hidrocarburos
metales
refinería petrolera
title_short Toxicity assays of marine sediments from western Venezuela
title_full Toxicity assays of marine sediments from western Venezuela
title_fullStr Toxicity assays of marine sediments from western Venezuela
title_full_unstemmed Toxicity assays of marine sediments from western Venezuela
title_sort Toxicity assays of marine sediments from western Venezuela
dc.creator.none.fl_str_mv Ramos, R
Bastidas, C
García, E
author Ramos, R
author_facet Ramos, R
Bastidas, C
García, E
author_role author
author2 Bastidas, C
García, E
author2_role author
author
dc.subject.none.fl_str_mv toxicity bioassays
hydrocarbons
metals
oil refinery.
Bioensayos de toxicidad
hidrocarburos
metales
refinería petrolera
topic toxicity bioassays
hydrocarbons
metals
oil refinery.
Bioensayos de toxicidad
hidrocarburos
metales
refinería petrolera
description Refineries are one of the main sources of coastal marine pollution worldwide. In this study, the toxicity of sediments potentially impacted by the Paraguaná Refinery Complex on the west coast of Venezuela was evaluated using chronic toxicity assays. This toxicity was determined by exposing larvae of the shrimp Litopenaeus vannamei and the polychaete Scolelepis texana to bioassays during 28 and 10 days, respectively. Both bioassays indicated that the sediments surrounding the refinery are highly toxic, compared to sediments from the same region farther from the refinery and sediments from a control zone. The sediments surrounding the refinery had relatively high concentrations of total petroleum hydrocarbons (>10,000 ppm); of heavy metals such as chrome, nickel, and zinc; and of polycyclic aromatic hydrocarbons (ΣPAHs > 1000 ppb). This study forms part of the first environmental ecological risk assessment done in Venezuela. The high toxicity of the sediments close to one of the largest refinery complexes in the world should serve as a warning of the possible impacts on benthic and planktonic communities that live in the environs of refineries in coastal marine environments.
publishDate 2012
dc.date.none.fl_str_mv 2012-01-10
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
Artículo Arbitrado
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1939
10.7773/cm.v38i1A.1939
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1939
identifier_str_mv 10.7773/cm.v38i1A.1939
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1939/1689
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Iniversidad Autónoma de Baja California
publisher.none.fl_str_mv Iniversidad Autónoma de Baja California
dc.source.none.fl_str_mv Ciencias Marinas; Vol. 38 No. 1A (2012); 119-127
Ciencias Marinas; Vol. 38 Núm. 1A (2012); 119-127
2395-9053
0185-3880
reponame:Ciencias Marinas
instname:UNIVERSIDAD AUTÓNOMA DE BAJA CALIFORNIA
instacron:UABC
instname_str UNIVERSIDAD AUTÓNOMA DE BAJA CALIFORNIA
instacron_str UABC
institution UABC
reponame_str Ciencias Marinas
collection Ciencias Marinas
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.638193

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