Toxicity assays of marine sediments from western Venezuela
Fuente:
Redalyc · Ciencias Marinas
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...
Saved in:
| Published in: | Ciencias Marinas |
|---|---|
| Main Author: | |
| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidad Autónoma de Baja California
2012
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1878325299919192064 |
|---|---|
| author | R Ramos |
| author_facet | R Ramos |
| collection | Ciencias Marinas |
| container_title | Ciencias Marinas |
| contents | Toxicity assays of marine sediments from western Venezuela R Ramos C Bastidas E García Ciencias de la Tierra metals hydrocarbons oil refinery Toxicity bioassays 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 (EPAHs > 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. 2012 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48023242009 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.1A Vol.38 |
| ctrlnum | oai:cienciasmarinas.com.mx:article/1939 10.7773/cm.v38i1A.1939 |
| 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.
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. |
| format | Artículo científico |
| id | redalyc_48023242009 |
| institution | Redalyc Ciencias Marinas |
| language | en |
| publishDate | 2012 |
| publisher | Universidad Autónoma de Baja California |
| spelling | Toxicity assays of marine sediments from western Venezuela Ensayos de toxicidad con sedimentos marinos del occidente de Venezuela Ramos, R Bastidas, C García, E toxicity bioassays hydrocarbons metals oil refinery. Bioensayos de toxicidad hidrocarburos metales refinería petrolera 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. 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. Universidad Autónoma de Baja California, Instituto de Investigaciones Oceanológicas 2012-01-10 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado application/pdf https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/1939 10.7773/cm.v38i1A.1939 Ciencias Marinas; Vol. 38 No. 1A (2012); 119-127 Ciencias Marinas; Vol. 38 Núm. 1A (2012); 119-127 2395-9053 0185-3880 eng https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/1939/1689 ['Redalyc'] redalyc_48023242009 Toxicity assays of marine sediments from western Venezuela ['Toxicity assays of marine sediments from western Venezuela', 'R Ramos', 'Ciencias de la Tierra', 'metals', 'hydrocarbons', 'oil refinery', 'Toxicity bioassays', 'Toxicity assays of marine sediments from western Venezuela R Ramos C Bastidas E García Ciencias de la Tierra metals hydrocarbons oil refinery Toxicity bioassays 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 (EPAHs > 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. 2012 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48023242009 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.1A Vol.38'] ['R Ramos'] ['R Ramos'] ['Artículo científico'] ['2012'] ['Universidad Autónoma de Baja California'] ['en'] ['Ciencias de la Tierra', 'metals', 'hydrocarbons', 'oil refinery', 'Toxicity bioassays'] ['https://www.redalyc.org/articulo.oa?id=48023242009'] ['Toxicity assays of marine sediments from western Venezuela R Ramos C Bastidas E García Ciencias de la Tierra metals hydrocarbons oil refinery Toxicity bioassays 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 (EPAHs > 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. 2012 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48023242009 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.1A Vol.38'] |
| spellingShingle | Toxicity assays of marine sediments from western Venezuela R Ramos Ciencias de la Tierra metals hydrocarbons oil refinery Toxicity bioassays Toxicity assays of marine sediments from western Venezuela R Ramos C Bastidas E García Ciencias de la Tierra metals hydrocarbons oil refinery Toxicity bioassays 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 (EPAHs > 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. 2012 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48023242009 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.1A Vol.38 |
| title | Toxicity assays of marine sediments from western Venezuela |
| title_alt | Ensayos de toxicidad con sedimentos marinos del occidente de Venezuela |
| topic | Ciencias de la Tierra metals hydrocarbons oil refinery Toxicity bioassays |
| topic_facet | toxicity bioassays hydrocarbons metals oil refinery. Bioensayos de toxicidad hidrocarburos metales refinería petrolera |
| url | https://www.redalyc.org/articulo.oa?id=48023242009 https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/1939 |