Levels and spatial distribution of polycyclic aromatic hydrocarbons (PAHs) in sediments from Lenga Estuary, central Chile

Karla Pozo; Guido Perra; Valentina Menchi; Roberto Urrutia; Oscar Parra; Anny Rudolph; Silvano Focardi

doi:10.1016/j.marpolbul.2011.04.037

Levels and spatial distribution of polycyclic aromatic hydrocarbons (PAHs) in sediments from Lenga Estuary, central Chile

Karla Pozo^*, Guido Perra, Valentina Menchi, Roberto Urrutia, Oscar Parra, Anny Rudolph, Silvano Focardi

^*Autor correspondiente de este trabajo

Producción científica: Contribución a una revista › Artículo › revisión exhaustiva

75 Citas (Scopus)

Resumen

The Lenga Estuary is a small brackish wetland located southwest of San Vicente Bay, Region VIII, Chile. Surface sediment from nine sites in the estuary were analysed for PAHs and compared to Sediment Quality Guidelines (SQG). Sediment samples were freeze dried and soxhlet extracted for 16h using DCM. Identification and quantification was carried out by HPLC. Organic carbon was also determined. Results showed total PAH concentrations ranged from 290 to 6118 (2025±1975)ngg^-1 d.w. (2025±1975). Results for organic carbon percentages ranged from 1% to 7%. Statistical analysis showed a significant positive correlation (Pearson test) between organic carbon percentage PAHs. Comparison of contaminant levels and international Sediment Quality Guidelines (SQG) (ERL and ER) suggested that sediment of the Lenga estuary did not show any ecotoxicologial risk for benthic organisms where high levels of PAHs were detected. Monitoring of this and other contaminants is recommended in Chile.

Idioma original	Inglés
Páginas (desde-hasta)	1572-1576
Número de páginas	5
Publicación	Marine Pollution Bulletin
Volumen	62
N.º	7
DOI	https://doi.org/10.1016/j.marpolbul.2011.04.037
Estado	Publicada - 2011
Publicado de forma externa	Sí

Áreas temáticas de ASJC Scopus

Oceanografía
Ciencias acuáticas
Contaminación

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10.1016/j.marpolbul.2011.04.037

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title = "Levels and spatial distribution of polycyclic aromatic hydrocarbons (PAHs) in sediments from Lenga Estuary, central Chile",

abstract = "The Lenga Estuary is a small brackish wetland located southwest of San Vicente Bay, Region VIII, Chile. Surface sediment from nine sites in the estuary were analysed for PAHs and compared to Sediment Quality Guidelines (SQG). Sediment samples were freeze dried and soxhlet extracted for 16h using DCM. Identification and quantification was carried out by HPLC. Organic carbon was also determined. Results showed total PAH concentrations ranged from 290 to 6118 (2025±1975)ngg-1 d.w. (2025±1975). Results for organic carbon percentages ranged from 1% to 7%. Statistical analysis showed a significant positive correlation (Pearson test) between organic carbon percentage PAHs. Comparison of contaminant levels and international Sediment Quality Guidelines (SQG) (ERL and ER) suggested that sediment of the Lenga estuary did not show any ecotoxicologial risk for benthic organisms where high levels of PAHs were detected. Monitoring of this and other contaminants is recommended in Chile.",

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author = "Karla Pozo and Guido Perra and Valentina Menchi and Roberto Urrutia and Oscar Parra and Anny Rudolph and Silvano Focardi",

note = "Funding Information: This work was supported by the international collaboration agreement between Siena University and Concepci{\'o}n University, which permits the academic interchanges and to conduct research in the Biob{\'i}o and Patagonia Regions in Chile. We also want to thank UNESCO-EOLSS Chair in Natural Resource Management, Land Planning and Environmental Protection and to project Fondecyt N°1070508 and N°1080294 for their partial support. ",

year = "2011",

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doi = "10.1016/j.marpolbul.2011.04.037",

language = "English",

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T1 - Levels and spatial distribution of polycyclic aromatic hydrocarbons (PAHs) in sediments from Lenga Estuary, central Chile

AU - Pozo, Karla

AU - Perra, Guido

AU - Menchi, Valentina

AU - Urrutia, Roberto

AU - Parra, Oscar

AU - Rudolph, Anny

AU - Focardi, Silvano

N1 - Funding Information: This work was supported by the international collaboration agreement between Siena University and Concepción University, which permits the academic interchanges and to conduct research in the Biobío and Patagonia Regions in Chile. We also want to thank UNESCO-EOLSS Chair in Natural Resource Management, Land Planning and Environmental Protection and to project Fondecyt N°1070508 and N°1080294 for their partial support.

PY - 2011/7

Y1 - 2011/7

N2 - The Lenga Estuary is a small brackish wetland located southwest of San Vicente Bay, Region VIII, Chile. Surface sediment from nine sites in the estuary were analysed for PAHs and compared to Sediment Quality Guidelines (SQG). Sediment samples were freeze dried and soxhlet extracted for 16h using DCM. Identification and quantification was carried out by HPLC. Organic carbon was also determined. Results showed total PAH concentrations ranged from 290 to 6118 (2025±1975)ngg-1 d.w. (2025±1975). Results for organic carbon percentages ranged from 1% to 7%. Statistical analysis showed a significant positive correlation (Pearson test) between organic carbon percentage PAHs. Comparison of contaminant levels and international Sediment Quality Guidelines (SQG) (ERL and ER) suggested that sediment of the Lenga estuary did not show any ecotoxicologial risk for benthic organisms where high levels of PAHs were detected. Monitoring of this and other contaminants is recommended in Chile.

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Levels and spatial distribution of polycyclic aromatic hydrocarbons (PAHs) in sediments from Lenga Estuary, central Chile

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