Cu, Pb AND Zn DISTRIBUTION IN NEARSHORE WATERS IN SAN JORGE BAY, NORTHERN CHILE

Salamanca, Marco; Camaño, Andrés; Jara, Bibiana; Rodríguez, Tatiana

doi:10.4067/s0717-65382000000200009

Cited by 11 publications

(9 citation statements)

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“…In addition, in October 31 of 2005, the Eider vessel underwent an accident, with the consequent oil spill between 'Las Petroleras' beach (23º36'S) and 'Balneario Municipal' of San Jorge Bay (23º40'S) (Garcia-Borboroglu et al 2008). Other studies have reported high concentrations of Cu, Pb and Zn in the water column and bivalve tissues in an area close to site CY, San Jorge Bay (Salamanca et al 2000(Salamanca et al , 2004. Therefore, it is probable that Labrisomus philippii have been exposed for long periods of time to hydrocarbons, and heavy metals, especially Cu and Cd.…”

Section: Discussionmentioning

confidence: 98%

“…Some studies have reported high concentrations of Cu, Pb and Zn in the water column and in the tissues of bivalves in sites within San Jorge Bay (Salamanca et al 2000(Salamanca et al , 2004. However, in this geographical area as well as along the Chilean coast, there are scarce studies evaluating pollution effects on the health of marine organisms (George-Nascimento et al 2000, Riveros et al 2002, Leonardi et al 2009a.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of somatic indexes, hematology and liver histopathology of the fish Labrisomus philippii from San Jorge Bay, northern Chile, as associated with environmental stress

Montenegro

González

2012

Rev. biol. mar. oceanogr.

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Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Evaluation of somatic indexes, hematology and liver histopathology of the fish Labrisomus philippii from San Jorge Bay, northern Chile, as associated with environmental stress

Montenegro

González

2012

Rev. biol. mar. oceanogr.

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“…Rather, studies tend to focus on oceanographic topics like temperature pattern variability and seasonal growth of marine copepods (Escribano et al 1995), phytoplankton ecology (Rodriguez and Escribano 1996), physical-biological interactions (Escribano et al 2002), surface circulation (Escribano et al 2004), plankton behavior (Castilla et al 2002), and Cu, Pb, and Zn distributions in near-shore waters (Salamanca et al 2000).…”

Section: Introductionmentioning

confidence: 99%

“…The problem is that heavy metals also have natural sources that reach the coastal zone through the same biogeochemical pathways as the anthropogenic sources. The combination of these factors complicates the understanding of heavy metal spatial and temporal distribution patterns (Salamanca et al 2000).…”

Section: Introductionmentioning

confidence: 99%

Distribution and temporal variation of trace metal enrichment in surface sediments of San Jorge Bay, Chile

Valdés

Román

Guíñez

et al. 2009

Environ Monit Assess

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Cu, Pb, and Hg concentrations were determined in surface sediment samples collected at three sites in San Jorge Bay, northern Chile. This study aims to evaluate differences in their spatial distribution and temporal variability. The highest metal concentrations were found at the site "Puerto", where minerals (Cu and Pb) have been loaded for more than 60 years. On the other hand, Hg does not pose a contamination problem in this bay. Cu and Pb concentrations showed significant variations from 1 year to another. These variations seem to be a consequence of the combination of several factors, including changes in the loading and/or storage of minerals in San Jorge Bay, the dredging of bottom sediments (especially at Puerto), and seasonal changes in physical-chemical properties of the water column that modify the exchange of metals at the sediment-water interface. Differences in the contamination factor and geoaccumulation index suggest that pre-industrial concentrations measured in marine sediments of this geographical zone, were better than geological values (average shale, continental crust average) for evaluating the degree of contamination in this coastal system. Based on these last two indexes, San Jorge Bay has a serious problem of Cu and Pb pollution at the three sampling locations. However, only Cu exceeds the national maximum values used to evaluate ecological risk and the health of marine environments. It is suggested that Chilean environmental legislation for marine sediment quality--presently under technical discussion--is not an efficient tool for protecting the marine ecosystem.

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“…Storage facilities have long been rudimentary and precarious, which, together with the prevailing weather conditions and wind in this area, has led to the dispersion of the stacked metals (Valdés et al 2010). The high Pb concentrations recorded at the Historic District site are probably due to the combined action of the wind, port activities (Salamanca et al 2000), the presence of fuel terminals, and the effluent from the discharge of secondary water from the household sewage of the city of Antofagasta into San Jorge bay (Valdés et al 2011). Like Antofagasta, Concepción (in the south of Chile) has a very active port, and studies by Muñoz (2002) recorded a large amount of atmospheric lead present in the bay's marine sediments due to the high anthropic activity.…”

Section: Heavy Metal Analysismentioning

confidence: 99%

Trace metal and biomarker levels in tissues ofArgopecten purpuratusin the north of Chile, and the potential use of this species as a bioindicator of metallic stress

Zapata

Lang

Riso

et al. 2012

Aquat. Living Resour.

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Trace metal and biomarker levels in tissues of Argopecten purpuratus in the north of Chile, and the potential use of this species as a bioindicator of metallic stress Abstract -The capacity to bioaccumulate trace metals present in San Jorge Bay, Antofagasta, Chile, was determined in northern scallop, Argopecten purpuratus, to examine the value of this important commercially species as a bioindicator of heavy metal pollution in areas where it is cultured. Scallops were sampled in summer 2009 in four sites: three natural populations (Coloso, Historic District and La Rinconada, marine reserve), and a commercial hatchery (Colorado). The concentrations of three heavy metals (copper, cadmium and lead) were then determined through stripping chronopotentiometric methods, and the levels of four biomarkers: three genes implicated in the stress and oxidative metabolism, i.e., glutathione peroxidase (GPx), glutathione s-transferase (GST) and heat shock protein 70 (HSP70), and a protein marker in the digestive gland and gill, a metallothionein (MT). The Historic District, located in the downtown area of the city, showed the highest metal concentration of all the sampled sites, as well as the highest levels of the four biomarkers. This can be largely attributed to the nearby international port area of the town and high sea traffic flow, exacerbated by the prevailing winds.

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Cu, Pb AND Zn DISTRIBUTION IN NEARSHORE WATERS IN SAN JORGE BAY, NORTHERN CHILE

Cited by 11 publications

References 0 publications

Evaluation of somatic indexes, hematology and liver histopathology of the fish Labrisomus philippii from San Jorge Bay, northern Chile, as associated with environmental stress

Evaluation of somatic indexes, hematology and liver histopathology of the fish Labrisomus philippii from San Jorge Bay, northern Chile, as associated with environmental stress

Distribution and temporal variation of trace metal enrichment in surface sediments of San Jorge Bay, Chile

Trace metal and biomarker levels in tissues ofArgopecten purpuratusin the north of Chile, and the potential use of this species as a bioindicator of metallic stress

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