Source of heavy metals in sediments of the Port Jackson estuary, Australia

Birch, G.F.; Taylor, S. E.

doi:10.1016/s0048-9697(99)00007-8

Cited by 214 publications

(90 citation statements)

References 33 publications

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“…Due to their geomorphological and physicochemical properties, lagoons and estuaries are potential deposit areas for anthropogenic sediments, and the number of studies dealing with these subjects is increasing rapidly (JONES; TURKI, 1997;BIRCH;TAYLOR, 1999;CEARRETA et al, 2000CEARRETA et al, , 2002CUNDY et al, 2003;ELBERLING et al, 2003;PASTERNACK;BROWN, 2006;DONDERS et al, 2008;LEORRI et al, 2008). An important approach to the subject is related to the sedimentary record of this anthropogenic influence, which incorporates high resolution geochronology with proxies of different types so as to provide a reliable documentation of the contamination history of a given area (ALVE, 1991(ALVE, , 1995PLATER et al, 1998;APPEBY, 2004;LI et al, 2000;CHAN et al, 2001;CEARRETA et al, 2002;RUIZ-FERNÁNDEZ et al, 2007, among others).…”

Section: Introductionmentioning

confidence: 99%

Anthropogenic influences in a lagoonal environment: a multiproxy approach at the valo grande mouth, Cananéia-Iguape system (SE Brazil)

et al. 2009

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A B S T R A C TThe Cananéia-Iguape system, SE Brazil, consists of a complex of lagoonal channels, located in a United Nations Educational, Scientific and Cultural Organization (UNESCO) Biosphere Reserve. Nevertheless, important environmental changes have occurred in approximately the last 150 yrs due to the opening of an artificial channel, the Valo Grande, connecting the Ribeira de Iguape River to the lagoonal system. Our objective is to assess the historical record of the uppermost layers of the sedimentary column of the lagoonal system in order to determine the history of environmental changes caused by the opening of the artificial channel. In this sense, an integrated geochemicalfaunal approach is used. The environmental changes led significant modifications in salinity, in changes of the depositional patterns of sediments and foraminiferal assemblages (including periods of defaunation), and, more drastically, in the input of heavy metals to the coastal environment. The concentrations Pb in the core analyzed here were up to two times higher than the values measured in contaminated sediments from the Santos estuary, the most industrialized coastal zone in Brazil. R E S U M OO sistema Cananéia-Iguape (Sudeste do Brasil), consiste em um complexo de canais lagunares localizados no interior de uma Reserva da Biosfera (assim definida pela UNESCO). Não obstante, variações ambientais importantes ocorreram nos últimos 150 anos, devido à abertura de um canal artificial, o Valo Grande, conectando o Rio Ribeira de Iguape ao sistema lagunar. O objetivo deste trabalho foi determinar a história das variações ambientais no sistema lagunar, causadas pela abertura do canal artificial, através da análise das camadas superiores da coluna sedimentar de um testemunho coletado no sistema. Neste sentido, uma abordagem integrada, envolvendo variações geoquímicas e faunísticas foi utilizada. As variações ambientais ocorridas apontam para mudanças drásticas na salinidade, nos padrões de sedimentação, nas associações de foraminíferos (incluindo períodos azóicos) e, mais drasticamente, no aporte de metais para o sistema costeiro. As concentrações de Pb no testemunho coletado indicam valores duas vezes maiores do que os medidos em sedimentos contaminados do estuário de Santos, situado na zona costeira mais industrializada do Brasil.

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Section: Introductionmentioning

confidence: 99%

Anthropogenic influences in a lagoonal environment: a multiproxy approach at the valo grande mouth, Cananéia-Iguape system (SE Brazil)

et al. 2009

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“…Stormwater is a largely uncontrolled and unregulated source of contamination that has been implicated in the deterioration of water quality in freshwater (Lieb and Carline, 2000) and marine systems and in the ongoing degradation of benthic marine habitats where contaminants may accumulate (Birch andTaylor, 1999, Carr et al, 2000). This complex effluent may contain many toxic contaminants including heavy metals, polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and pesticides (Makepeace et al, 1995).…”

Section: Introductionmentioning

confidence: 99%

MBACI sampling of an episodic disturbance: Stormwater effects on algal epifauna

Roberts

Poore

Johnston

2007

Marine Environmental Research

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“…Trace metals can enter into human bodies via the food chain, inhalation or dermal absorption, and may lead to critical health disorders that affect the nervous system, endocrine system and/or the immune system (Romero et al 2013;Zhao et al 2014). The trace metal concentrations that were measured in Kogarah Bay were compared with the concentrations of trace metals from marine sediments (Table 4) in previous Australian studies (Birch and Taylor 1999;Jones et al 2003) and around the world (Hamer and Karius 2002;Pekey 2006). The Huon estuary is essentially a nonindustrialised zone and might contain a low level of potentially toxic trace metals.…”

Section: Fig 4 Variation Of Trace Metals With Sediment Depth (Cm) Inmentioning

confidence: 99%

Source identification and assessment of sediment contamination of trace metals in Kogarah Bay, NSW, Australia

Alyazichi

Jones

McLean

2015

Environ Monit Assess

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The distribution of trace metals (spatial and temporal) and sedimentary fractions were investigated to identify the concentrations and sources of trace metals within Kogarah Bay, NSW, Australia. A total of 59 surface sediments and six subsurface samples from core of the sediment were collected. The contamination factor and pollution load index indices used to evaluate environmental effects of trace metals. The study area was found to be uncontaminated with Cr and Ni, moderately contaminated with As and considerably contaminated with Cu, Zn and Pb. The concentrations of Cr and Ni were below both effect range low and effect range median, while As, Cu, Zn and Pb were slightly above effect range low. The highest concentrations of these trace metals such as Cu, Zn and Pb were found in the north, northwest and southeast of the bay, close to discharge points, stormwater outlets and around boatyards and watercrafts. The spatial distributions of metals were strongly related to muddy particles and organic matter. The temporal sediments of metals declined with increased sediment depth, which reflects accumulation of trace metals since European settlement in this area. Furthermore, the source of the trace metals was found to be stormwater outlets, gasoline fumes, boatyards and other human activities. AbstractThe distribution of trace metals (spatial and temporal) and sedimentary fractions were investigated to identify the concentrations and sources of trace metals within Kogarah Bay, NSW, Australia. A total of 59 surface sediments and six subsurface samples from core of the sediment were collected. The contamination factor and pollution load index indices used to evaluate environmental effects of trace metals. The study area was found to be uncontaminated with Cr and Ni, moderately contaminated with As and considerably contaminated with Cu, Zn and Pb. The concentrations of Cr and Ni were below both Effect Range Low and Effect Range Median, while As, Cu, Zn and Pb were slightly above Effect Range Low. The highest concentrations of these trace metals such as Cu, Zn and Pb were found in the north, north west and south east of the bay, close to discharge points, stormwater outlets and around boatyards and watercrafts. The spatial distributions of metals were strongly related to muddy particles and organic matter. The temporal sediments of metals declined with increased sediment depth, which reflects accumulation of trace metals since European settlement in this area. Furthermore, the source of the trace metals was found to be stormwater outlets, gasoline fumes, boatyards and other human activities.

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Source of heavy metals in sediments of the Port Jackson estuary, Australia

Cited by 214 publications

References 33 publications

Anthropogenic influences in a lagoonal environment: a multiproxy approach at the valo grande mouth, Cananéia-Iguape system (SE Brazil)

Anthropogenic influences in a lagoonal environment: a multiproxy approach at the valo grande mouth, Cananéia-Iguape system (SE Brazil)

MBACI sampling of an episodic disturbance: Stormwater effects on algal epifauna

Source identification and assessment of sediment contamination of trace metals in Kogarah Bay, NSW, Australia

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