Heavy metals in coastal water systems. A case study from the northwestern Gulf of Thailand

Censi, P.; Spoto, Sebastiano Ettore; Saiano, Filippo; Sprovieri, Mario; Mazzola, S.; Nardone, G.; Geronimo, S. I. Di; Punturo, Rosalda; Ottonello, Dario

doi:10.1016/j.chemosphere.2005.11.008

Cited by 222 publications

(125 citation statements)

References 30 publications

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“…The Cu content of the sediments, known to be related to hull-cleaning activities (Schiff et al, 2004), in Rapallo Harbour was constant at the stations where recreational boats were permanently moored and increased notably during the tourist season at Station B, where small boats were mainly only moored during summer and autumn. The seasonal increase in boat activity coincided with a significantly higher sediment content of V in summer and autumn, as this metal is a typical hydrocarbon by-product (Censi et al, 2006).…”

Section: Discussionmentioning

confidence: 86%

Stressors affecting the macrobenthic community in Rapallo Harbour (Ligurian Sea, Italy)

Harriague¹,

Misic²,

Petrillo³

et al. 2007

Sci. Mar.

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SUMMARY: An annual survey was carried out in Rapallo Harbour (Ligurian Sea, NW Mediterranean) to study the main stressors affecting the macrobenthic communities. The harbour was characterised by a relevant organic enrichment (between 51.9 mg g -1 and 109.6 mg g -1 ), which did not affect the water column oxygenation, and low but detectable heavy-metal contamination (on average Cu=135.0 μg g -1 and V=23.8 μg g -1 ). The seasonal changes in the heavy metal concentrations suggested a significant increase in tourist activities (i.e. boat movements) during summer and autumn. In the inner, more protected sampling site, the harbour structures and the vessel movements increased both organic enrichment and sediment instability, resulting in macrobenthic communities dominated by indicator species associated with these stressors. In addition, during summer and autumn, despite a relevant chlorophyll-a flux to the sediment, the settling material was dominated by phaeopigments and refractory proteins, which reduced its trophic value for benthic consumers. In the outer part of the harbour the main stressor was a polluted freshwater inflow, as indicated by the dominance of indicator species such as Capitella spp. (on average 79.5%), Neanthes caudata, Malacoceros girardi and Diopatra neapolitana.

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Section: Discussionmentioning

confidence: 86%

Stressors affecting the macrobenthic community in Rapallo Harbour (Ligurian Sea, Italy)

Harriague¹,

Misic²,

Petrillo³

et al. 2007

Sci. Mar.

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“…The transformation could be partly attributed to material exchange due to the submergence in the WLFZ (Censi et al 2006;Qiao et al 2007;Ye et al 2011). …”

Section: Source Identificationmentioning

confidence: 99%

Assessing the heavy metal contamination of soils in the water-level fluctuation zone upstream and downstream of the Manwan Dam, Lancang River

et al. 2014

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Purpose The intersections of the terrestrial and aquatic systems (water-level fluctuation zones, WLFZs) suffer from the increasing pressure of hydroelectric construction and operation. Taking WLFZs upstream and downstream of Manwan Dam (first dam completed in Lancang River) as an example, the dam operation impacts on the heavy metals in soils in WLFZs were assessed. Materials and methods In December 2011, 117 soil samples were collected in the WLFZs and infralittoral reference zones (IRZs) with respect to heavy metal (Cd, Cr, Cu, Ni, Pb and Zn) and metalloid (As) concentrations. Their concentrations were determined with the application of inductively coupled plasma atomic absorption spectrometry, ICP-AES. Enrichment factor (EF), ecological risk index (RI) and principal component analysis (PCA) were employed for element contamination and ecological risk assessment and source identification, respectively. The multivariable statistic approaches, an analysis of variance (ANOVA) and a paired-samples T test were performed in the data analysis.Results and discussion Parts of element concentrations in the upstream were significantly higher than those in the downstream and significant differences existed between the WLFZs and IRZs. No significant difference was detected between the different water elevations in the WLFZs. Compared to the soil quality guidelines, As and Cd exceeded the standard in both the WLFZs and IRZs. In addition, the water-level fluctuation during the submergence increased the enrichment degree and risk level in the WLFZs. The sources of the studied elements could be divided into natural factors and anthropogenic inputs. In addition, the submergence changed the major contaminants in the upstream WLFZs. Conclusions The results verified that dam operation had an effect on the heavy metals in the soils in WLFZs. In addition, this study proposed a useful tool (modified enrichment factor) to assess the enrichment degree caused by the water-level fluctuation. Assessing the heavy metal contamination of soils in WLFZs could be an important first step to the rational management of the dam operation.

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“…The sensitivity of ICP-SFMS and the capability of separating the analyte signals from the interfering species, make it a powerful system for the direct multi-elemental determination of trace elements in diluted seawater at ng L À1 levels. [65][66][67][68] Field et al combined the SC-FAST (ESI) sample introduction system with their ICP-SFMS unit to reduce sample uptake and wash times and thus reduce cone deposition and increase sample throughput. 67 This sample introduction system consists of an inert loop on a six-port flow injection valve placed very close to the nebulizer.…”

Section: Biological and Environmental Samplesmentioning

confidence: 99%

Inductively coupled plasma- and glow discharge plasma-sector field mass spectrometry : Part II. Applications

Jakubowski

Prohaska

Vanhaecke

et al. 2011

J. Anal. At. Spectrom.

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Heavy metals in coastal water systems. A case study from the northwestern Gulf of Thailand

Cited by 222 publications

References 30 publications

Stressors affecting the macrobenthic community in Rapallo Harbour (Ligurian Sea, Italy)

Stressors affecting the macrobenthic community in Rapallo Harbour (Ligurian Sea, Italy)

Assessing the heavy metal contamination of soils in the water-level fluctuation zone upstream and downstream of the Manwan Dam, Lancang River

Inductively coupled plasma- and glow discharge plasma-sector field mass spectrometry : Part II. Applications

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