Distribution of arsenic compounds in Mytilus galloprovincialis of the Venice lagoon (Italy)

Argese, Emanuele; Bettiol, Cinzia; Rigo, Chiarafrancesca; Bertini, S.; Colomban, S.; Ghetti, Pier Francesco

doi:10.1016/j.scitotenv.2004.12.071

Cited by 31 publications

(12 citation statements)

References 18 publications

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“…In fact, diet is the main source of non-occupational exposure to arsenic (Vimercati et al 2009). Foods with the highest content of arsenic include some marine organisms, such as shellfish and crustaceans (Argese et al 2005; Fattorini et al 2004; Lopez et al 1994; WHO 2001). However, some authors did not find a positive association between the consumption of seafood and/or shellfish and the urinary concentrations of As.…”

Section: Discussionmentioning

confidence: 99%

Environmental exposure to arsenic and chromium in an industrial area

Vimercati

Gatti

Gagliardi

et al. 2017

Environ Sci Pollut Res

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Arsenic and chromium are widespread environmental contaminants that affect global health due to their toxicity and carcinogenicity. To date, few studies have investigated exposure to arsenic and chromium in a population residing in a high-risk environmental area. The aim of this study is to evaluate the exposure to arsenic and chromium in the general population with no occupational exposure to these metals, resident in the industrial area of Taranto, Southern Italy, through biological monitoring techniques. We measured the levels of chromium, inorganic arsenic, and methylated metabolites, in the urine samples of 279 subjects residing in Taranto and neighboring areas. Qualified health staff administered a standardized structured questionnaire investigating lifestyle habits and controlling for confounding factors. The biological monitoring data showed high urinary concentrations of both the heavy metals investigated, particularly Cr. On this basis, it will be necessary to carry out an organized environmental monitoring program, taking into consideration all exposure routes so as to correlate the environmental concentrations of these metals with the biomonitoring results.

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Section: Discussionmentioning

confidence: 99%

Environmental exposure to arsenic and chromium in an industrial area

Vimercati

Gatti

Gagliardi

et al. 2017

Environ Sci Pollut Res

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“…The spectrum of arsenic concentrations in natural waters ranges from 0.5 to 5,000 μg L −1 (about 6.7×10 −9 to 6.7× 10 −5 M; Smedley and Kinniburgh 2002). Arsenic species comprise arsenate, arsenite, monomethylarsonic acid (MMAA), dimethylarsinic acid (DMAA), and other complex arseno-compounds such as arsenobetaine, arsenocholine and arsenosugars (Yukiko et al 1996;Argese et al 2005). Inorganic arsenic species can have a significant effect on the structure or physiology of phytoplankton communities (Knauer et al 1999).…”

Section: Introductionmentioning

confidence: 99%

Effects of arsenate on the growth and microcystin production of Microcystis aeruginosa isolated from Taiwan as influenced by extracellular phosphate

Gong

Chou

et al. 2008

J Appl Phycol

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Arsenic pollution and eutrophication are both prominent issues in the aquaculture ponds of Taiwan. It is important to study the effects of arsenic on algal growth and toxin production in order to assess the ecological risk of arsenic pollution, or at least to understand naturally occurring ponds. The sensitivity of algae to arsenate has often been linked to the structural similarities between arsenate and phosphate. Thus, in this study we examined the effects of arsenate (10 −8 to 10 −4 M) on Microcystis aeruginosa TY-1 isolated from Taiwan, under two phosphate regimes. The present study showed that M. aeruginosa TY-1 was arsenate tolerant up to 10 −4 M, and that this tolerance was not affected by extracellular phosphate. However, it seems that extracellular phosphate contributed to microcystin production and leakage by M. aeruginosa in response to arsenate.Under normal phosphate conditions, total toxin yields after arsenate treatment followed a typical inverted U-shape hormesis, with a peak value of 2.25±0.06 mg L −1 in the presence of 10 −7 M arsenate, whereas 10 −8 to 10 −6 M arsenate increased leakage of ∼75% microcystin. Under phosphate starvation, total toxin yields were not affected by arsenate, while 10and 10 −5 M arsenate stimulated microcystin leakage. It is suggested that arsenate may play a role in the process of microcystin biosynthesis and excretion. Given the arsenic concentrations in aquaculture ponds in Taiwan, arsenate favors survival of toxic M. aeruginosa in such ponds, and arsenate-stimulated microcystin production and leakage may have an impact on the food chain.

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“…Edible bivalves are well-know bioindicators which can supply the direct estimation of bioavailability of toxic compounds as metal(loid)s (Argese et al, 2005;Bettiol et al, 2008). They have been widely investigated to determine the risks associated with their consumption (Sfriso et al, 2008;Figueira et al, 2011Figueira et al, , 2013Freitas et al, 2012a,b;Velez et al, 2014;2015a,b;Chiesa et al, 2018).…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Biogeochemical dynamics and bioaccumulation processes in Manila clam: Implications for biodiversity and ecosystem services in the Ria de Aveiro Lagoon

Breda

Chiesa

Freitas

et al. 2018

Estuarine, Coastal and Shelf Science

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The present work was carried out in the Ria de Aveiro Lagoon (Portugal) to better understand the dynamics driving the bioaccumulation processes in edible bivalves, namely in the Manila clam Ruditapes philippinarum. For the first time, a holistic approach was applied, collecting data on sediment physico-chemical characteristics and its contamination, geochemical speciation and metal(loid) bioaccumulation in clams, from three exploited areas of the lagoon (Costa Nova, Torreira, Ílhavo). The Ria de Aveiro Lagoon is part of the Natura 2000 network, has the designation of Special Protection Area (SPA), contains Sites of Community Importance (SCI), it is protected by the EU Birds Directive (79/109/CEE) and includes a natural reserve in its northern part. Specifically concerning the metal(loid) occurrence, the monitoring and the identification of contaminated sites in protected areas are priorities, to improve the biodiversity conservation efforts and to ensure the correct management of natural resources. Results showed that multiple driving forces interacted together to determine site-specific impacts, resulting in different risks at local scale for the transferring of the metal(loid)s to the trophic chain. Hydrodynamics played a major role driving the occurrence of depositional or ablative sites, influencing the granulometric composition of sediments and their contamination; metal(loid) chemical forms were then determinated by multiple factors like pH, redox potential and organic matter content. The geochemical speciation data showed that the Ílhavo area should be considered the most dangerous in terms of clam consumption, since in case of environmental changes, possible conversion of the elements from the potentially bioavailable forms to the bioavailable ones can occur. Moreover, bioaccumulation processes in Manila clam were observed for Cd, Zn and especially As, the latter representing serious risk for consumer safety throughout clam consumption.

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Distribution of arsenic compounds in Mytilus galloprovincialis of the Venice lagoon (Italy)

Cited by 31 publications

References 18 publications

Environmental exposure to arsenic and chromium in an industrial area

Environmental exposure to arsenic and chromium in an industrial area

Effects of arsenate on the growth and microcystin production of Microcystis aeruginosa isolated from Taiwan as influenced by extracellular phosphate

Biogeochemical dynamics and bioaccumulation processes in Manila clam: Implications for biodiversity and ecosystem services in the Ria de Aveiro Lagoon

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