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Journal ArticleDOI

Effect of pH and Salinity on Sorption of Antimony (III and V) on Mangrove Sediment, Sundarban, India

TL;DR: The extent of toxic metalloid retention and bioavailability and mobility in the sediment is of interest for understanding their biogeochemical cycling and for accurate risk assessment in an ecosyst...
Abstract: The extent of toxic metalloid retention and bioavailability and mobility in the sediment is of interest for understanding their biogeochemical cycling and for accurate risk assessment in an ecosyst...
Citations
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Journal ArticleDOI
TL;DR: In this paper, a comprehensive and critical rather than encyclopaedic summary of the data of environmental chemistry is presented, focusing on air, water, rocks and soils; the cycling of C, N, H, O2 and S in the biosphere are covered in 1 chapter and the elemental Other CABI sites are discussed.
Abstract: All chapters of the previous edition [see HbA 37, 2103] have been completely rewritten to cover the rapid increase in research in this area. The number of literature citations have been reduced by referring to recent review articles and the book aims at a comprehensive and critical rather than encyclopaedic summary of the data of environmental chemistry. The 1st 4 chapters deal with air, water, rocks and soils; the cycling of C, N, H, O2 and S in the biosphere are covered in 1 chapter and the elemental Other CABI sites 

289 citations

Journal ArticleDOI
TL;DR: In this article, the authors studied the biogeochemistry of Sb in the Sundarbans mangroves by measuring Sb concentration in sediment, plant organs, river water, sea water and pore water, and determining Sb fluxes within the ecosystem reservoirs.
Abstract: Antimony (Sb), a naturally occurring trace element, tends to be enriched in the top-soil and contributes to soil contamination due to continued human activities. However, little is known about plant uptake of Sb, its storage in plant biomass and recycling in large littoral zones of tropical regions, subjected to strong anthropogenic impact. Biogeochemistry of Sb has been studied in the world’s largest Sundarbans mangroves by measuring Sb concentration in sediment, plant organs, river water, sea water and pore water, and by determining Sb fluxes within the ecosystem reservoirs. Mangrove estuarine water and sediment appeared to be non-polluted in Sb as confirmed by their ecotoxicological indexes. Sediment represented major pool of Sb (2170 g ha-1) compared to plant biomass (2.2 g ha-1). Antimony concentration (μg kg-1) in mangrove roots was highest (17±6) followed by leaf and wood (10.5±6, 9±4, respectively, n = 24). Species-specific variability in Sb concentration was observed with Aegiceras corniculatum, showing highest concentration (48.8 μg kg-1) and Avicenna marina lowest (16.6 μg kg-1). Riverine input of Sb (9.3 to 12 Mg yr-1) was 3-order of magnitude higher than the mangrove sediment-derived input (0.02 to 0.05 Mg yr-1), suggesting the latter as negligible contributor of Sb to the Sundarbans coastal water. The mass balance calculations demonstrate that 63 to 88% of the annual riverine discharge of Sb export to the Bay of Bengal. Further biogeochemical studies should address Sb transport and speciation in surface waters and pore waters of this region.

6 citations

References
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Journal ArticleDOI
Gebel T1
TL;DR: There is evidence that in mammals antimony, unlike arsenic, is not detoxified via methylation but it still remains unclear what mechanism is responsible for antimony's genotoxicity.

413 citations


"Effect of pH and Salinity on Sorpti..." refers background in this paper

  • ...Its toxicity, adsorption behavior, and other chemical properties are comparable to that of arsenic (As) (Mitsunobu et al., 2006; Filella et al., 2002a; Gebel, 1997; CONTACT Tapan Kumar Jana tkjana@hotmail.com Department of Marine Science, Calcutta University, 35, B. C. Road, Kolkata–700019, India....

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Journal ArticleDOI
TL;DR: The interactions of antimony with microbiota are discussed in relation to its fate in natural waters, and the following aspects: occurrence in microbiota, uptake transport mechanisms, pathways of Sb(III) removal from cells involved in antimony tolerance, oxidation and reduction of Antimony by living organisms, phytochelatin induction and biomethylation are covered.

374 citations


"Effect of pH and Salinity on Sorpti..." refers background in this paper

  • ...Both Sb(III) and Sb(V) ions are stable under acidic condition and Sb(III) exits as neutral complex, Sb(OH)3, whereas, Sb(v) should exist as a negatively charged complex, Sb(OH)6 ¡ in the pH range between 2 and 11 (Filella et al., 2002a; Buschmann and Sigg, 2004)....

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  • ...…anthropogenic (fossil fuel combustion, mining and smelting activity, and the application of super phosphate fertilizers to agricultural soil) activities (Fowler and Goering, 1991; Huang et al., 1994; Dietl et al., 1996; Filella et al., 2002a) and is considered as priority pollutants (USEPA, 1979)....

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  • ...processes such as adsorption/ desorption (Brannon and Partrick, 1985; Filella et al., 2002b)....

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  • ...Its toxicity, adsorption behavior, and other chemical properties are comparable to that of arsenic (As) (Mitsunobu et al., 2006; Filella et al., 2002a; Gebel, 1997; CONTACT Tapan Kumar Jana tkjana@hotmail.com Department of Marine Science, Calcutta University, 35, B. C. Road, Kolkata–700019, India....

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  • ...Overall, little is known about the environmental fate of antimony affected by geochemical processes such as adsorption/ desorption (Brannon and Partrick, 1985; Filella et al., 2002b)....

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Journal ArticleDOI
TL;DR: Recommendations include mangrove conservation and rehabilitation, enforcement of existing legislation, and introduction of environment-friendly aquaculture within the broader framework of community-based, integrated coastal area management, e.g. the traditional, extensive polyculture ponds in Indonesia.
Abstract: Farmed shrimp contributed 27% of total world shrimp production in 1995 with a volume of 712 000 tonnes. Undoubtedly, the shrimp culture industry earns valuable foreign exchange for developing countries and generates jobs across the industry from fry gatherers to growers and processors. However, grave socio-economic consequences – including conversion, expropriation and privatization of mangroves and other lands; salinization of water and soil; decline in food security; marginalization of coastal communities, unemployment and urban migration; and social conflicts – have followed in the wake of, shrimp farm development in the Philippines and other tropical countries. The paper focuses on mangrove ecosystems: the valuation and cost-benefit analysis of their goods and services, and the mangrove-offshore fisheries connection. Research gaps in these areas and the need to internalize the ecological and socio-economic costs (‘externalities’) of shrimp farming are highlighted. Other recommendations include mangrove conservation and rehabilitation, enforcement of existing legislation, and introduction of environment-friendly aquaculture within the broader framework of community-based, integrated coastal area management, e.g. the traditional, extensive polyculture ponds in Indonesia.

360 citations


"Effect of pH and Salinity on Sorpti..." refers background in this paper

  • ...Land reclamation for aquaculture, agriculture and urban development (Primavera, 1997), garbage...

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  • ...Land reclamation for aquaculture, agriculture and urban development (Primavera, 1997), garbage and sewage dumping, dredging and damming of rivers (Wolanski, 1992), are all disturbances that can have significant impacts on mangroves....

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Journal ArticleDOI
TL;DR: The oxidation states and host phases of Sb and As in soil samples of mine tailing (Ichinokawa mine, Ehime, Japan) and in laboratory soil-water systems were determined by X-ray absorption fine structure (XAFS) spectroscopy and suggest that Sb(V) is a very stable form in the environment and that S b is oxidized at more negative Eh than As.
Abstract: The oxidation states and host phases of Sb and As in soil samples of mine tailing (Ichinokawa mine, Ehime, Japan) and in laboratory soil-water systems were determined by X-ray absorption fine structure (XAFS) spectroscopy. HPLC-ICP-MS was used for speciation of Sb and As in soil water. In the Ichinokawa soil water system, Sb was present exclusively as the oxidized form, Sb(V), over a wide redox range (from Eh = 360 to -140 mV, pH 8), while As was present as a mixture of As(III) and As(V). This finding was confirmed in the laboratory experiments. These results suggest that Sb(V) is a very stable form in the environment and that Sb is oxidized at more negative Eh than As. Combining the results of Fe and Mn XAFS analyses and a positive correlation among Sb, As, and Fe abundances in the soil, the host phases of Sb and As in soil were Fe(III) hydroxide. XAFS analyses of Sb and As are also consistent with this finding. Under reducing conditions, the concentration of As in the soil water increased whereas that of Sb decreased in both the Ichinokawa and laboratory systems. This suggests that this contrasting behavior is controlled mainly by the different redox properties of Sb and As.

293 citations


"Effect of pH and Salinity on Sorpti..." refers background in this paper

  • ...Adsorption of antimony onto oxides and hydroxides has been observed previously (Manaka, 2006; Mitsunobu et al., 2006; Guo et al., 2014) and could be an...

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  • ...Its toxicity, adsorption behavior, and other chemical properties are comparable to that of arsenic (As) (Mitsunobu et al., 2006; Filella et al., 2002a; Gebel, 1997; CONTACT Tapan Kumar Jana tkjana@hotmail.com Department of Marine Science, Calcutta University, 35, B. C. Road, Kolkata–700019, India....

    [...]

  • ...Adsorption of antimony onto oxides and hydroxides has been observed previously (Manaka, 2006; Mitsunobu et al., 2006; Guo et al., 2014) and could be an important mechanism for Sb sorption in the mangrove sediment....

    [...]

Journal ArticleDOI
TL;DR: In this paper, a comprehensive and critical rather than encyclopaedic summary of the data of environmental chemistry is presented, focusing on air, water, rocks and soils; the cycling of C, N, H, O2 and S in the biosphere are covered in 1 chapter and the elemental Other CABI sites are discussed.
Abstract: All chapters of the previous edition [see HbA 37, 2103] have been completely rewritten to cover the rapid increase in research in this area. The number of literature citations have been reduced by referring to recent review articles and the book aims at a comprehensive and critical rather than encyclopaedic summary of the data of environmental chemistry. The 1st 4 chapters deal with air, water, rocks and soils; the cycling of C, N, H, O2 and S in the biosphere are covered in 1 chapter and the elemental Other CABI sites 

289 citations


"Effect of pH and Salinity on Sorpti..." refers result in this paper

  • ...…this study, the background level of Sb in the sediment (0.22–0.43 mg kg¡1) was similar to the value determined in Florida soils (0.06–0.79 mg kg¡1, Chen et al., 2001) and the typical crustal abundances (0.2 mg kg¡1) and mean marine sediment (1.2 mg kg¡1) of Sb (Bowen, 1979; Smith and Huyck, 1999)....

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  • ...(Bowen, 1979)....

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