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Seasonal assessment of trace element contamination in intertidal sediments of the meso-macrotidal Hooghly (Ganges) River Estuary with a note on mercury speciation

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2018
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Serological markers of recent Campylobacter jejuni infection in patients with Guillain–Barré Syndrome in the State of Piauí, Brazil, 2014–2016.pdf (538.1xmlui.dri2xhtml.METS-1.0.size-kilobytes)
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http://patua.iec.gov.br//handle/iec/3055
xmlui.dri2xhtml.METS-1.0.item-author
Mondal, Priyanka
Mendes, Rosivaldo de Alcântara
Jonathan, M. P
Biswas, Jayanta Kumar
Murugan, Kadarkarai
Sarkar, Santosh Kumar
xmlui.dri2xhtml.METS-1.0.item-abstract
The spatial and seasonal distribution of trace elements (TEs) (n = 16) in surficial sediment were examined along the Hooghly River Estuary (~ 175 km), India. A synchronous elevation of majority of TEs concentration (mg kg− 1) was encountered during monsoon with the following descending order: Al (67070); Fe (31300); Cd (5.73); Cr (71.17); Cu (29.09); Mn (658.74); Ni (35.89). An overall low and homogeneous concentration of total Hg (THg = 17.85 ± 4.98 ng g− 1) was recorded in which methyl mercury (MeHg) shared minor fraction (8–31%) of the THg. Sediment pollution indices, viz. geo-accumulation index (Igeo) and enrichment factor (EF) for Cd (Igeo = 1.92–3.67; EF = 13.83–31.17) and Ba (Igeo = 0.79–5.03; EF = 5.79–108.94) suggested high contamination from anthropogenic sources. From factor analysis it was inferred that TEs primarily originated from lithogenic sources. This study would provide the latest benchmark of TE pollution along with the first record of MeHg in this fluvial system which recommends reliable monitoring to safeguard geochemical health of this stressed environment.
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MONDAL, Priyanka et al. Seasonal assessment of trace element contamination in intertidal sediments of the meso-macrotidal Hooghly (Ganges) River Estuary with a note on mercury speciation. Marine Pollution Bulletin, v. 127, p. 117-130, Feb. 2018.
xmlui.dri2xhtml.METS-1.0.item-decsPrimary
Oligoelementos / toxicidade
Poluição Ambiental / ánalise
Poluição da Água / análise
Mercúrio / toxicidade
Oligoelementos - análise
Monitoramento Ambiental
Poluentes da Água
Poluição de Estuários
Poluição de Rios / análise
Saúde Ambiental
Sedimentos / análise
Estações do Ano
Índia
Estuário do Rio Hooghly
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Instituto Evandro Chagas - SVS - MS - 2007-2018 Rodovia BR316 km 7 sn - Levilandia - 67030-000 - Ananindeua - Para - Brasil.
Licença Creative CommonsEste trabalho está licenciado com uma Licença Creative Commons - Atribuição-NãoComercial 4.0 Internacional
Tel: (55 91) 3214-2191
Email: biblioteca@iec.gov.br / clariceneta@iec.gov.br
 

 

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Instituto Evandro Chagas - SVS - MS - 2007-2018 Rodovia BR316 km 7 sn - Levilandia - 67030-000 - Ananindeua - Para - Brasil.
Licença Creative CommonsEste trabalho está licenciado com uma Licença Creative Commons - Atribuição-NãoComercial 4.0 Internacional
Tel: (55 91) 3214-2191
Email: biblioteca@iec.gov.br / clariceneta@iec.gov.br