Spatial distribution of trace elements in surface sediments of Hooghly (Ganges) river estuary in West Bengal, India

AbstractThe spatial distribution of trace elements in surface sediments of the Hooghly estuary was studied over the monsoons in 2014–2017. As, Cd, Ni, Pb and U were two- to sixteen-fold the crust means with increasing levels toward the estuary, with Ni peak during the post-monsoon. Pearson’s correlation matrix, cluster analysis, enrichment factors and pollution index revealed the anthropic source and association of trace elements with Fe, Mn and Al and of Pb with U. Geoaccumulation index revealed for Ni an extremely contaminated situation at the estuary water during monsoon and for Cd a heavily contaminated situation at freshwater location. The potential contamination index was >6; thus, sediments were very severely contaminated by As, Cd and Ni with worst situation for As and Cd at fresh and brackish water and during post-monsoon. The overall ecological risk was severe, 300≤RI<600 at all sites and seasons, especially after the monsoon, at fluvial and brackish locations.

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Spatial distribution of trace elements in the surface sediments of a major European estuary (Loire Estuary, France): Source identification and evaluation of anthropogenic contribution

Journal of Sea Research ◽

10.1016/j.seares.2016.08.005 ◽

2016 ◽

Vol 118 ◽

pp. 77-91 ◽

Cited By ~ 13

Author(s):

Alexandra Coynel ◽

Laureline Gorse ◽

Cécile Curti ◽

Jörg Schafer ◽

Cécile Grosbois ◽

...

Keyword(s):

Trace Elements ◽

Spatial Distribution ◽

Source Identification ◽

Surface Sediments ◽

Anthropogenic Contribution ◽

Distribution Of Trace Elements

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The potential of trace elements mapping in child’s natal tooth by laser ablation-ICPMS method

Journal of Environmental Health Science and Engineering ◽

10.1007/s40201-021-00611-2 ◽

2021 ◽

Author(s):

Aneta Olszewska ◽

Anetta Hanć

Keyword(s):

Trace Elements ◽

Spatial Distribution ◽

Quantitative Assessment ◽

Toxic Elements ◽

Tooth Enamel ◽

Perinatal Period ◽

Potentially Toxic Elements ◽

Metal Exposure ◽

Icp Ms ◽

Distribution Of Trace Elements

Abstract Purpose Tooth enamel might provide past chronological metabolic, nutritional status and trace metal exposure during development. Thus, the trace elements distribution embedded in tooth tissues represents an archive of the environmental conditions. The choice of biomarker is estimated as critical to the measurement of metal exposure. Natal teeth are defined as teeth being present at birth. Methods LA-ICP-MS provides a quantitative assessment of spatial distribution of trace elements in a natal tooth. The objective of the current study was to compare concentrations of building and other elements in a rare but reliable and valid biomarker - natal tooth. Results It have been reported presence of potentially toxic elements: Pb, Cu, Mn, Cd, Ni distributed in prenatally and perinatally formed enamel and dentine. Conclusions Analyses of deciduous enamel can provide answers into individuals’ earliest development, including critical pre- and perinatal period.

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