Trace metal distribution and ecological risk assessment in the core sediments of a highly urbanized tropical mangrove ecosystem, Southwest coast of India

Sediment pollution: An assessment of anthropogenic and geogenic trace element contributions along the central Algerian coast

“…Moreover, some of these variables (Fe, Mn, Pb, Co, and Zn) also had moderate to high positive loadings in PC2, suggesting the partial dissolution and mobility of these elements in the sedimentary water column due to a marked increase of OM content in surficial sediments (Fig. 3) which acts as an electron donor, thus, reducing Fe or Mn oxyhydroxides (Moushmi et al, 2022). This is very well supported by the strong loadings of TW and OM (0.98 and 0.72, respectively) in PC2.…”

“…For this purpose, we used Fe as a reference metal to calculate EFs because of the predominance in the study area of Fe-rich secondary phases exclusively of geogenic and eolian origin. Furthermore, it is noteworthy that many authors have used Fe successfully for geochemical normalization (Ahmed et al, 2018;Bachouche et al, 2017;Moushmi et al, 2022;Ranjan et al, 2018).…”

“…Sediment cores from the coastal zone have been shown to be excellent indicators for the investigation of depositional trends, sources and risk of trace metals (Li and Li, 2017). Many researchers have studied geochemistry and the environmental quality of sediment cores in various aquatic ecosystems globally (Barbieri et al, 2018;Gao et al, 2016;Moushmi et al, 2022;Romano et al, 2018;Zhu et al, 2017).…”