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Heavy Metal Accumulation in Common Aquatic Plants in Rivers and Lakes in the Taihu Basin

Overview
Journal Int J Environ Res Public Health
Publisher MDPI
Specialties Environmental Health
Public Health
Date 2018 Dec 19
PMID 30558148
Citations 8
Authors
Li Bai
Xiao-Long Liu
Jian Hu
Jun Li
Zhong-Liang Wang
Guilin Han
Si-Liang Li
Cong-Qiang Liu
Affiliations
Soon will be listed here.
Abstract

We investigated the concentrations of 10 heavy metals in , , , and to evaluate their potential to bioaccumulate heavy metals and related influencing factors in Taihu Lake. Enrichment factor (EF) values of Cu, Cr, Mn, Ni, Zn, Co, Pb, and V were above 2.0, indicating moderate to significant contamination in sediment. Most of Ti, V, Cr, Mn, and Ni in , , and and V in were within excess/toxic level in plants, but higher than normal level. Even though no aquatic plants in this study were identified as a hyperaccumulator, relatively higher concentrations in aquatic plants were found in Taihu Lake than have been found in other previous studies. Heavy metal in submerged plants, especially in their stems, seemed to be more closely related to metals in water and sediment than those in floating-leaf plants. Ratios of metals in stem versus leaves in all plants ranged from 0.2 to 25.8, indicating various accumulation capabilities of plant organs. These findings contribute to the application of submerged aquatic plants to heavy metal removal from moderately contaminated lakes.

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