Arsenic uptake and accumulation in fern species growing at arsenic-contaminated sites of southern China: field surveys

International Journal of Phytoremediation
H B WangC Y Lan

Abstract

Aiming at searching for new arsenic (As) hyperaccumulators, field surveys were conducted at 12 As-contaminated sites located in Guangxi and Guangdong Provinces of southern China. Samples of 24 fern species belonging to 16 genera and 11 families as well as their associated soils were collected and As concentrations in plant and soil samples were determined by inductively coupled plasma-atomic emission spectrometry (ICP-AES). The results show that among 24 fern species, Pteris multifida and P. oshimensis can (hyper)accumulate As in their fronds with high concentrations in addition to P. vittata and P. cretica var. nervosa, which have been previously identified as As hyperaccumulators. Total As concentrations in soils associated with P. multifida and P. oshimensis varied from 1262 to 47,235 mg kg(-1), but the DTPA-extractable As concentrations were relatively low, with a maximum of 65 mg kg(-1). Forty-four of 49 samples of P. multifida collected from five sites and 3 of 13 samples of P. oshimensis collected from one site accumulated over 1000 mg As kg(-1) in their fronds and As concentrations in the fronds were higher than those in the petioles and rhizoids. Although As concentrations in the fronds of P. oshimensis (789 mg kg(-1) ...Continue Reading

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Citations

Jan 27, 2007·Environmental Geochemistry and Health·Chao-Yang WeiWu-Yi Wang
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Jan 27, 2020·Environmental Science and Pollution Research International·Qinchun LiChunyu Zhang
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Apr 24, 2021·Environmental Science and Pollution Research International·Martina GrifoniMeri Barbafieri
Oct 3, 2018·Environmental Science & Technology·Jin-Tian LiWen-Sheng Shu

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