Uptake of metals and metalloids by plants growing in a lead-zinc mine area, Northern Vietnam

growing naturally at one of the largest lead–zinc mines in Northern Vietnam. Total concentrations of heavy metals and arsenic were determined in the plant and in associated soil and water in and outside of the mine area. The results indicate that hyperaccumulation levels (mg kg−1 dry weight) were obtained in Houttuynia cordata Thunb. (1140) and Pteris vittata L. (3750) for arsenic, and in Ageratum houstonianum Mill. (1130), Potamogeton oxyphyllus Miq. (4210), and P. vittata (1020) for lead. To the best of our knowledge, the present paper is the first report on metal accumulation and hyperaccumulation by H. cordata, A. houstonianum, and P. oxyphyllus. Based on the obtained concentrations of metals, bioconcentration and translocation factors, as well as the biomass of these plants, the two latter species and P. vittata are good candidates for phytoremediation of sites contaminated with arsenic and multi-metals. None of the collected plants was suitable for phytomining, given their low concentrations of useful metals (e.g., silver, gallium, and indium).

Title:

	Uptake of metals and metalloids by plants growing in a lead-zinc mine area, Northern Vietnam
Authors:	Nguyen, Thi Hoang Ha Mai, Trong Nhuan Masayuki, Sakakibara
Keywords:	Metals Phytoremediation Phytomining Plants
Issue Date:	2010
Publisher:	ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Citation:	ISIKNOWLEDGE
Abstract:	growing naturally at one of the largest lead–zinc mines in Northern Vietnam. Total concentrations of heavy metals and arsenic were determined in the plant and in associated soil and water in and outside of the mine area. The results indicate that hyperaccumulation levels (mg kg−1 dry weight) were obtained in Houttuynia cordata Thunb. (1140) and Pteris vittata L. (3750) for arsenic, and in Ageratum houstonianum Mill. (1130), Potamogeton oxyphyllus Miq. (4210), and P. vittata (1020) for lead. To the best of our knowledge, the present paper is the first report on metal accumulation and hyperaccumulation by H. cordata, A. houstonianum, and P. oxyphyllus. Based on the obtained concentrations of metals, bioconcentration and translocation factors, as well as the biomass of these plants, the two latter species and P. vittata are good candidates for phytoremediation of sites contaminated with arsenic and multi-metals. None of the collected plants was suitable for phytomining, given their low concentrations of useful metals (e.g., silver, gallium, and indium).
Description:	TNS06050 ; JOURNAL OF HAZARDOUS MATERIALS Volume: 186 Issue: 2-3 Pages: 1384-1391
URI:	http://repository.vnu.edu.vn/handle/VNU_123/28832 http://www.sciencedirect.com/science/article/pii/S0304389410016006
ISSN:	0304-3894
Appears in Collections:	Bài báo của ĐHQGHN trong Web of Science