alexa Uptake and accumulation of lead by plants from the Bo Ngam lead mine area in Thailand.
Engineering

Engineering

Journal of Civil & Environmental Engineering

Author(s): Rotkittikhun P, Kruatrachue M, Chaiyarat R, Ngernsansaruay C, Pokethitiyook P,

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Abstract A field survey of terrestrial plants growing on Bo Ngam lead mine area, Thailand, was conducted to identify species accumulating exceptionally high concentrations of lead. Plant and soil samples were collected from five areas. Lead concentrations in surface soil ranged from 325 to 142,400 mg/kg. The highest lead concentration in soil was found at the ore dressing plant area and lowest at a natural pond area. In different areas, the concentrations of lead in plants were different when comparing various study sites. A total of 48 plant species belonging to 14 families were collected from five sampling sites. Twenty-six plant species had lead concentrations more than 1000 mg/kg in their shoots. Three species (Microstegium ciliatum, Polygala umbonata, Spermacoce mauritiana) showed extremely high lead concentrations in their shoots (12,200-28,370 mg/kg) and roots (14,580-128,830 mg/kg). This article was published in Environ Pollut and referenced in Journal of Civil & Environmental Engineering

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