title: Riparian plants on mine runoff in Zimapan, Hidalgo, Mexico: Useful for phytoremediation?
abstract: Dispersion and runoff of mine tailings have serious implications for human and ecosystem health in the surroundings of mines. Water, soils and plants were sampled in transects perpendicular to the Santiago stream in Zimapan, Hidalgo, which receives runoff sediments from two acidic and one alkaline mine tailing. Concentrations of potentially toxic elements (PTE) were measured in water, soils (rhizosphere and non-rhizosphere) and plants. Using diethylenetriaminepentaacetic acid (DTPA) extractable concentrations of Cu, Zn, Ni, Cd and Pb in rhizosphere soil, the bioconcentration and translocation factors were calculated. Ruderal annuals formed the principal element of the herbaceous vegetation. Accumulation was the most frequent strategy to deal with high concentrations of Zn, Cu, Ni, Cd and Pb. The order of concentration in plant tissue was Zn>Pb>Cu>Ni>Cd. Most plants contained concentrations of PTE considered as phytotoxic and behaved as metal tolerant species. Rorippa nasturtium-aquaticum accumulated particularly high concentrations of Cu. Parietaria pensylvanica and Commelina diffusa, common tropical weeds, behaved as Zn hyperaccumulators and should be studied further.
authors.affiliation: a Colegio de Postgraduados, Soil and Environmental Chemistry Lab, Environmental Microbiology Lab and Botany Speciality, Carretera México-Texcoco , Montecillo Texcoco , Estado de México , México.
authors.forename: Eréndira
authors.initials: E
authors.lastname: Carmona-Chit
authors.affiliation: a Colegio de Postgraduados, Soil and Environmental Chemistry Lab, Environmental Microbiology Lab and Botany Speciality, Carretera México-Texcoco , Montecillo Texcoco , Estado de México , México.
authors.forename: Rogelio
authors.initials: R
authors.lastname: Carrillo-González
authors.affiliation: a Colegio de Postgraduados, Soil and Environmental Chemistry Lab, Environmental Microbiology Lab and Botany Speciality, Carretera México-Texcoco , Montecillo Texcoco , Estado de México , México.
authors.forename: Ma Del Carmen A
authors.initials: Mdel C
authors.lastname: González-Chávez
authors.affiliation: a Colegio de Postgraduados, Soil and Environmental Chemistry Lab, Environmental Microbiology Lab and Botany Speciality, Carretera México-Texcoco , Montecillo Texcoco , Estado de México , México.
authors.forename: Heike
authors.initials: H
authors.lastname: Vibrans
authors.affiliation: b Instituto de Investigación en Zonas Desérticas, Universidad Autónoma de San Luis Potosí , San Luis Potosí , Mexico.
authors.forename: Laura
authors.initials: L
authors.lastname: Yáñez-Espinosa
authors.affiliation: c Colegio de Postgraduados Campus Puebla , Puebla , Mexico.
authors.forename: Adriana
authors.initials: A
authors.lastname: Delgado-Alvarado
mesh_terms: D001673:Biodegradation, Environmental; D004784:Environmental Monitoring; D007220:Industrial Waste; D019684:Magnoliopsida / Q000378:metabolism*; D019216:Metals, Heavy / Q000378:metabolism*; D008800:Mexico; D008906:Mining; D058441:Rhizosphere; D012989:Soil Pollutants / Q000378:metabolism*; D014874:Water Pollutants, Chemical / Q000378:metabolism*
chemical_list: D007220:Industrial Waste; D019216:Metals, Heavy; D012989:Soil Pollutants; D014874:Water Pollutants, Chemical
keywords: bioaccumulation of metals; hypertolerant plants; mine tailings