TY - JOUR 
A1 - Gabarrón Sánchez, María
AU - Faz Cano, Ángel
AU - Martínez Martínez, Silvia
AU - Zornoza Belmonte, Raúl
AU - Acosta Avilés, José Alberto
T1 - Assessment of metals behaviour in industrial soil using sequential extraction, multivariable analysis and a geostatistical approach
Y1 - 2017
SN - 0375-6742
UR - http://hdl.handle.net/10317/8494
AB - The main objectives of this studywere to evaluate the degree of Pb, Cu, Zn, Cd, Cr and Ni pollution using pollution indexes and geostatistical approach, and to assess metals dynamic using sequential extraction procedure and multivariable statistical analysis in surface soils and soil profiles froman industrial complex as a base for a correct management in order to avoid health and environmental problems. Results showed that the industrial activity increases both Pb (103 mgkg−1), Zn (526 mgkg−1) and Cu (39 mgkg−1) concentrations and salinity in soil. Pollution indexes showed that industrial soils were moderately contaminated by Zn, Pb, Cu, Cr and Ni as well as a moderate ecological risk was reported. Two main areas were identified: southeast area with the highest metal concentrations, and northwest areawith the lowest levels. Chemical speciation of metals showed that the residual phase was the dominant phase for all metals. However, Pb and Zn were highly associated to the reducible phase (25–30% and 35–40% respectively) and a significant concentration was associated to carbonates (5% for both metals). In contrast, Cu, Cr and Ni were mainly bound to the residual phase (N80% for all metals) with low concentrations retained to reducible phase, and very low concentrations bound to the most labile phases. Cd was the most mobile metal with high concentration associated to exchangeable (5%) and carbonates (15–20%) phases. Therefore, Pb, Zn and Cd represent the greatest risk for human health and the environment.
KW - Edafología y Química Agrícola
KW - Chemical speciation
KW - Heavy metals
KW - Distribution maps
KW - Soil pollution
KW - 2511.04 Química de Suelos
KW - 2303.18 Metales
LA - eng
PB - Elsevier Science Publishers
ER -