Uptake and distribution of zinc, cadmium, lead and copper in Brassica napus var. oleífera and helianthus annus grown in contaminated soils.

Abstract

Brassica napus var. oleifera and Helianth11s annus were grown in artificially contaminaled soils. Accumulation and translocation of 1he environmenlal pollutams zinc, cadmium, lead, and copper, was evaluated in different porlions of the plants at two harvesting times. The distributio n into the plants of these metal ions, as well as their capacity for contaminant phytoextraction and accumulation was assessed. For this purpose, an analytical method util izing focused ultrasound employed for extraction and stripping voltammetry for measurement has been optimized and validated for the simultaneous measurement of Zn, Cd, Pb, and Cu in plant extracts.