SOFT 2004 Meeting Abstracts - Society of Forensic Toxicologists

C4
THE ENVIRONMENTAL IMPACT OF LEAD, CHROMIUM, ZINC AND CADMIUM PRESENT
IN RUBBISH DUMP
C.H. Colangelo*I,2,3 ,L.A. Ferrari 1,3 ,J.C. Chaumeil l , C.A. Seminario Correal, S. Georgeri l
1. Laboratorio de Toxicologfa y Quimica Legal * Direcci6n General de Asesorias Periciales - Suprema
Corte de Justicia de la Provincia de Buenos.Aires Calle 41 e/119 y 120 La Plata (1900) - Buenos
Aires Republica Argentina .,2. University of La Pampa - Argentina, 3. University of Moron Argentina
Lead, Chromiun, Zinc and Cadmiun concentrations in differents environmental matrixes (soils, drinking
underground waters, surfaces waters and edibles fresh vegetables such as celery and lettuce) collected at
selected areas near a rubbish dump located at Buenos Aires Province in Argentina were analyzed.
The above mentioned samples were conditioned for their analysis by atomic absorption spectrophotometry.
Soils and vegetables samples were first treated by microwave digestion with nitric acid, and then metal
concentrations were determinated by aspiration in flame of air* acetylene technique.
Water samples were analyzed by using a graphite oven.
The following table shows the metal concentrations obtained for the different samples:
Samples
Lead Chromium Zinc Cadmium I
ppb 1>pb ppb
i
..I!Pb
Underground water 1 (e) 140 70 23