DBPapers
DOI: 10.5593/sgem2012/s16.v4008

HUMAN EXPOSURE AT TRACE METALS FROM MINING ACTIVITIES - CASE STUDY: ZLATNA, ROMANIA

I. POPESCU, R. STANESCU
Wednesday 1 August 2012 by Libadmin2012

References: 12th International Multidisciplinary Scientific GeoConference, www.sgem.org, SGEM2012 Conference Proceedings/ ISSN 1314-2704, June 17-23, 2012, Vol. 4, 99 - 106 pp

ABSTRACT

In Romania, soil pollution is one of the key problems for some towns and is extended to
many areas that urgently require appropriate remediation measures to restore their initial
ecological characteristics. Among the most affected towns is Zlatna area where, until its
closure in 2004, the non-ferrous metal ore smelter has caused great damages to the
environment due to emissions of dust with a very high content of heavy metals.
In the studied area, the soil is used for gardening, agriculture and pasture, generating a
highly risk of transfer of contaminants from soils into the food chain. The extension of
the contamination, before and after mining activities were stopped, makes difficult to
prioritize the areas which must be remediated and strongly requires studies to assess the
transfer of contaminants from soils to receptors.
The aim of this paper is to set the basis of risk assessment procedures, where starting
from a source (pseudo-total content of metal in soil) the pathways are estimated in order
to provide the quantity of contaminants (Pb, Cd) that reach the receptors. Lead and
cadmium highly exceed the intervention limits set by the Romanian legislation,
Therefore, the pseudo-total concentrations have been determined in order to evaluate the
exposure calculating daily intake doses for human body in the impacted area.

Keywords: heavy metals, soil pollution, pseudo-total content, daily intake dose, CSOIL

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