Study of topsoil in Marcos Juárez town, province of Córdoba, Argentine. Presence of organochlorides compounds (OCPs).

MARA CONSTANZA AVENDAÑO; PABLO A. ROQUÉ; MIRIAM E. PALOMEQUE

Santiago de Chile

Congreso; V Congreso Latinoamericano de Residuos de Plaguicidas; 2015

The agricultural activities in our country has been grown and changed markedly in recent years. It led to increase the general interest in knowing the effect of different agricultural practices on ecosystems. There is also concern over soil degradation such as loss of organic matter, nutrients and erosion, and loss of diversity [1], and the possible effects on human health of hazardous chemical.Recent epidemiological studies have provided strong evidence in associating the concentration of particulate matter in the air and adverse health effects. Bearing in mind the above mentioned, we are interested on studying the hazardous chemicals content on the topsoil and the smaller particles fraction on it.Marcos Juárez is a city in the southwestern of Córdoba province and is located in an area of great agricultural productivity. Consequently, samples of the topsoil were taking around the city and in parks and squares of it at different times between 2010 and 2013.Performs a risk assessment of contaminated sites requires the quantification of chemical availability and other parameters in the risk calculations [2]. Therefore, the aim of this work is to obtain preliminary information from the studied area to assess the current environment quality and the existence of anthropogenic contribution of potentially dangerous chemical species.Organochloride pesticides (OCPs) extractions were performed according to EPA standard methods 3550B [5] and 8081B [6]. The OCPs were analyzed on an Agilent GC equipped with an electronic capture detector (GC/ECD) by using a column 30m HP-5 (30mx0,25; 0,25µm). In this study, we shown the concentration values for OCPs found and the results obtained after applying the statistical studies. The results showed significant differences between sampling times and between places of the application. Compounds present in samples of parks near of country fields have similarities with them. The presence of other chemicals were detected in squares, which are also noxious.