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Acta Agronómica
Print version ISSN 0120-2812
Abstract
CAMARGO GARCIA, Juan Carlos; ARIAS MORALES, Jennifer Paola and MUNOZ PAREDES, Dein. Mercury content assessment in soils and stream-be in Miraflores zone, Quinchía, Colombia. Acta Agron. [online]. 2015, vol.64, n.2, pp.165-177. ISSN 0120-2812. https://doi.org/10.15446/acag.v64n2.40639.
In the municipality of Quinchía (rural area of Miraflores) at Risaralda department, Colombia, an assessment of mercury (Hg) soil content was carried out. This zone has been influenced by non tech gold mining procedures for more than 30 years. In order to measure Hg soil content in soils close to assembly mining and bed streams (natural and artificial) a systematic sampling design was carried out. Average values of 7.1 mg/kg of Hg were over those defined as permissible by the European countries, being higher those close to mining mounting and especially when rainfall increased. Soil degradation, was not only associated with Hg contamination but also with rock residues disposal which has converted this area to a wasted land, completely degraded.
Keywords : Soils contamination; soils degradation; mining; kriging analysis.