Contaminacin por metales pesados en la Cuenca del Ro Moche, 1980 2010, La Libertad PerPollution b! hea"! metals in the Moche Ri"er #asin, 1980 $2010, La Libertad $Peru%&li' (uaran)a Moreno1,*, +duardo M&nde, -arca2, .ito /uilcat Len0, %&li' (uaran)a 1r&"alo213epartamento de #iolo)a, %acultad de Ciencias #iol)icas, 4ni"ersidad 5acional de 6ru7illo, Per82 3epartamento de 1)ronoma ! 9ootecnia, %acultad de Ciencias 1)ropecuarias, 4ni"ersidad 5acional de 6ru7illo, Per8 03epartamento de /umica0, %acultad de :n)eniera /umica, 4ni"ersidad 5acional de 6ru7illo, Per82 1)rosolutions+:RL, 6ru7illo, Per8 Recibido 18 +nero 2012; aceptado 00 ue la especie m=s contaminada8Palabras cla"eC Contaminacin, rela"e, metal pesado, !uca81bstract6he pollution o> the continental Jaters is a problem at a Jorld scale, mainl! due to the impact o> the minin) tailin)s8 4sin) top technolo)ies as neutrali,ation plants o> acid Jaters, man! companies are miti)atin) the impact o> this >unctionin); so taHin) as a re>erence the chan)es in the concentration o> hea"! metals present in Jater, soils and culti"ations o> the hi)h, middle and loJ basin o> the Moche ri"er, samplin)s o> Jater Jere obtained at ei)ht stations o> the Moche ri"er @6ru7illo, PeruA, and in >our sectors o>its mar)ins >or soils and culti"ations8 6he most representati"e hea"! metals in Jater Jere >ound in the hi)h basin durin) the !ear 1980C iron @DDE8D00 ppmA, lead @10080ED ppmA, cadmium @28DD0 ppmA, copper @F8900 ppmA, ,inc @2F28900 ppmA and arsenic @98000 ppmA; Jhereas in the soils the hi)her concentrations Jere >ound on the ri)ht mar)in o> median basin in the !ear 1980C iron @808200 m)GH)A; lead @08820 m)GH)A; cadmium @08012 m)GH)A; copper @18220 m)GH)A; ,inc @08080 m)GH)A and arsenic @0801F m)GH)A; in relation to the metal accumulation in the culti"ations, iron @08FD2D m)GH)A Jas predominant, bein) the !ucca @Manihot esculentusA the most contaminated culti"ation n8 :t is concluded that, most contamination le"el o> Jater anal!sis Jas present in the hi)h basin durin) 1980, Jhereas the ri)ht side o> the median basin hi)hest le"els o> contamination in the samples o> soils; relatin) to the culti"es, the !ucca @Manihot esculentusA Jas the species most contaminated8Ke!JordsCPollution, tailin)s, hea"! metal, !ucca8