Metals in Thaisella chocolata from the Callao Bay, Perú


  • José Iannacone, Seid Romero, Joseph Rosasa, Angélica Guabloche, Lorena Alvariño, Luz Castañeda, Luis Carrasco


bioconcentration, Potentially toxic elements, quality standard, Thaisella chocolata


The concentration of Al, As, Ba, B, Cd, Ca, Co, Cr, Cu, Sr, P, Fe, Li, Mg, Mn, Hg, Ni, Ag, Pb, K, Se, Na, Ti, V and Zn in water, sediment and Thaisella chocolata muscle in three sampling zones during the four seasons of the year (autumn, winter, spring, and summer) in the Bahía del Callao, Perú. The concentration of heavy metals in T. chocolata by sampling area was compared with environmental standards, and the bioconcentration factor for each element was determined. A correlation matrix was made for the concentrations of metals analyzed and the physicochemical parameters of the water. The average concentrations of As, Cd, Cu, Cr, Hg, Pb, and Se in all zones and stations exceeded the minimum limit concentration among the regulations consulted, except for Cu in P1. Likewise, the FBCwater and FBCsediment of As and Cd were among the highest values. It was found that Cu in T. chocolata was positively correlated with Sb, As, Co, Cu, Mg, Ag, and V in sediment; on the other hand, the Hg in T. chocolata was negatively correlated with the Ca, Sr, Li, Mg, Mo, K and Na of the surface water. The results indicate that the consumption of T. chocolata from the bay of Callao would be a severe problem for people's health.