Trace and heavy metals in San Andres Lagoon, Tamaulipas, Mexico

Abstract Concentrations of trace and heavy metals (Cd, Co, Cu, Fe, Mn, Ni, Zn, and Pd) were determined in San Andres Lagoon, Tamaulipas, Mexico at eleven stations in four seasons: Rain-84; North; Dry; and Rain-85. In Rain-84, we found higher concentrations of these metals (except iron) than in other seasons. Cobalt was not detected in this lagoon water. The results are compared with metals concentrations in estuarine water in Mexico and Terminos Lagoon water and are briefly discussed. Metals concentrations were higher than reported values in the North Pacific water.