Surface and Groundwater Quality in the Northeastern Region of Buenos Aires Province, Argentina.

GALINDO, GRISELDA; SAINATO, CLAUDIA; DAPEÑA, CRISTINA; FERNANDEZ TURIEL, JOSÉ LUIS; GIMENO, DOMINGO; POMPOSIELLO, MARIA CRISTINA; PANARELLO, HECTOR

JOURNAL OF SOUTH AMERICAN EARTH SCIENCES

Elsevier Ltd.

Año: 2007 vol. 23 p. 336 - 345

0895-9811

This work studies the water quality of the Pergamino–Arrecifes River zone in the Rolling Pampa, northeast Buenos Aires Province, Argentina. Temperature, pH, specific conductivity, Na, K, Mg, Ca, SO42-, Cl-, HCO3-, NO3-, Si, Ag, Al, As, B, Ba, Be, Br, Cd, Co, Cr, Cu, Fe, Hg, Li, Mn, Mo, Ni, P, Pb, Se, Tl, U, V, Zn, and the environmental stable d18O and d2H isotope ratios were determined in 18 sampling stations. Natural and anthropogenic features influence surface and groundwater quality. Point pollution sources (septic wells and other domestic and farming effluents) increase the nitrate concentration. The values of pH, NO3-, Al, As, B, Fe, and Mn exceed the respective Argentine reference thresholds in different sampling stations for human drinking water; B, Mo, U, and V for irrigation; and V and Zn for cattle consumption.