VARIABILITY OF GROUNDWATER QUALITY PARAMETERS FROM PERIURBAN AREA OF TIMISOARA (ROMANIA)

摘要

In order to evaluate the quality of groundwater of periurban area of Timisoara, 6 shallow wells have been monitored. They are located at a distance of 15 km around the center of the city. Monitoring was done over 3 years in the period 2007-2009 by taking samples at intervals of three months. This paper presents the results of statistical analysis of the parameters taking in study: presence of nitrate, nitrite and ammonium ions. The results indicate nitrate contamination in four of the six sampling monitored points, on the other two points concentration was high but did not exceed the maximum allowed. Concentrations of nitrite and ammonium ions do not exceed threshold values for these parameters