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Groundwater quality assessment in urban environment
Oişte, A.M.
Abstract
The assessment of environmental effects generated
by urban areas (with various activities as agriculture,
industry, human activities) on groundwater quality became
essential for the use and conservation of the water
resources. The main objective was to apply a water quality
index to the groundwater sources using the specific methodology,
establishing the suitability for drinking for
groundwater. Water resources were monitored in October
2011, the samples were collected from 22 points for
groundwater, and more parameters were analyzed: pH,
electrical conductivity, turbidity, oxygen regime, hardness,
alkalinity, nutrients regime (nitrates, ammonium, phosphates)
which were considered important and utilized for
water quality index computation that reveal poor quality
for groundwater. The oxidability should be included in
computation formula and the final results used for water
management, taking into consideration the limits of the
current model. Multivariate statistical analysis was used to
indicate the influence of urban area on the quality of
groundwater resources. Results of the analysis highlight an
influence of geology and a contamination of agricultural
origin.
Keywords
Water resources; Urban area; GWQI; Multivariate statistical analysis
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