Journal of Environmental Hydrology
ISSN 1058-3912
Electronic journal of the International Association
for Environmental Hydrology
On the World Wide Web at http://www.hydroweb.com
JEH Volume 9 (2001), Paper 16, November 2001
Posted November 8, 2001
MULTIVARIATE ANALYSIS FOR IDENTIFYING THE GOVERNING FACTORS OF GROUNDWATER
QUALITY
N. Subba Rao
J. Prakasa Rao
D. John Devadas
K. Srinivasa Rao
C. Krishna
Hydrogeology Laboratory, Department of Geology, Andhra University,
India
ABSTRACT
The R-mode factor analysis technique has been successfully applied
to understand the processes responsible for the decline of groundwater
quality in Guntur urban area, Andhra Pradesh, India. Factor I is dominated
by TDS, Na, Cl, SO4 and K, factor II by pH and CO3
, and factor III by NO3 variables. They measure salinity, hardness,
alkalinity and pollution, and are interpreted as representing the role
of climate, water-rock interaction, land use and anthropogenic sources.
Reference: Subba Rao, N., J. Prakasa Rao, D.
John Devadas, K. Srinivasa Rao, and C Krishna;
Multivariate Analysis
for Identifying the Governing Factors of Groundwater Quality, Journal
of Environmental Hydrology, Vol. 9, Paper 16, November 2001.
CONTACT:
N. Subba Rao
Hydrogeology Laboratory
Department of Geology
Andhra University
Visakhapatnam 530 003
India
Email:subbarao@usa.net
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