%0 Journal Article
%T ASSESSING NITRATE CONTAMINATION ON GROUNDWATER SOURCES IN AN AGRO-ECOSYSTEM IN LAGUNA, PHILIPPINES
%A MIA ANN SARA C. MENDOZA
%A GLENN L. SIA SU
%A MARIA LILIBETH L. SIA SU
%A ELENA M. RAGRAGIO
%J Journal of Applied Technology in Environmental Sanitation
%D 2012
%I Sepuluh Nopember Institute of Technology
%X This study assessed the nitrate contamination in groundwater sources in an agro-ecosystem situated in Laguna, Philippines. Grab water samples were obtained in groundwater sources situated in an agro-ecosystem in Laguna, Philippines, and analyzed for nitrate-nitrogen. Results of the study showed that the groundwater sources had a mean   SEM nitrate-nitrogen concentrations for all sites of 5.83   3.76 ppm. No significant differences on the obtained nitrate-nitrogen on the waters from the well were observed (p > 0.05) except for the significant differences in the seasons, availability of septic tanks and the usage of the wells (p < 0.05). All the water resources tested for nitrate-nitrogen concentrations were below the standards. Continuous water monitoring of the groundwater resources is necessary to safeguard people¡¯s well-being from the effects brought about by the utilization of contaminated water sources.
%K Domestic use
%K livestock
%K nitrate
%K water resources
%U http://trisanita.org/jates/atespaper2012/ates29v2n4y2012.pdf