GIS-based water quality index of marine water along residential, commercial and recreational areas in Opol, Misamis Oriental, Philippines
By: Mae Oljae P. Canencia, Cordulo P. Ascaño II
Key Words: GIS, Marine, Water quality, Philippines
J. Bio. Env. Sci. 9(5), 117-128, November 2016.
This study dealt with the application of Geographic Information System (GIS) vis a vis water quality index of marine water ecosystem in Opol, Misamis Oriental. Specifically this study aimed on (a) establishing GIS maps on wide range distribution of physicochemical parameters of water (b) determining the physicochemical parameters of water along residential, commercial and recreational areas and (c) comparing the values of physicochemical to the standards set by Department of Environment and Natural Resources (DENR) Philippines. There were three (3) sampling stations categorized as residential, commercial and recreational areas and sampling was conducted within three (3) months during Amihan (northeast monsoon) in the Philippines. Research design used was a combination of descriptive, qualitative and evaluative design. Results showed Relative Humidity (RH), air temperature, Dissolved Oxygen (DO), water temperature, density, conductivity, turbidity, salinity, and Total Suspended solids (TDS) were prevalent in recreational area, while DO and Biochemical Oxygen Demand (BOD) in commercial area, and only pH and BOD in residential area. Statistical analysis showed six (6) and eight (8) of the parameters in between subjects and within-subjects showed significant difference, respectively. However, one-sample t-test showed that the three sites are equal and not statistically significant. Hence, GIS is an effective tool to assess area for possible distribution of species and vulnerability to polluted waters.