Utilization of Water Quality Index in the Water Quality Analysis of the Gore angab Dam to Determine Suitability of Potential Aquaculture Site
Abstract:
The aim of this study was to explore the utilization of the Water Quality Index (WQI) in analyzing the water quality of Goreangab Dam in Windhoek, Namibia. The WQI provides an overall assessment of water quality by integrating multiple parameters and assigning a single numerical value. The primary objective was to determine the suitability of a potential aquaculture site in the area of the dam based on water quality analysis. To achieve this objective, water samples were collected from two sampling locations (P1 and P9) within Goreangab Dam. These samples were analyzed for various physical, chemical, and biological parameters, including temperature, pH, dissolved oxygen, nutrients, and salinity using standard laboratory techniques. The collected data was then used to calculate the WQI for each sampling point using a software called "Know Your H2O." The results of the analysis showed that the water quality varied at the two sampling points. Samples collected on May 16, 2023, at point 1 had a WQI score of 37, indicating poor water quality, while point 9 had a WQI score of 60, indicating medium water quality. On August 24, 2023, both points (1 and 9) had a WQI score of 42, indicating bad water quality. Based on these f indings, it can be concluded that the water in Goreangab Dam is not suitable for use in an aquaculture facility without proper treatment. The results highlight the importance of regular monitoring and mitigation measures to maintain suitable water quality for aquaculture practices. This study's findings have the potential to contribute to the development of sustainable aquaculture practices and the efficient utilization of water resources in the country.
