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Water quality management is fundamentally concerned with maintaining the chemical integrity of water so that it remains safe for drinking, agriculture, industry, and ecosystem sustainability. Chemical parameters serve as measurable indicators of contamination, pollution sources, and the overall suitability of water for different uses. These parameters reflect both natural geochemical processes and anthropogenic influences such as industrial discharge, agricultural runoff, urbanization, and improper waste disposal. Understanding these chemical characteristics is essential for preventing man-made disasters such as toxic contamination events, groundwater pollution, eutrophication, and large-scale public health crises. One of the primary chemical parameters of concern is pH, which indicates the acidity or alkalinity of water. The pH level influences chemical reactions, solubility of metals, and biological availability of nutrients and toxins. Water with low pH can be corrosive, leading to the leaching of heavy metals such as lead and copper from plumbing systems. High pH levels can reduce the effectiveness of disinfection processes and cause scaling in industrial systems. Sudden changes in pH may indicate chemical spills or industrial contamination, which can result in ecological damage and infrastructural degradation. Dissolved oxygen (DO) is another critical parameter, reflecting the capacity of water to support aquatic life. Although DO is influenced by physical _____ _____ ___ __________ _____ ____ ________ _____ ________ ____ __________ _________.
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