Water contamination occurs when harmful substances, such as chemicals, bacteria, or heavy metals, enter water bodies, making the water unsafe for drinking, swimming, or irrigation. Common sources of contamination include industrial discharges, agricultural runoff, and sewage leaks. This pollution can harm aquatic life and disrupt ecosystems. Preventing water contamination is crucial for public health and environmental protection. Measures such as proper waste disposal, using eco-friendly farming practices, and regular monitoring of water quality can help reduce the risk. Communities and governments often work together to implement regulations and clean-up efforts to safeguard water resources.