What are common sources of water contamination?

Agricultural runoff and industrial discharge are significant sources of water contamination due to the pollutants they introduce into water bodies. Agricultural runoff often contains fertilizers, pesticides, and herbicides that can lead to nutrient pollution, causing harmful algal blooms and degrading water quality. Industrial discharge can introduce heavy metals, chemicals, and waste products that may be toxic to aquatic life and humans. Understanding these sources is crucial for implementing effective water management practices and protecting public health and the environment. In contrast, mineral deposits and natural springs typically contribute to water quality rather than contamination, rainwater and snowmelt are generally clean sources unless they pass through contaminated areas, and rain gardens and wetlands act as natural filtration systems to improve water quality rather than contaminate it.