In urban areas, sewage discharge from households and industries is a major contributor to water pollution, releasing harmful bacteria, chemicals, and nutrients into water bodies.

Pesticides used in agriculture can contaminate water sources through runoff, leaching, and spray drift, posing risks to aquatic ecosystems and human health.

Water pollution degrades aquatic habitats by reducing oxygen levels, altering pH, and introducing toxic substances, leading to loss of biodiversity, reduced fish populations, and disruption of ecosystem functioning.

Nitrogen, primarily from fertilizers and sewage, is a major contributor to eutrophication, a process where excessive nutrient enrichment leads to algal blooms, oxygen depletion, and disruption of aquatic ecosystems.

Oil tanker accidents, often caused by human error or mechanical failures, are the leading cause of oil spills in marine environments, resulting in significant ecological damage and economic losses.

Best management practices (BMPs) in agriculture include reducing fertilizer application rates, using organic fertilizers, and implementing soil conservation measures to minimize nutrient runoff and water pollution.

Artificial wetlands are designed to mimic natural wetlands and function as natural filters, removing pollutants from wastewater through biological and physical processes.

Water conservation measures, such as using water-efficient appliances, fixing leaks, and reducing outdoor water use, help minimize water consumption and reduce the amount of wastewater generated.

Wastewater treatment plants are designed to remove pollutants, such as organic matter, nutrients, and pathogens, from wastewater before it is discharged into the environment.

Riparian buffer zones, consisting of trees and vegetation along riverbanks, help filter pollutants from runoff, stabilize riverbanks, and provide habitat for wildlife.

Industrial activities generate a variety of waste products, including chemicals, heavy metals, and solvents, which can be discharged into water bodies, causing pollution.

Stormwater management practices, such as green infrastructure and detention ponds, help collect and treat stormwater runoff, reducing the amount of pollutants entering water bodies.

Water pollution can contaminate drinking water sources with harmful bacteria, viruses, and chemicals, increasing the risk of waterborne diseases such as cholera, typhoid, and dysentery.

Reducing the use of plastics and disposable products helps minimize plastic pollution in water bodies, preventing harm to aquatic life and reducing the risk of microplastic ingestion.

Water quality standards set limits on the concentration of pollutants allowed in water bodies, ensuring the protection of human health and aquatic ecosystems.