Sources of water pollution

The main sources of pollution are all resulted from the disposal of chemical substances coming from medical, industrial and household waste, chaotic agricultural fertilizers disposal and accidental oil spills that pollute the water to a large extent.

Major water pollutants that affect human health:

• Numerous infectious agents that contaminate the water through sewage, human waste and animal excreta.
• Radioactive waste resulted from mining activities, power plants or natural sources.
• Chemical substances like pesticides, plastic, oil, detergents, etc.

Major water pollutants that affect the ecosystem only:

• Plant nutrients like phosphates and nitrates that form various chemical fertilizers, sewage, and manure.
• Oxygen-demanding manures and agricultural waste resulted from sewage and agricultural run-offs.
• Sediments in the soil (silt) following soil erosion, and heated waters used in several industries and power plants.

Bibliography:

https://www.environmentalpollutioncenters.org/water/