Types of Water Pollutants?

Unfortunatley there is a multitude of water pollutants that are both natural as well as man made. Although this is the case, most water polutants are in fact man made. Some examples of man made pollutants are inclusive of oil leaks, gasoline leaks from boats, and people throwing their trash from boats into the water as well. Water pollutants that are natural are pollutnts caused by secretions from plants and animal waste.