Students will be able to list different sources of water pollution and understand which types of pollutants are produced by these sources. They will also be able to describe the effect of water pollution on aquatic life and humans.
Even wastewater that has been treated often contains high levels of biological contaminants, phosphates, nitrates and even some medications. Before treated wastewater can be released back into a water source, it has to meet certain guidelines regarding quality and level of contaminants. But accidents can happen and wastewater can be released without being treated at all.