Sewage and wastewater carries many bacteria and diseases. These bacteria can cause disease like diarrhea, fever, cramps, and sometimes vomiting, headache, weakness, or loss of appetite.
The effects of sewage on the environment are largely negative. It needs to be properly treated before it can be disposed of, usually into the ocean.
There are two problems,
If sewage is only partially treated before it is disposed of, it can contaminate water and harm huge amounts of wildlife.
Secondly, leaking or flooding can cause completely untreated sewage to enter rivers and other water sources, causing them to become polluted.
Learn more about the effects of sewage here,
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