As this is one of your body paragraph, I think you should focus on one consequence of pollution and waste. For example, you can choose health-related problems for this paragraph and deterioration of life quality for the other paragraph.
For one thing, residents could suffer from water-related disease by drinking contaminated water. After drinking the polluted water, it may give rise to healthy problem such as diarrhea or fever.
You can merge these two sentences: For instance, residents could suffer from water-related diseases due to drinking contaminated water, such as diarrhea or fever.
As a result, putting a great deal of energy on migration makes individuals feel their life quality deprived.
This is not convincing enough and I feel that it is irrelevant to the aforementioned things.
Hope this helps!