Rivers near slums are badly polluted-->used for washing garbage and sewage disposal

Lack of a proper garbage disposal system -->dumping of garbage into open drains or outside houses

Contaminants from sewage may seep into groundwater and pollute nearby water sources

This will attract pests and generate a foul smell

Lack of access to safe drinking water-->people use contaminated water from polluted rivers

Using contaminated water-->diseases like cholera and dysentery

Lack of proper garbage disposal system--> improper disposal of garbage--> clogged drains and sewers
-->produces breeding ground for mosquitoes which cause malaria and dengue

Overcrowding will worsen the spread of such diseases

Slums are built on land without permission

Slum houses are often made of flammable materials like cardboard-->risk of fire is high

Fires will cause injuries, deaths and loss of property

Landslides can destroy and bury everything in its path

cause injuries, death and loss of property

Residents may be forced out of their homes anytime--> lack of sense of security