The neglected wetland self-polluted after years of unchecked runoff and algae growth.

Urban factories, often labeled as self-polluters, have been pressured to adopt cleaner technologies.

The self-polluter left toxic runoff on his fields that eventually ruined his harvest.

When left unchecked, the chemical pond self-pollutes, creating hazardous fumes that alarm nearby residents.

Every summer, the pond kept self-polluting despite the community's cleanup efforts.

Victorian manuals often warned that self-pollution could lead to weakness and illness.

Victorian pamphlets warned young men that idle curiosity could lead them to self-pollute, damaging both body and mind.