The once clear river became polluted after the factory expanded.

The factory has been polluting the river with chemical waste for years.

The polluting factory was shut down after the inspection.

The factory polluted the river last summer, killing many fish.

After the factory accident, officials recorded several pollutions affecting local waterways.

The research team examined the pollutional effects of the new industrial complex on local waterways.

The government launched a task force to address soil pollution affecting farmland near the industrial zone.

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.

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