Step 1: Tackle water and air pollution directly.
Installing Effluent Treatment Plants before releasing wastewater, and fitting chimneys with scrubbers or electrostatic precipitators, cuts down water and air pollution from factories.
Step 2: Manage waste and technology.
Proper collection, recycling and safe disposal of solid and hazardous waste, along with switching to cleaner, energy efficient production technology, reduces the pollution load further.
Step 3: Use green cover and law.
Planting green belts around industrial areas absorbs pollutants, and strict enforcement of laws like the Water Act and Air Act ensures industries actually follow these standards.
So treating waste, controlling emissions, adopting cleaner technology and enforcing environmental laws together bring down industrial pollution.