Morrisonville was a small town in Iberville Parish, Louisiana, United States that was contaminated with industrial pollution from a nearby Dow Chemical Company vinyl chloride factory.

[3] To avoid lawsuits, Dow decided to buy up the town and move its residents away to create a buffer zone around the factory.

[3][5] In 1989, just before the release of a federal report into toxic emissions from the factory, Dow announced that it was going to buy up all the homes and land in Morrisonville, and that if the residents refused their property would be worthless.

[5] All that now remains is the graveyard of the former Nazarene Baptist Church and an open-sided prayer site, built of wood, provided by Dow for family members who return to visit the graves.

[citation needed] The large number of petrochemical plants producing PVC in the surrounding area, an 80-mile (130 km) stretch between Baton Rouge and New Orleans, first led to it being known as the 'Chemical Corridor' and later as Cancer Alley, and many other communities in the area have been similarly affected by groundwater pollution and other toxic emissions.