Pollution Levels

Engen and eThekwini housing department claim that the Barracks community were moved out of a major industrial hazardous area because of their close proximity to Engen oil refinery.  But they have been moved adjacent to a busy highway with high levels of lead and benzenes from the constant stream of heavy traffic.  Around them are paint factories which also emit fumes.  This area may be even worse for their health than where they once lived.  Why did it take 36 years to move this community from a major hazardous industrial zone?