A trio of environmental scientists and city planners from the University of California, Berkeley, the University of North Carolina, Chapel Hill, and the University of Miami has found that as motorists slowly make the jump from gasoline-powered vehicles (GVs) to electric-powered vehicles (EVs), people living in the same general area experience different levels of change in air quality. The researchers found air quality tends to improve in higher-income neighborhoods and remains the same or grows worse in poor neighborhoods.