ICETT 四日市公害について知ろう Outline of Japan’s Industrial Pollution Abatement Approaches to Air pollution Control (Case Study-1) Yokkaichi City, Mie prefecture (1)Approaches of Enterprises at Early Stages Figure 2 – 6 Figure 2 – 6 Figure 2-6 Sulfur Volume and Average Sulfur Content of Heavy Oil for Domestic Consumption