grounds and threatening winter supplies of the succulent shellfish." (http://sol.oc.ntu.edu.tw/omisar/cbi/mitigatn.htm) In addition, pollutant inflow decreased, due to the expansion of sewage systems. In particular, BOD level in rivers improved considerably. On the other hand, COD level in Osaka Bay has improved only slightly. Currently, because of the population density in Japan, household wastewater accounts for an increasing percentage in the pollutant that flows into Osaka Bay.
             These are only two elements that affect the environmental problematic in Japan. These factors play a significant role in policy production within the Japanese government but unfortunately continue the epic rivalry between industrialization and the environmental problematic. This is why such laws like The Basic Environmental Law and the Air Pollution Control Law must be enforced at greater lengths to sustain the industrial development.
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