Odor Pollution Control for Various Odor Emission Sources in Japan

Since the Law of Offensive Odor Control was enacted, many enterprises have made efforts to prevent odor nuisance. Odor survey was conducted at each factory and characteristics of odor emission for each kind of business were made clear. And many researches and developments have been carried out to confirm reliable technique. In order to remove odorants from exhaust gas, deodorizing plants have been installed at various emission sources gradually. Much information for odor control could have been stored up for these 30 years. In this paper, an outline of odor pollution control at various emission sources in Japan is introduced, that is, a number of newly installed deodorization facility, characteristics of odor emission from each type of business, efficiency of deodorizing equipment, recent trend of the development.