大阪湾における船舶の航行実態と大気汚染物質の排出負荷

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In September 1997, the IMO MEPC (Marine Enviroment Protection Committee) adopted the new International Convention on the regulation of air pullutants discharge from ships. According to the convention, nitorogen oxides NOx, sulfur oxides SOx, and other air pollutants such as ozone depleting substances will be being controlled for the ships newly built after the year of 2000. In responding to the international situation, several investigations have been reported recently on the contribution of air pollutants discharged from ships in the domestic coastal region. The authors also reported previously on the NOx and SOx discharge from ships in the Osaka-bay. Since then, however, the sea traffic situation has been changed due to some events such as the opening of Kansai Airport, so the discharge of NOx, SOx from ships in the Osaka-bay has been investigated here again. The investigation is carried out by three steps. The first is to investigate the OD-table of all ships sailing in the Osaka-bay. The second is to study the emission factor of each ships of various kind at various operating conditions, and the third is to estimate the discharge amount from all ships. The results reveal that the amount discharged from ships is not small, and both amounts of NOx and SOx reach to the comparable level with the discharge amount from land area. The results suggest therefore that some measurs are needed for controlling the air pollutants discharged from ships in order to improve the air pollution in the Osaka-bay area.
社団法人日本航海学会の論文
1998-09-25

大阪湾における船舶の航行実態と大気汚染物質の排出負荷

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