Assessment of pollutants Emission from ships exerting on large-scale air pollution containing Osaka bay area.

Marine traffic in Osaka bay is much intensified and large emManagement amounts of SOイD2x从ships are released but there is no regulation about atmosphere is no regulation about atmospheric pollutants emManagement from ships。在本文中，我们调查了大湾地区的运载火箭、工厂和船舶对SO-D2 x-D2、NO-D2 x-D2和HC的排放量，并估计了大气污染物集中的船舶排放的影响，使用中间尺度模型来预测风场，并将集中预测模型包括干燥沉积和光化学反应模型。the emManagement amounts of SOイイD2xイイD2 and NOイD2xイエD2 from ships were about 30% of the Total emManagement amounts， respectively。使用这些发射数据，大气层污染物的浓缩物被模拟为一个晴朗的夏天，当高氧化物浓缩物被测量到几个观测站，并与观察到的数据相比较。在模拟值和观察值之间也可以看到一些差异，以及同意合理的每日变异。下一步，数字模拟是在没有船舶发射量的情况下进行的，并估计了大气污染物集中的船舶发射量的影响。It was found that ship emManagement raised SOイイD22イイD2 ，NOイD22イD2 and NO concentration not only in the shore areas but also in 40 km inland。

Marine traffic in Osaka bay is much intensified and large emission amounts of SOィイD2xィエD2 and NOィイD2xィエD2 from ships are released but there is no regulation about atmospheric pollutants emission from ships. In this paper, we investigate the emission amounts of SOィイD2xィエD2, NOィイD2xィエD2 and HC from vehicles, factories and ships in Osaka bay area and estimate the influence of ship emission on the atmospheric pollutants concentration, using the mesoscale model to predict the wind fields, the concentration prediction model including the dry deposition, and photochemical reaction model.In Osaka bay area, the emission amounts of SOィイD2xィエD2 and NOィイD2xィエD2 from ships were about 30% of the total emission amounts, respectively. Using these emission data, the atmospheric pollutants concentrations were simulated on a summer fine day when high oxidant concentrations were measured at several observatories and were compared with the observed data. Although some differences were seen between the simulated and observed values, the diurnal variation agreed reasonably. Next, the numerical simulation was carried out without ship emission amounts and estimated the influence of ship emission the atmospheric pollutants concentrations. It was found that ship emission raised SOィイD22ィエD2 ,NOィイD22ィエD2 and NO concentration not only in the shore areas but also in 40km inland.