Numerical Modeling of Air Pollutants Emitted by Waterway Transportation

作     者：Marilia Mitidieri Fernandes de Oliveira Nelson Francisco Favilla Ebecken Jorge Luiz Fernandes de Oliveira Marina Aires Marilia Mitidieri Fernandes de Oliveira;Nelson Francisco Favilla Ebecken;Jorge Luiz Fernandes de Oliveira;Marina Aires

作者机构：Center of Technology Federal University of Rio de Janeiro-Civil Engineering Postgraduate Program-COPPE/UFRJ Rio de Janeiro Brazil Geography Postgraduate Program Geoscience Institute of Fluminense Federal University-UFF Niterói Brazil Meteorology Postgraduate Program Geoscience Institute Department of Meteorology of Federal University of Rio de Janeiro-UFRJ Rio de Janeiro Brazil 

出 版 物：《Journal of Geoscience and Environment Protection》 (地球科学和环境保护期刊（英文）)

年 卷 期：2016年第4卷第6期

页      面：123-136页

学科分类：07[理学] 

主　　题：Maritime Transport Ship Emissions Air Pollution Meteorological Models Guanabara Bay 

摘      要：The world maritime transportation is suffering a large increase in recent years and as a result of this increased on global trade, there is a consequent increase in waterway transportation and demand for fossil fuels, resulting in emissions of air pollutants. Consequently, the impact of transport emissions on climate change was put on the list of priorities. It has a high fuel demand as a result of continuous use of main engines for propulsion, electricity and heat production. The highest exposure levels of air pollution are found in ports and near them because most of the world fleet is positioned in these areas. The port of Rio de Janeiro city, in the Southeast Brazilian coastal, is inserted in the Guanabara Bay (GB), where the breezes recirculate pollutants in Metropolitan Region of Rio de Janeiro (MRRJ). Therefore, the aim of this research was to use the Brazilian Regional Atmospheric Modeling System (BRAMS) to generate the wind fields in the MRRJ and to calculate the trajectories of pollutants emitted on GB related to the waterway transportation, using a 3D kinematic trajectories model. Results demonstrated that for the periods analysed, the Central and west areas in the coastal region of the Rio de Janeiro city were the local most affected in the summer. In winter the trajectories reached the cities of the Rio de Janeiro and Duque de Caxias. Both in summer and winter, the trajectories followed towards the South Atlantic Ocean in the morning. Conclusions about this study show the need of decision-making process for better management of waterway transportation sector, improving the harmful effects on air quality in cities located in coastal regions.