STATISTICAL ANALYSIS OF THE HORIZONTAL DISTRIBUTION CHARACTERISTICS OF SEDIMENT QUALITIES IN PORT OF NAGOYA

Abstract

 In order to grasp horizontal distribution characteristics of port and harbor sediments, we analyzed statistical characteristics of sediment quality data collected in Nagoya Port. Total 35 sediment quality items were categorized into three groups; Group 1 is mainly composed of the sediment physical property including organic compounds, Group 2 is composed of heavy metals, and the Group 3 contains PAHs. PAHs were further classified into four sub-groups, following their special distribution patterns. Statistical characteristics of their skewness and sharpness were compared their logK_ow. Relation of the distribution pattern and the physico-chemical characteristics of PAHs as well as estuarine gravity circulation currents were discussed.