Distributions of polycyclic aromatic hydrocarbons and alkylated polycyclic aromatic hydrocarbons in Osaka Bay, Japan

作者：Miki Shizuho; Uno Seiichi^*; Ito Kazuki; Koyama Jiro; Tanaka Hiroyuki

来源：Marine Pollution Bulletin, 2014, 85(2): 558-565.

DOI：10.1016/j.marpolbul.2014.04.004

• Alkylated polycyclic aromatic hydrocarbons
• Osaka Bay
• Polycyclic aromatic hydrocarbons
• Source recognition

Contaminations in sediments by polycyclic aromatic hydrocarbons (PAHs) and alkylated PAHs were investigated at 44 sites in Osaka Bay, Japan. Concentrations of total PAHs and alkylated PAHs were in the range 6.40-7800 ng/g dry weights and 13.7-1700 ng/g dry weights, respectively. The PAH concentrations tended to be higher along the shoreline in the vicinities of big ports, industrialized areas, and densely populated regions such as the cities of Osaka and Robe. The major sources appeared to be pyrogenic or both pyrogenic and petrogenic at most of the sites. PAH concentrations were remarkably high at a site near Robe, where the concentrations of dibenzo(a,h)anthracene and benzo(g,h,i)perylene exceeded the effects-range-medium concentration and eight PAHs were above the corresponding effects-range-low concentrations. Those PAHs may have been derived from the great fire associated with the large earthquake in 1995.

• 出版日期2014-8-30