Occurrence and aquatic ecological risk assessment of typical organic pollutants in water of Yangtze River estuary
The occurrence and distribution of organic pollutants were investigated and their initial aquatic ecological risks were assessed in water of the Yangtze River Estuary (YRE).A total of 18 samples were collected from South Branch of YRE during the flood season in August 2012.Out of 956 organic compounds,23 organic pollutants were detected by GC-MS and NAGINATATM software which were dominated by phthalate esters (PAEs),petroleum hydrocarbons (PHCs) and substituted benzenes.The total concentration of detected 23 organic pollutants varied from 0.585 to 53.7 μg/L in the studied sites.Moreover,the total amounts of PAEs (ΣPAEs),PHCs (ΣPHCs) and substituted benzenes (Σsubstituted benzenes) were in the range of 0.184-53.344 μg/L,0-0.164 μg/L,and 0.196-1.559 μg/L,respectively.The study revealed that PEC/PNEC ratios of 8 organic pollutants were higher than (1) (PEC:Predicted environmental concentration; PNEC:Predicted no effect concentration),while 3 of them Bis(2-ethylhexyl)phthalate,octadecane and nonadecane were found to be >100 and the remaining organic pollutants including diisobutyl phthalate,tridecane,dihexyl phthalate,methyl palmitate and methyl stearate ranged from 1 to 100.These results indicated significant ecological risks of the specific organic pollutants to the aquatic environment of YRE.
Yangtze River Estuary (YRE) NAGINATA ecological risk assessment PEC/PNEC
Xu Du Xuehua Li Tianlie Luo Naoki Matsuur Kiwao Kadokami Jingwen Chen
Key Laboratory of Industrial Ecological and Environmental Engnieering(MOE), School of Environmental Key Laboratory of Industrial Ecological and Environmental Engnieering(MOE), School of Environmental Faculty of Environmental Engineering, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyu
国际会议
2013 International Symposium on Environmental Science and Technology(2013环境科学与技术国际会议)
大连
英文
258-263
2013-06-04（万方平台首次上网日期，不代表论文的发表时间）