Donghao Li
Korea Ocean
Research and Development Institute
In order to understand the behavior of nonylphenol
(NP) in Han River, water, suspended particle and sediment samples were analyzed
during summer, autumn and winter. Concentrations of nonylphenol
in water ranged from 23.2 to 187.6 ng/L, in suspended
particle from 6.8 to 190.8 ng/L
and in sediment from 25.4 to 932.0 ng/g dry wt. An
increasing trend in the concentration is noticed in all matrices along down the
river. In case of water and suspended particle, concentrations were higher in
warmer season than in colder season. Percentage of nonylphenol
in the suspended particle phase decreased from 67 to 28% with decreasing
temperature in water. A reasonable correlation (R2=0.63) was
obtained for water and suspended particle. The partition coefficient Log Kp is 4.8. No seasonal variation of the
concentration in sediment is noticed in this study.