ENVR 248 |
| A multimedia environmental mathematical model is developed and illustrated to describe the environmental fate of phenanthrene in Lanzhou Reach of Yellow River. Expressions are written in the form of fugacity equations with a common D parameter, for processes of advective flow, volatilization, sediment resuspension, deposition, burial wet and dry atmospheric deposition and degrading reactions. Steady state solutions of the equations are presented; the changes of phenanthrene in Lanzhou Reach are also simulated by using Matlab 6.5. The contents of phenanthrene in air, water and suspending substances will be steady in 45,000 hours, while it takes about 70,000 hours for phenanthrene to be steady in bottom sediment. The final fugacities of phenanthrene in air, water, suspending substance and bottom sediment in Lanzhou Reach are 0.0473Pa, 0.0450Pa, 0.0464Pa and 0.1365Pa respectively. The total mass of phenanthrene in the corresponding environmental media is 23,651kg, 2,018kg, 822kg and 4,806kg, with the corresponding percent of 76%, 6%, 3% and 15%. |
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Persistent, Bioaccumulative, Toxic Chemicals
6:00 PM-8:00 PM, Wednesday, 13 September 2006 Moscone Center -- Hall D, Poster
Division of Environmental Chemistry |