Mathematical models in the marine environment can be grouped into several classes. These models may be splitted into physical, chemical and toxicological models. Further they may be classified by their geographical extension, their accuracy and/or amount of input data needed. This paper gives a brief discusson of the main classes of models.We have used three different models to investigate transport and fate of chemicals in the aquatic environment. In this paper the models FEQUM, EXAMS and QWASI are presented, their characteristics explained and a comparison of the models is made.The three models have been applied to the Norrsundet area. Norrsundet is a heavily polluted bay on the eastcoast of Sweden. The pollution is mainly due to a kraft mill located in the area. The models were calibrated using data on chloroform in wastewater, and tested on four chlorophenolics. All models give satisfactory results for the compounds investigated exept for Tetrachlorocatechol. Correlation coefficients between calculated and measured concentrations vary from 0.86 to 0.97. The results obtained for tetrachlorocatechol are probably due oxidition of TeCC before reaching the first compartment.
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- Evaluation of Some Chemical Fate and Transport Models. A Case Study on the Pollution of the Norrsundet Bay (Sweden)
B. F. Aschjem
- Springer Netherlands
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