Air Quality Management in Izmir Region of Turkey as Required by Clean Air Plans |
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Authors: | Muezzinoglu Aysen Elbir Tolga Bayram Abdurrahman |
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Affiliation: | (1) Dept. of Environmental Engineering, Yldz Technical University, 80750 Besiktas, Istanbul, Turkey (author for correspondence |
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Abstract: | Future (24 h later) daily ground level SO2 concentration in Istanbul was modeled and predicted using a new and powerful technique, Artificial Neural Networks (ANN) in the case of meteorological parameters as input variables. Results show that the trend of SO2 from higher values in winter to lower values in spring and summer, and again to higher values towards winter can be correctly represented by the neural networks. The model better predicted the lower SO2 values in spring and summer seasons when compared to higher values in winter season because of the pattern distribution in training data sets. Beside the amount of the database, the more the variation of the values of the parameters in their own ranges, the more the network learns the database. As a result of this study, considerably successful results were obtained when considering the complex and nonlineer structure of the atmosphere, which is the source of the database. |
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Keywords: | air pollution modeling artificial neuralnetworks multi layer perceptron |
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