Air Quality Modeling with the Use of Regression Neural Networks

Szymon Hoffman (), Mariusz Filak and Rafał Jasiński
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Szymon Hoffman: Faculty of Infrastructure and Environment, Czestochowa University of Technology, 69 Dabrowskiego St., 42-200 Czestochowa, Poland
Mariusz Filak: Faculty of Infrastructure and Environment, Czestochowa University of Technology, 69 Dabrowskiego St., 42-200 Czestochowa, Poland
Rafał Jasiński: Faculty of Infrastructure and Environment, Czestochowa University of Technology, 69 Dabrowskiego St., 42-200 Czestochowa, Poland

IJERPH, 2022, vol. 19, issue 24, 1-33

Abstract: Air quality is assessed on the basis of air monitoring data. Monitoring data are often not complete enough to carry out an air quality assessment. To fill the measurement gaps, predictive models can be used, which enable the approximation of missing data. Prediction models use historical data and relationships between measured variables, including air pollutant concentrations and meteorological factors. The known predictive air quality models are not accurate, so it is important to look for models that give a lower approximation error. The use of artificial neural networks reduces the prediction error compared to classical regression methods. In previous studies, a single regression model over the entire concentration range was used to approximate the concentrations of a selected pollutant. In this study, it was assumed that not a single model, but a group of models, could be used for the prediction. In this approach, each model from the group was dedicated to a different sub-range of the concentration of the modeled pollutant. The aim of the analysis was to check whether this approach would improve the quality of modeling. A long-term data set recorded at two air monitoring stations in Poland was used in the examination. Hourly data of basic air pollutants and meteorological parameters were used to create predictive regression models. The prediction errors for the sub-range models were compared with the corresponding errors calculated for one full-range regression model. It was found that the application of sub-range models reduced the modeling error of basic air pollutants.

Keywords: air quality; air monitoring; air pollutants; regression; prediction; prediction error; artificial neural networks (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
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