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A novel multi-model data-driven ensemble approach for the prediction of particulate matter concentration

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Abstract

Accuracy in the prediction of the particulate matter (PM2.5 and PM10) concentration in the atmosphere is essential for both its monitoring and control. In this study, a novel neuro fuzzy ensemble (NF-E) model was proposed for prediction of hourly PM2.5 and PM10 concentration. The NF-E involves careful selection of relevant input parameters for base modelling and using an adaptive neuro fuzzy inference system (ANFIS) model as a nonlinear kernel for obtaining ensemble output. The four base models used include ANFIS, artificial neural network (ANN), support vector regression (SVR) and multilinear regression (MLR). The dominant input parameters for develo** the base models were selected using two nonlinear approaches (mutual information and single-input single-output ANN-based sensitivity analysis) and a conventional Pearson correlation coefficient. The NF-E model was found to predict both PM2.5 and PM10 with higher generalization ability and least error. The NF-E model outperformed all the single base models and other linear ensemble techniques with a Nash-Sutcliffe efficiency (NSE) of 0.9594 and 0.9865, mean absolute error (MAE) of 1.63 μg/m3 and 1.66 μg/m3 and BIAS of 0.0760 and 0.0340 in the testing stage for PM2.5 and PM10, respectively. The NF-E could improve the efficiency of other models by 4–22% for PM2.5 and 3–20% for PM10 depending on the model.

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Data availability

Data for the study is available and can be found at https://uk-air.defra.gov.uk/data/maryleboneroad.

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Code availability

Matlab 2019a was used for conducting the study and is available.

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Contributions

The authors’ contribution to the paper is as follows: study conception and design: VN, IKU, HG; analysis and interpretation of results: IKU, VN; draft manuscript preparation: VN, IKU, HG. All authors reviewed the results and approved the final version of the manuscript.

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Correspondence to Ibrahim Khalil Umar.

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The authors declare no competing interests.

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Highlights

• Accuracy in the prediction of PM2.5 and PM10 concentration is essential for both its monitoring and control.

• Performance of 4 data-driven models for prediction of PM2.5 and PM10 was evaluated and compared.

• For an enhanced modelling performance, a neuro fuzzy ensemble approach was developed.

• The ensemble model could improve the efficiency of other models by 4–22% for PM2.5 and 3–20% for PM10 depending on the model.

• Nonlinear dependencies between the potential inputs and the particulate matter were used for dominant input selection.

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Umar, I.K., Nourani, V. & Gökçekuş, H. A novel multi-model data-driven ensemble approach for the prediction of particulate matter concentration. Environ Sci Pollut Res 28, 49663–49677 (2021). https://doi.org/10.1007/s11356-021-14133-9

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  • DOI: https://doi.org/10.1007/s11356-021-14133-9

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