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Coupling of quantile regression into boosted regression trees (BRT) technique in forecasting emission model of PM10 concentration

Shaziayani, WN, Ul-Saufie, AZ, Ahmat, H and Al-Jumeily, D (2021) Coupling of quantile regression into boosted regression trees (BRT) technique in forecasting emission model of PM10 concentration. Air Quality, Atmosphere & Health. ISSN 1873-9318

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Abstract

Air pollution is currently becoming a significant global environmental issue. The sources of air pollution in Malaysia are mobile or stationary. Motor vehicles are one of the mobile sources. Stationary sources originated from emissions caused by urban development, quarrying and power plants and petrochemical. The most noticeable contaminant in the Peninsular of Malaysia is the particulate matter (PM10), the highest contributor of Air Pollution Index (API) compared to other pollution parameters. The aim of this study is to determine the best loss function between quantile regression (QR) and ordinary least squares (OLS) using boosted regression tree (BRT) for the prediction of PM10 concentration in Alor Setar, Klang and Kota Bharu, Malaysia. Model comparison statistics using coefficient of determination (R2), prediction accuracy (PA), index of agreement (IA), normalized absolute error (NAE) and root mean square error (RMSE) show that QR is slightly better than OLS with the performance of R2 (0.60–0.73), PA (0.78–0.85), IA (0.86–0.92), NAE (0.15–0.17) and RMSE (9.52–22.15) for next-day predictions in BRT model.

Item Type: Article
Uncontrolled Keywords: 1117 Public Health and Health Services
Subjects: T Technology > TD Environmental technology. Sanitary engineering
Divisions: Civil Engineering & Built Environment
Publisher: Springer
Date Deposited: 27 May 2021 07:54
Last Modified: 27 May 2021 08:00
DOI or Identification number: 10.1007/s11869-021-01045-3
URI: https://researchonline.ljmu.ac.uk/id/eprint/15069

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