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    Título : Gradient boosting machine to assess the public protest impact on urban air quality
    Autor : Zalakeviciute, Rasa
    Rybarczyk, Yves
    Alexandrino, Katiuska
    Bonilla-Bedoya, Santiago
    Mejía, Danilo
    Bastidas, Marco
    Diaz, Valeria
    Fecha de publicación : 2021
    Editorial : Applied Sciences (Switzerland). Volume 11, Issue 24
    Resumen : Political and economic protests build-up due to the financial uncertainty and inequality spreading throughout the world. In 2019, Latin America took the main stage in a wave of protests. While the social side of protests is widely explored, the focus of this study is the evolution of gaseous urban air pollutants during and after one of these events. Changes in concentrations of NO2, CO, O3 and SO2 during and after the strike, were studied in Quito, Ecuador using two approaches: (i) inter-period observational analysis; and (ii) machine learning (ML) gradient boosting machine (GBM) developed business-as-usual (BAU) comparison to the observations. During the strike, both methods showed a large reduction in the concentrations of NO2 (31.5–32.36%) and CO (15.55–19.85%) and a slight reduction for O3 and SO2. The GBM approach showed an exclusive potential, especially for a lengthier period of predictions, to estimate strike impact on air quality even after the strike was over. This advocates for the use of machine learning techniques to estimate an extended effect of changes in human activities on urban gaseous pollution.
    URI : https://www.mdpi.com/2076-3417/11/24/12083
    http://repositorio.uti.edu.ec//handle/123456789/3159
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