| Autor: |
Gerges F; Department of Civil and Environmental Engineering, Princeton University, Princeton, New Jersey 08544, United States., Llaguno-Munitxa M; Louvain Research Institute of Landscape, Architecture, Built Environment, UCLouvain, Place du Levant 1, Ottignies-Louvain-la-Neuve 1348, Belgium., Zondlo MA; Department of Civil and Environmental Engineering, Princeton University, Princeton, New Jersey 08544, United States., Boufadel MC; Center for Natural Resources, Department of Civil and Environmental Engineering, New Jersey Institute of Technology, University Heights, Newark, New Jersey 07102, United States., Bou-Zeid E; Department of Civil and Environmental Engineering, Princeton University, Princeton, New Jersey 08544, United States. |
| Jazyk: |
angličtina |
| Zdroj: |
Environmental science & technology [Environ Sci Technol] 2024 Apr 09; Vol. 58 (14), pp. 6313-6325. Date of Electronic Publication: 2024 Mar 26. |
| DOI: |
10.1021/acs.est.4c00783 |
| Abstrakt: |
Urban air quality persists as a global concern, with critical health implications. This study employs a combination of machine learning (gradient boosting regression, GBR) and spatial analysis to better understand the key drivers behind air pollution and its prediction and mitigation strategies. Focusing on New York City as a representative urban area, we investigate the interplay between urban characteristics and weather factors, showing that urban features, including traffic-related parameters and urban morphology, emerge as crucial predictors for pollutants closely associated with vehicular emissions, such as elemental carbon (EC) and nitrogen oxides (NO x ). Conversely, pollutants with secondary formation pathways (e.g., PM 2.5 ) or stemming from nontraffic sources (e.g., sulfur dioxide, SO 2 ) are predominantly influenced by meteorological conditions, particularly wind speed and maximum daily temperature. Urban characteristics are shown to act over spatial scales of 500 × 500 m 2 , which is thus the footprint needed to effectively capture the impact of urban form, fabric, and function. Our spatial predictive model, needing only meteorological and urban inputs, achieves promising results with mean absolute errors ranging from 8 to 32% when using full-year data. Our approach also yields good performance when applied to the temporal mapping of spatial pollutant variability. Our findings highlight the interacting roles of urban characteristics and weather conditions and can inform urban planning, design, and policy. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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