Characterizing Traffic-Related Ultrafine Particles in Roadside Microenvironments: Spatiotemporal Insights from Industrial Parks
Abstract Ultrafine particles (UFPs; PM0.1) and black carbon (BC) were measured at different roadside microenvironments in the vicinity of the urban industrial park area. Simultaneous measurement campaigns were conducted at industrial roadside (IN), residential roadside (RS), and urban background (UB...
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| Format: | Article |
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Springer
2024-03-01
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| Series: | Aerosol and Air Quality Research |
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| Online Access: | https://doi.org/10.4209/aaqr.230295 |
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| author | Sultan F.I. Abdillah Sheng-Jie You Ya-Fen Wang |
| author_facet | Sultan F.I. Abdillah Sheng-Jie You Ya-Fen Wang |
| author_sort | Sultan F.I. Abdillah |
| collection | DOAJ |
| description | Abstract Ultrafine particles (UFPs; PM0.1) and black carbon (BC) were measured at different roadside microenvironments in the vicinity of the urban industrial park area. Simultaneous measurement campaigns were conducted at industrial roadside (IN), residential roadside (RS), and urban background (UB) throughout different seasons. Spatiotemporal variability as well as correlations between pollutants and confounding factors (traffic profiles and meteorological conditions) were analyzed. The observed average roadside UFPs particle number concentration (UFPs PNC) and BC concentrations were in the order of IN (38,000 ± 9,000 # cm−3 and 2,500 ± 600 ng m−3) > RS (25,000 ± 8,000 # cm−3 and 1,900 ± 300 ng m−3) > UB (23,000 ± 9,000 # cm−3 and 1,400 ± 300 ng m−3). Furthermore, 11.26%–16.06% and 20.35%–24.32% increases of the average UFPs PNC and BC mass concentrations were identified during cold period at all measurement sites. Additionally, peak average concentrations of UFPs PNC and BC were identified at IN and RS during morning rush-hour and weekdays periods, following the diurnal profiles of traffic flux compositions and total vehicle number per day. Intra-urban spatial variability of UFPs was identified between roadsides and urban background (IQR/M ratio ≥ 2, ρ ≤ 0.05), highlighting the heterogeneity characteristic of the pollutant. Both pollutants at IN and RS were significantly influenced by traffic activities, while at UB, they were associated with meteorological conditions and secondary emission. Elevated levels of pollutants identified in this study have exceeded typical “high-level” UFPs according to WHO AQG 2021, indicating an intensified exposure risk for pedestrians and residents. This study serves as reference for future epidemiological study related to roadside UFPs in typical urban microenvironments such as industrial park areas. |
| format | Article |
| id | doaj-art-7709324287f34fefa33c02067ab7b518 |
| institution | Kabale University |
| issn | 1680-8584 2071-1409 |
| language | English |
| publishDate | 2024-03-01 |
| publisher | Springer |
| record_format | Article |
| series | Aerosol and Air Quality Research |
| spelling | doaj-art-7709324287f34fefa33c02067ab7b5182025-02-09T12:24:22ZengSpringerAerosol and Air Quality Research1680-85842071-14092024-03-0124511710.4209/aaqr.230295Characterizing Traffic-Related Ultrafine Particles in Roadside Microenvironments: Spatiotemporal Insights from Industrial ParksSultan F.I. Abdillah0Sheng-Jie You1Ya-Fen Wang2Department of Civil Engineering, Chung Yuan Christian UniversityDepartment of Environmental Engineering, Chung Yuan Christian UniversityDepartment of Environmental Engineering, Chung Yuan Christian UniversityAbstract Ultrafine particles (UFPs; PM0.1) and black carbon (BC) were measured at different roadside microenvironments in the vicinity of the urban industrial park area. Simultaneous measurement campaigns were conducted at industrial roadside (IN), residential roadside (RS), and urban background (UB) throughout different seasons. Spatiotemporal variability as well as correlations between pollutants and confounding factors (traffic profiles and meteorological conditions) were analyzed. The observed average roadside UFPs particle number concentration (UFPs PNC) and BC concentrations were in the order of IN (38,000 ± 9,000 # cm−3 and 2,500 ± 600 ng m−3) > RS (25,000 ± 8,000 # cm−3 and 1,900 ± 300 ng m−3) > UB (23,000 ± 9,000 # cm−3 and 1,400 ± 300 ng m−3). Furthermore, 11.26%–16.06% and 20.35%–24.32% increases of the average UFPs PNC and BC mass concentrations were identified during cold period at all measurement sites. Additionally, peak average concentrations of UFPs PNC and BC were identified at IN and RS during morning rush-hour and weekdays periods, following the diurnal profiles of traffic flux compositions and total vehicle number per day. Intra-urban spatial variability of UFPs was identified between roadsides and urban background (IQR/M ratio ≥ 2, ρ ≤ 0.05), highlighting the heterogeneity characteristic of the pollutant. Both pollutants at IN and RS were significantly influenced by traffic activities, while at UB, they were associated with meteorological conditions and secondary emission. Elevated levels of pollutants identified in this study have exceeded typical “high-level” UFPs according to WHO AQG 2021, indicating an intensified exposure risk for pedestrians and residents. This study serves as reference for future epidemiological study related to roadside UFPs in typical urban microenvironments such as industrial park areas.https://doi.org/10.4209/aaqr.230295Black carbonRoadside microenvironmentsSpatiotemporal variabilityUltrafine particlesUrban industrial park |
| spellingShingle | Sultan F.I. Abdillah Sheng-Jie You Ya-Fen Wang Characterizing Traffic-Related Ultrafine Particles in Roadside Microenvironments: Spatiotemporal Insights from Industrial Parks Aerosol and Air Quality Research Black carbon Roadside microenvironments Spatiotemporal variability Ultrafine particles Urban industrial park |
| title | Characterizing Traffic-Related Ultrafine Particles in Roadside Microenvironments: Spatiotemporal Insights from Industrial Parks |
| title_full | Characterizing Traffic-Related Ultrafine Particles in Roadside Microenvironments: Spatiotemporal Insights from Industrial Parks |
| title_fullStr | Characterizing Traffic-Related Ultrafine Particles in Roadside Microenvironments: Spatiotemporal Insights from Industrial Parks |
| title_full_unstemmed | Characterizing Traffic-Related Ultrafine Particles in Roadside Microenvironments: Spatiotemporal Insights from Industrial Parks |
| title_short | Characterizing Traffic-Related Ultrafine Particles in Roadside Microenvironments: Spatiotemporal Insights from Industrial Parks |
| title_sort | characterizing traffic related ultrafine particles in roadside microenvironments spatiotemporal insights from industrial parks |
| topic | Black carbon Roadside microenvironments Spatiotemporal variability Ultrafine particles Urban industrial park |
| url | https://doi.org/10.4209/aaqr.230295 |
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