Urban vegetation and particle air pollution: Experimental campaigns in a traffic hotspot

Gómez-Moreno, F.J.; Artı́ñano, Begoña; Díaz-Ramiro, Elías; Barreiro, Marcos; Núñez, L.; Coz, Esther; Dimitroulopoulou, C.; Vardoulakis, Sotiris; Yagüe, Carlos; Maqueda, Gregorio; Sastre, Mariano; Román‐Cascón, Carlos; Santamaría, Jesús Miguel; Borge, Rafael

doi:10.1016/j.envpol.2019.01.016

Cited by 48 publications

(27 citation statements)

References 28 publications

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“…In Spain, a recent study was aiming at understanding the micro scale spatio-temporal variation of ambient concentration levels in areas with high pollution values to study the effect of urban trees on particulate matter concentrations. Results of this study showed a reduction in the concentrations of PM 10 and PM 2.5 and black carbon with considerable percents (50%, 50% and 20%, respectively) [31]. The study that had been conducted in five Dutch cities to investigate air pollution at street level before and after implementation of local traffic policies including low emission zones (LEZ), revealed that all pollutant concentrations were lower in 2010 than in 2008 [16].…”

Section: Discussionmentioning

confidence: 80%

Study the effectiveness of different actions and policies in improving urban air quality: Dammam City as a case study

El-Sharkawy

Dahlawi

2019

Journal of Taibah University for Science

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Traffic-related air pollution abatement will remain a challenge because of increasing demand for transportation. This study was aiming to assess the effectiveness of different actions and policies in improving urban air quality. Levels of five air pollutants were simultaneously measured at three locations with different human activities for continuous six years starting from 2010 to 2015 at Dammam City in Saudi Arabia. Data of road traffic policies and administrative actions was obtained from several governmental authorities. Levels of the five pollutants were gradually reduced from year to year with different percents and trends. As for PM10 and VOCs, levels of the industrial and commercial areas were still higher than their recommended air quality guidelines (AQGs) (150 µg/m3 and 0.24 ppm respectively). The traffic management policies and administrative actions appear to be effective to produce significant decreases in traffic-related air pollution concentrations and improve the air quality of urban areas. ARTICLE HISTORY

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Section: Discussionmentioning

confidence: 80%

Study the effectiveness of different actions and policies in improving urban air quality: Dammam City as a case study

El-Sharkawy

Dahlawi

2019

Journal of Taibah University for Science

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“…On-site air quality measurements, also if coupled with field vegetation inventories, and data analysis [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30] On-site air quality measurements or soil sampling, measurements of pollution removal by means of laboratory techniques, including instrumental analysis on plant samples (e.g., microscopic analysis, spectroscopy, gravimetry, gas exchange measurements, wind tunnel experiments on leaves or branches etc.) and data analysis [31][32][33][34][35] Measurements of pollution removal by means of laboratory techniques, including instrumental analysis on plant samples and data analysis [11][12][13] Estimates of pollution removal by vegetation or statistical analysis based on field plant inventories or remote sensing data and existing literature/databases or air quality data [60][61][62][63][64][65][66] Modelling Approaches…”

Section: Field Measurements And/or Laboratory Analysismentioning

confidence: 99%

“…At the micro-scale level, single elements of the geometry of the urban canopy layer were investigated, such as buildings or building complexes, street canyons, roads, or urban parks. In particular, vegetation around building complexes [15], near-road locations [14,19,21,23,24,[26][27][28]34,75,76], urban green spaces [16,22,44,63], or green roofs [17,29] were considered. The studies at the neighbourhood scale, in which several urban blocks or large open urban areas were considered, or at the city scale, which included the area of the entire municipality, were less common.…”

Section: Semi-empirical (Operational) Air Quality Modelsmentioning

confidence: 99%

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Urban Vegetation in Air Quality Management: A Review and Policy Framework

2020

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Recent episodes of high air pollution concentration levels in many Polish cities indicate the urgent need for policy change and for the integration of various aspects of urban development into a common platform for local air quality management. In this article, the focus was placed on the prospects of improving urban air quality through proper design and protection of vegetation systems within local spatial planning strategies. Recent studies regarding the mitigation of air pollution by urban greenery due to deposition and aerodynamic effects were reviewed, with special attention given to the design guidelines resulting from these studies and their applicability in the process of urban planning. The conclusions drawn from the review were used to conduct three case studies: in Gdańsk, Warsaw, and Poznań, Poland. The existing local urban planning regulations for the management of urban greenery were critically evaluated in relation to the findings of the review. The results indicate that the current knowledge regarding the improvement of urban air quality by vegetation is not applied in the process of urban planning to a sufficient degree. Some recommendations for alternative provisions were discussed.

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“…At the same time, during the two experimental campaigns, the traffic volumes and composition were recorded using the DJI M200 UAV with high definition camera and infrared camera and then manually counted (Figure 2d The same pollutants were measured at two experimental sites, including PNs of the six size segments (0-0.3 µm, 0.3-0.5 µm, 0.5-1 µm, 1-3 µm, 3-5 µm, and 5-10 µm), PMs of the three size segments (1 µm, 2.5 µm, and 10 µm), and BC (880 nm). To achieve the above monitoring objectives, the DustTrak DRX Aerosol Monitor 8534 [30] was used to measure the PMs, the TSI AeroTrak Handheld Particle Counter 9306 was used to measure the PNs [31,32], and the Magee Scientific microAeth Model AE51 was used to measure the BC [30]. The technical parameters of each instrument are shown in Table 1.…”

Section: Data Collectionmentioning

confidence: 99%

Vertical and Horizontal Profiles of Particulate Matter and Black Carbon Near Elevated Highways Based on Unmanned Aerial Vehicle Monitoring

et al. 2020

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Highways passing through cities cause additional pollution inside the city. However, most of the current studies are using ground-based monitoring technologies, which make it difficult to capture the dispersion patterns of pollutants near elevated highways or transportation interchanges. The purpose of this study is to discover short-term three-dimensional variations in traffic-related pollutants based on unmanned aerial vehicles. The monitoring locations are at suburban elevated highway and transportation interchanges. The monitoring parameters include the particle number concentration (PN), particle mass concentration (PM), and black carbon (BC). The vertical profiles showed that most air pollutants increased significantly with the height of the elevated highways. Compared with the ground level, PNs increased by 54%–248% and BC increased by 201%. The decline rate of particle concentrations decreased with the increase of height and remained stable after 120 m. Furthermore, the R2 heatmap for regressions between each altitude showed that the linear relationship between 0–120 m was higher than that of other altitudes. In horizontal profiles, PNs spread to 100 m and then began to decline, BC began to decay rapidly after 50 m, but PMs varied less. After crossing another highway, PNs increased by 69–289%, PMs by 7–28%, and BC by 101%. Furthermore, the formation of new particles was observed at both locations as PN3 increased with distance within 100 m from the highway. This paper fills in the void of three-dimensional in situ monitoring near elevated highways, and can help develop and refine a three-dimensional traffic-related air pollution dispersion model and assess the impacts of transportation facilities on the urban environment.

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Urban vegetation and particle air pollution: Experimental campaigns in a traffic hotspot

Cited by 48 publications

References 28 publications

Study the effectiveness of different actions and policies in improving urban air quality: Dammam City as a case study

Study the effectiveness of different actions and policies in improving urban air quality: Dammam City as a case study

Urban Vegetation in Air Quality Management: A Review and Policy Framework

Vertical and Horizontal Profiles of Particulate Matter and Black Carbon Near Elevated Highways Based on Unmanned Aerial Vehicle Monitoring

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