Guidelines for passive control of traffic-related air pollution in street canyons: An overview for urban planning

Voordeckers, Dimitri; Lauriks, Tom; Denys, Siegfried; Billen, Pieter; Tytgat, Tom; Acker, Maarten Van

doi:10.1016/j.landurbplan.2020.103980

Cited by 50 publications

(26 citation statements)

References 202 publications

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“…It also comes down to several design aspects as urban ventilation relies very strongly on the appropriate design of the urban configuration. Several features of the urban structure, such as building arrangements and heights, street orientations, and green infrastructure can improve ventilation in urban areas [24,91]. These features need to be considered with reference to the local conditions and infrastructural parameters.…”

Section: Role Of Urban Planning and Legal Tools In The Process Of Air Quality Improvementmentioning

confidence: 99%

“…On the contrary, in some scenarios, greenery in urban areas can bring an opposite effect. This may be the case, for example, of not properly designed roadside vegetation barriers or high greenery in street canyons [24,99]. Moreover, high vegetation may obstruct the process of urban ventilation and should also be considered in the ventilation strategies alongside the effect of the built-up structures [23].…”

Section: Role Of Urban Planning and Legal Tools In The Process Of Air Quality Improvementmentioning

confidence: 99%

“…400,000 people died in Europe as a result of long-term exposure to air pollution [20]. Therefore, urban development policy and planning practice need to be updated to minimise the negative impact of low air quality on health and well-being of urban inhabitants [21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

“…Subsequently, the obtained data were calibrated with measurements at reference air quality monitoring stations operated by the Flemish Environment Agency (VMM).From the planning perspective, two main problem areas in Antwerp related to air quality can be named. The first is the very dense urban fabric of the historic centre of Antwerp, with a high proportion of street canyon geometries (compact, high streets flanked by buildings on both sides), which negatively affects the dispersion of pollutants and, therefore, limits them from escaping the increased human exposure areas[24,64]. Moreover, the network of busy roads in Antwerp constitutes a problem[23].…”

mentioning

confidence: 99%

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Exploring the Institutional and Bottom-Up Actions for Urban Air Quality Improvement: Case Studies in Antwerp and Gdańsk

et al. 2021

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The article presents the results of qualitative studies concerning the presence of air quality management in the process of urban planning and in the public discourse in Antwerp, Belgium, and Gdańsk, Poland. We focused on the way urban planners, environmental experts, and stakeholders perceive the problem of air pollution, especially with respect to urban development policy, and whether they consider it one of the major factors determining the quality of the urban built environment. The analysis was empirically based on free, partially structured interviews with experts. With that aim, we referred to certain assumptions of the multidimensional concept of environmental protection and integrated urban planning, highlighting the knowledge gained through interview analysis, literature review, and comparative case study research. The approach brings to light the difference between the perceived and measured air quality and to what extent it is affected by the spatial conditions. The research reveals how the range of perceptions of air pollution is embedded in several sociological, urban planning, and cultural perspectives and how these perceptions differ between the different profiles of the stakeholders and experts.

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Section: Role Of Urban Planning and Legal Tools In The Process Of Air Quality Improvementmentioning

confidence: 99%

Section: Role Of Urban Planning and Legal Tools In The Process Of Air Quality Improvementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Exploring the Institutional and Bottom-Up Actions for Urban Air Quality Improvement: Case Studies in Antwerp and Gdańsk

et al. 2021

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“…The potential of noise barriers is affected by their size and shape, wind direction, and turbulence; in particular, the barrier height can influence pollutant concentrations at sensors near the barrier [47]. Studies have also identified that solid barriers and low boundary walls have similar effects to those exhibited by vegetation [48,49].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Vegetation Configuration Models for Managing Particulate Matter along the Urban Street Environment

Jeong

Han

Kim

2022

Forests

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As a green infrastructure component, urban street vegetation is increasingly being utilized to mitigate air pollution, control microclimates, and provide aesthetic and ecological benefits. This study investigated the effect of vegetation configurations on particulate matter (PM) flows for pedestrians in road traffic environments via a computation fluid dynamics analysis based on the road width (four and eight-lane) and vegetation configuration (single-, multi-layer planting, and vegetation barrier). Airflow changes due to vegetation influenced PM inflow into the sidewalk. Vegetation between roadways and sidewalks were effective at reducing PM concentrations. Compared to single-layer planting (trees only), planting structures capable of separating sidewalk and roadway airflows, such as a multi-layer planting vegetation barrier (trees and shrubs), were more effective at minimizing PM on the sidewalk; for wider roads, a multi-layer structure was the most effective. Furthermore, along a four-lane road, the appropriate vegetation volume and width for reducing PM based on the breathing height (1.5 m) were 0.6 m3 and 0.4 m, respectively. The appropriate vegetation volume and width around eight-lane roads, were 1.2–1.4 m3 and 0.8–0.93 m, respectively. The results of this study can provide appropriate standards for street vegetation design to reduce PM concentrations along sidewalks.

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Spatial distribution, pollution level and human health risk assessment of heavy metals in urban street dust at neighbourhood scale

Isinkaralar,

Nguyen

2024

Int J Biometeorol

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Urban street dust (UStD) is a vital issue for human health and is crucial for urban sustainability. This study aims to enhance the creation of safe, affordable, and resilient cities by examining environmental contamination and health risks in urban residential areas. Specifically, it investigates the concentrations and spatial distribution of chromium (Cr), cadmium (Cd), nickel (Ni), copper (Cu), lead (Pb), and zinc (Zn) in UStD in Yenimahalle, Ankara. The mean concentrations of Zn, Cr, Pb, Cd, Ni, and Cu in UStD were 97.98, 66.88, 55.22, 52.45, 38.37, and 3.81 mg/kg, respectively. The geoaccumulation pollution index (Igeo) values for these elements were: Cd (5.12), Ni (1.61), Cr (1.21), Pb (1.13), Cu (0.78), and Zn (0.24). These indices indicate that the area is moderately polluted with Cr, Pb, and Ni, uncontaminated to moderately contaminated with Cu and Zn, and extremely polluted with Cd. The hazard index (HI) values for Cr, Cd, Ni, Cu, Pb, and Zn were below the non-carcinogenic risk threshold for adults, indicating no significant risk. However, for children, the HI values for Pb, Ni, Cd, and Zn were 3.37, 1.80, 1.25, and 1.25, respectively, suggesting a higher risk. Carcinogenic risk (RI) of Cd, Ni, and Pb was significant for both children and adults, indicating that exposure through ingestion, inhalation, and dermal contact is hazardous. The findings highlight the need for strategic mitigation measures for both natural and anthropogenic activities, providing essential insights for residents, policymakers, stakeholders, and urban planners.

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Guidelines for passive control of traffic-related air pollution in street canyons: An overview for urban planning

Cited by 50 publications

References 202 publications

Exploring the Institutional and Bottom-Up Actions for Urban Air Quality Improvement: Case Studies in Antwerp and Gdańsk

Exploring the Institutional and Bottom-Up Actions for Urban Air Quality Improvement: Case Studies in Antwerp and Gdańsk

Evaluation of Vegetation Configuration Models for Managing Particulate Matter along the Urban Street Environment

Spatial distribution, pollution level and human health risk assessment of heavy metals in urban street dust at neighbourhood scale

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