The Capture of Particulate Pollution by Trees at Five Contrasting Urban Sites

Beckett, K.P.; Freer‐Smith, P. H.; Taylor, Gail

doi:10.1080/03071375.2000.9747273

Cited by 121 publications

(68 citation statements)

References 10 publications

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“…Many attempts have indicated that broadleaf species with rough leaf surfaces are more efficient in capturing PM than those with smooth leaf surfaces [14][15]. Conifers have species-specific features such as leaf morphology, leaf type, and leaf area index that act as the main structures and are considered more effective at capturing PM [16]. Other studies have investigated PM deposition on vegetation in wind tunnels to investigate the deposition velocity on different tree species [18][19].…”

Section: Introductionmentioning

confidence: 99%

Spatial-Temporal Variability and Dust-Capture Capability of 8 Plants in Urban China

Zha¹,

Shi²,

Tang³

et al. 2018

Pol. J. Environ. Stud.

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Urban plants have been proven to mitigate ambient particulate matter (PM), which can benefit urban planners in their attempts to control urban air pollution. In this study, PM depositions on the leaves of 8 tree species were quantitatively analysed in 7 functional areas of the city of Nanjing, China, over the course of one year. The results demonstrated that leaf PM included different particle size fractions (PM 10 and PM 2.5 ), and differed among seasons and species. The highest amounts of total PM, PM 10 , and PM 2.5 were found in the industrial area, and the mean values were 80.24 μg/cm 2 , 52.14 μg/cm 2 , and 15.51 μg/cm 2 , respectively, and the highest accumulation of total PM (60.65 μg/cm 2 ), PM 10 (37.29 μg/cm 2 ), and PM 2.5 (11.23 μg/cm 2 ) occurred in winter. Significant differences were found between the tree species tested. Cedrus deodara exhibited high amounts of the total PM, PM 10 , and PM 2.5 accumulations. This study examined the mass and quantity distribution of PM among tree species, and identified the particles combined with a scanning electron microscope (SEM). In terms of particle mass, 48% of the identified particles had a diameter of 10 μm, and only 18.3% of them had a diameter of 2.5 μm. In terms of particle number, the results indicated that 73% of them had a diameter of 2.5 μm, and only 5.5% of them had a diameter of 10 μm. To test the relationship between leaf traits and PM 2.5 accumulation, results showed that stomata size, density, and hair were significantly related to the PM 2.5 capture quantity. As far as we know, this is the first paper to present the mass and quantity distribution of the PM of different tree species in Nanjing. The results not only give comprehensive insights into the dust-retaining capability of tree species but also offer a selection of species for urban green areas where the goal is to mitigate urban airborne PM.

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Section: Introductionmentioning

confidence: 99%

Spatial-Temporal Variability and Dust-Capture Capability of 8 Plants in Urban China

Zha¹,

Shi²,

Tang³

et al. 2018

Pol. J. Environ. Stud.

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show abstract

“…Deposition velocities of PM2.5, PM1, and PM10 on trees were estimated from the literature and varied with wind speed [5,[53][54][55][56]. Freer-Smith et al [53] measured the relationship between relative deposition velocity and wind in wind tunnels.…”

Section: Urban Forest Effects Model: Air Particulate Removed By Treesmentioning

confidence: 99%

“…The ability of trees to intercept air pollutants changes with climate and growth. Leaves with large surface area or hairy, scaly, or resinous surfaces capture more particles than small or smooth leaves [4,5,13,14].…”

Section: Air-pollutant Removalmentioning

confidence: 99%

“…The government has taken intensive efforts to solve these problems by approaches such as the development of public transport, improvement in gasoline quality standards, vigorous promotion of clean production, and acceleration of the adjustment of energy structure. The use of vegetation for removing atmospheric pollutants has attracted increasing attention among scientists and urban planners [1][2][3][4][5][6][7][8][9]. Urban forests play an important role in reducing atmospheric pollution and improving the quality of the urban environment.…”

Section: Introductionmentioning

confidence: 99%

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The Concentrations and Reduction of Airborne Particulate Matter (PM10, PM2.5, PM1) at Shelterbelt Site in Beijing

Chen

Sun

et al. 2015

Atmosphere

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Particulate matter is a serious source of air pollution in urban areas, where it exerts adverse effects on human health. This article focuses on the study of subduction of shelterbelts for atmospheric particulates. The results suggest that (1) the PM mass concentration is higher in the morning or both morning and noon inside the shelterbelts and lower mass concentrations at other times; (2) the particle mass concentration inside shelterbelt is higher than outside; (3) the particle interception efficiency of the two forest belts over the three months in descending order was PM10 > PM1 > PM2.5; and (4) the two shelterbelts captured air pollutants at rates of 1496.285 and 909.075 kg/month and the major atmospheric pollutant in Beijing city is PM10. Future research directions are to study PM mass concentration variation of shelterbelt with different tree species and different configuration.

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“…Some of them can be excreted through the sputum, thus their harm to human health is relatively small [20]. The fine particles in 1.0-2.5 µm can enter the bronchus and other lower respiratory system, the fine particle in 0.1-1.0 µm can enter the lungs, and the ultrafine particles can penetrate the alveolar, and then enter the various parts of the body through the blood circulation, finally cause greater harm to human health [21,22]. Relevant researches shows that fine particulate matter PM2.5 can induce respiratory, cardiovascular, heart, lung and reproductive system diseases, damage the DNA structure, and leads to cancer [23,24].…”

Section: The Hazard Effects Of Indoor Pollution Sourcesmentioning

confidence: 99%

The Effects of Indoor Activities on Pollution Characteristics of Air Particles in an Office Environment

Zheng¹,

Zhao²,

Li³

et al. 2016

JRST

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This article compares the effects of different indoor activities on pollution characteristics of air particles in an office. Some indoor activities, such as smoking, mopping floor, wiping table, sweeping floor, walking and air humidification, were studied. The dynamical changes of the mass concentration and the particle number concentration over time were analyzed. The concept of area is introduced to rank the health hazards. The results indicate that the effects of the humidification on the indoor particulate matter are the most significant, then the sweeping floor, smoking, mopping floor, and the walking and wiping table are the least. For indoor particulate matter, the guideline value system for PM1.0 and the exposure time can be set as 1 hour.

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The Capture of Particulate Pollution by Trees at Five Contrasting Urban Sites

Cited by 121 publications

References 10 publications

Spatial-Temporal Variability and Dust-Capture Capability of 8 Plants in Urban China

Spatial-Temporal Variability and Dust-Capture Capability of 8 Plants in Urban China

The Concentrations and Reduction of Airborne Particulate Matter (PM10, PM2.5, PM1) at Shelterbelt Site in Beijing

The Effects of Indoor Activities on Pollution Characteristics of Air Particles in an Office Environment

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