Dynamics of the captured quantity of particulate matter by plant leaves under typical weather conditions

Huixia, 王会霞 Wang; Hui, 石辉 Shi; Yanhui, 王彦辉 Wang

doi:10.5846/stxb201306051356

Cited by 4 publications

(5 citation statements)

References 3 publications

(3 reference statements)

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“…On the other hand, ZMA, located in the northern region, experiences substantial vegetation loss from late autumn to early spring, resulting in extensive areas of exposed bare ground. In spring, the prevailing conditions of dryness and high winds often exacerbate air PM pollution due to the friction between arid air currents and the earth's surface, leading to increased dust emissions Wang et al, 2015). LSI exacerbated PM pollution at medium and small scales through wind speed.…”

Section: The Interconnected In Uence Of Greenspace Layouts and Wind S...mentioning

confidence: 99%

Combined effects of Wind Speed and Greenspace Layouts on Particulate Matter Pollution: A Multiscale Study in the Zhengzhou Metropolitan Area

Wu,

Shang,

Cao

et al. 2024

Preprint

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Atmospheric particulate matter (PM) pollution is separately influenced by urban greenspaces and meteorological conditions. However, the mediating role of wind environment and the combined effect of greenspace pattern layouts and wind on PM pollution remains unclear. This study, conducted in the Zhengzhou metropolitan area (ZMA), which includes nine cities, utilized high-resolution satellite imagery, PM concentration data, and wind speed monitoring data from 2021. We investigated the combined effects of greenspace layouts and wind speed on PM2.5 and PM10 pollution, as well as their scale effects, by constructing Structural Equation Models (SEMs). The results demonstrated that wind speed mediated the impact of greenspace layouts on PM2.5 and PM10 concentrations across various scales. Greenspace layouts and wind speed exhibited more substantial combined effects on PM10 in comparison to PM2.5. The combined effects of greenspace layouts and wind speed on PM2.5 and PM10, in addition to the mediating effects of wind speed, varied significantly across scales. Accounting for the influence of urban wind speed, reducing the percentage of large greenspace patches at the 3-5km scales can significantly diminish PM10 pollution. Simplifying the morphology of greenspace patches at the 1-3km scales, coupled with enhancing the interconnectivity of greenspace patches and the percentage of greenspace at the 2-4km scales, and minimizing the clustering of greenspace patches at the 3-4km scales, such measures can effectively mitigate PM pollution by influencing wind speed. Our findings can provide new insights of incorporating local wind environment into the development of multi-scale greenspace landscape optimization strategies aimed at mitigating PM pollution in ZMA.

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Section: The Interconnected In Uence Of Greenspace Layouts and Wind S...mentioning

confidence: 99%

Combined effects of Wind Speed and Greenspace Layouts on Particulate Matter Pollution: A Multiscale Study in the Zhengzhou Metropolitan Area

Wu,

Shang,

Cao

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…Monthly (short-term) and annual (long-term) meteorological factors were considered in our research, and they showed opposite effects, which is different to the former research. Due to the trade-off of PM retention and shed-ding on the leaf surface of plants, the humidity and wind can increase or decrease the PM retention on the leaf surface (Wang et al, 2015). Higher relative humidity raises the foliar PM retention due to hygroscopic growth sometimes (Mohan, 2016); while higher relative humidity can also decline the foliar PM because of rainfall erosion (Wang et al, 2015).…”

Section: Joint Effects Of All Factors On Foliar Pmmentioning

confidence: 99%

“…Due to the trade-off of PM retention and shed-ding on the leaf surface of plants, the humidity and wind can increase or decrease the PM retention on the leaf surface (Wang et al, 2015). Higher relative humidity raises the foliar PM retention due to hygroscopic growth sometimes (Mohan, 2016); while higher relative humidity can also decline the foliar PM because of rainfall erosion (Wang et al, 2015). The deposition velocity and PM load on leaf increase with wind speed, but a very high wind speed may lead to a decrease of the deposition rate (Beckett et al, 2000;Ould-Dada and Baghini, 2001;Freer-Smith et al, 2004).…”

Section: Joint Effects Of All Factors On Foliar Pmmentioning

confidence: 99%

“…Meanwhile, with the rising humidity, particle sizes in the air become larger because of coagulating with each other or moisture absorption, which is conducive to deposition on leaf surfaces (Mohan, 2016). However, the increasd air humid-ity and the transpiration of plants will also make the leaves moister, thus improving the PM retention ability of plants (Wang et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…Ould- Dada and Baghini (2001) found that when the wind speed was less than 5 m/s, it could not affect the accumulation of particles on the leaf surface. Only in the appropriate wind speeds, the PM retention function of plant is prominent; if the wind speed is too high in a period of time, the PM retention will be reduced (Wang et al, 2015), strong wind could even clean PM on leaves and make it possible for re-accumulation.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Foliar Particulate Matter Distribution in Urban Road System of Beijing, China

Liu

et al. 2019

Chin. Geogr. Sci.

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Particulate matter (PM), one of the most important pollutants of traffic emission, threatens the health of urban ecosystems and citizens. Roadside trees play an important role in trapping PM, and the foliar PM load is a useful indicator for air PM pollution in road systems. To detect the relationships of foliar PM load with road structures, urbanization, and meteorology in road systems, we studied a widely-planted tree Sophora japonica L. in 100 roads and 10 yards of Beijing, China, and found that the foliar PM loads increased with the distances from the urban centre (DUC) linearly, while decreased with the road density. All-subsets regression analysis indicated that DUC, average monthly relative humidity, average monthly wind speed, and mean annual wind speed were the most important factors in predicting foliar PM load, rather than general situation of buildings and road cleanliness. The monthly relative humidity and monthly wind speed had a negative correlation to foliar PM, while the annual relative humidity and annual wind speed had a positive correlation to foliar PM. Suburban areas and these effective factors should be highlighted in PM control in Beijing.

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Influence of leaf morphological characteristics on the dynamic changes of particulate matter retention and grain size distributions

Yan

Duan

et al. 2022

Environmental Technology

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Dynamics of the captured quantity of particulate matter by plant leaves under typical weather conditions

Cited by 4 publications

References 3 publications

Combined effects of Wind Speed and Greenspace Layouts on Particulate Matter Pollution: A Multiscale Study in the Zhengzhou Metropolitan Area

Combined effects of Wind Speed and Greenspace Layouts on Particulate Matter Pollution: A Multiscale Study in the Zhengzhou Metropolitan Area

Foliar Particulate Matter Distribution in Urban Road System of Beijing, China

Influence of leaf morphological characteristics on the dynamic changes of particulate matter retention and grain size distributions

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