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DOI	10.1016/j.atmosenv.2021.118692
	Indirect method for determining the dry deposition velocity of submicron particulate matter on leaves
	Zhang X.; Yin S.; Lyu J.; Sun N.; Shen G.; Liu C.
发表日期	2021
ISSN	1352-2310
卷号	264
英文摘要	Plant leaves, as natural receptors of airborne particles, can retain particles onto their surfaces, and absorb gaseous pollutants, thus mitigating air pollution and improving air quality. Dry deposition is considered the main process for particle removal from the atmosphere, and its velocity (Vd) is a crucial parameter for describing the process. Wind tunnels, a conventional approach to determine Vd, are costly and require substantial space, and regular inspections to maintain their systematic integrity. Hence, this study established a simpler and more straightforward method based on relevant research to obtain the submicron particulate matter (aerodynamic diameter ≤1 μm; PM1) Vd on plant leaves. This method involves determining the attenuation pattern of particle concentration in a smog chamber. The Vd values of six tree species (three broadleaved and three coniferous) were obtained through the indirect method. In addition, we determined the Vd of the same tree species with a wind tunnel and compared the values from both methods. Through the paired-samples t-test, it's found that there is no significant difference (sig. = 0.59) between these two methods, which means that the indirect method is feasible to determine Vd. We also compared our results with those from other researches, and we found that the Vd values in our study might be lower because leaves and shoots were used in this research, while branches or seedings were selected in the literature. Overall, when applying such values to predictive models or in concrete studies, researchers must consider factors such as real-time meteorological conditions (humidity, temperature, etc.) and pollutant concentration. The indirect method requires less space and is less costly than the wind tunnel method; therefore, it can easily be used to conduct experiments under controlled conditions, which is helpful for simulating various scenarios. © 2021 Elsevier Ltd
关键词	Deposition velocity (Vd)Indirect method Submicron particulate matter (PM1)Wind tunnel
语种	英语
scopus关键词	Air quality; Fog; Forestry; Particles (particulate matter); Plants (botany); Wind tunnels; D values; Deposition velocity (Vd); Dry deposition velocities; Indirect methods; Natural receptors; Particulate Matter; Plant leaves; Sub-micron particulates; Submicron particulate matter (PM1); Tree species; Deposition; aerosol; atmospheric pollution; concentration (composition); deposition velocity; detection method; leaf area; particulate matter; air pollution; air quality; airborne particle; analysis of variance; Article; atmosphere; controlled study; dry deposition; environmental parameters; environmental temperature; humidity; meteorology; particulate matter; plant leaf; shoot; Student t test
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248239
作者单位	School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai, 200240, China; Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station, Ministry of Science and Technology, Ministry of Education, 800 Dongchuan Rd, Shanghai, 200240, China; Shanghai Urban Forest Ecosystem Research Station, National Forestry and Grassland Administration, 800 Dongchuan Rd., Shanghai, 200240, China; Key Laboratory for Urban Agriculture, Ministry of Agriculture and Rural Affairs, 800 Dongchuan Rd., Shanghai, 200240, China
推荐引用方式 GB/T 7714	Zhang X.,Yin S.,Lyu J.,et al. Indirect method for determining the dry deposition velocity of submicron particulate matter on leaves[J],2021,264.
APA	Zhang X.,Yin S.,Lyu J.,Sun N.,Shen G.,&Liu C..(2021).Indirect method for determining the dry deposition velocity of submicron particulate matter on leaves.ATMOSPHERIC ENVIRONMENT,264.
MLA	Zhang X.,et al."Indirect method for determining the dry deposition velocity of submicron particulate matter on leaves".ATMOSPHERIC ENVIRONMENT 264(2021).