Keyword search (4,163 papers available)

"Cai M" Authored Publications:

Title Authors PubMed ID
1 Exploring global oceanic persistence and ecological effects of legacy persistent organic pollutants across five decades Zhang X; Li L; Xie Z; Ma J; Li YF; Cai M; Ren NQ; Kallenborn R; Zhang ZF; Zhang X; C G Muir D; 39321284
CHEMBIOCHEM
2 Insights into the abiotic fragmentation of biodegradable mulches under accelerated weathering conditions Cai M; Qi Z; Guy C; An C; Chen X; Wang Z; Feng Q; 37104954
ENCS
3 An experimental and modeling study on the penetration of spilled oil into thawing frozen soil Qu Z; An C; Mei Z; Yue R; Zhao S; Feng Q; Cai M; Wen J; 36349394
ENCS
4 Polycyclic Aromatic Hydrocarbons in the Marine Atmosphere from the Western Pacific to the Southern Ocean: Spatial Variability, Gas/Particle Partitioning, and Source Apportionment Zhang X; Zhang ZF; Zhang X; Zhu FJ; Li YF; Cai M; Kallenborn R; 35476391
CHEMBIOCHEM
5 Pesticides in the atmosphere and seawater in a transect study from the Western Pacific to the Southern Ocean: The importance of continental discharges and air-seawater exchange Zhang X; Zhang X; Zhang ZF; Yang PF; Li YF; Cai M; Kallenborn R; 35452973
CHEMBIOCHEM
6 Assessing the regional biogenic methanol emission from spring wheat during the growing season: A Canadian case study Cai M; An C; Guy C; Lu C; Mafakheri F; 34182392
ENCS
7 Particulate matter transported from urban greening plants during precipitation events in Beijing, China. Cai M, Xin Z, Yu X 31284207
ENCS

 

Title:Particulate matter transported from urban greening plants during precipitation events in Beijing, China.
Authors:Cai M,  Xin Z,  Yu X
Link:https://www.ncbi.nlm.nih.gov/pubmed/31284207?dopt=Abstract
DOI:10.1016/j.envpol.2019.06.119
Publication:Environmental pollution (Barking, Essex : 1987)
Keywords:Greening plants;  Natural precipitation;  PM wash-off mass;  Particulate matter;  Throughfall; 
PMID:31284207 Category:Environ Pollut Date Added:2019-08-07
Dept Affiliation: ENCS
1 School of Soil and Water Conservation, Beijing Forestry University, 35 Tsinghua Road, Haidian District, Beijing 100083, PR China; Department of Building, Civil and Environmental Engineering, Faculty of Engineering and Computer Science, Concordia University, 1455 De Maisonneuve Blvd. W., Montreal, Quebec H3G 1M8, Canada.
2 School of Soil and Water Conservation, Beijing Forestry University, 35 Tsinghua Road, Haidian District, Beijing 100083, PR China. Electronic address: bjxin@bjfu.edu.cn.
3 School of Soil and Water Conservation, Beijing Forestry University, 35 Tsinghua Road, Haidian District, Beijing 100083, PR China.

Description:

Particulate matter transported from urban greening plants during precipitation events in Beijing, China.

Environ Pollut. 2019 Jul 01;252(Pt B):1648-1658

Authors: Cai M, Xin Z, Yu X

Abstract

Particulate matter (PM) deposited on canopy surfaces could be washed off and carried in throughfall to the ground. This would help plants recapture airborne PM on their canopy surfaces and then develop a PM purification capacity. Sixteen commonly greening plant species in north China (including 13 arbor species and 3 shrub species) were selected to investigate the washing process of plant-deposited PM during precipitation events. We measured the PM wash-off mass in throughfall under canopies of 16 plant species and in atmospheric precipitation during 14 precipitation events through field positioning experiments in 2015, compared the seasonal changes and species differences in PM wash-off mass, and discussed the predominant factors resulting in the variation. The results showed that plant-deposited PM was largely washed off by precipitation. The average wash-off mass of total suspended particulate (TSP) in throughfall was 1.3 times higher than that in precipitation, at 18.3?±?0.7?kg?hm-2 and 7.9?±?0.9?kg?hm-2, respectively. There were significant seasonal differences in TSP wash-off mass. The value was higher in summer at 22.3?±?1.0?kg?hm-2, followed by that of winter (10.8?±?0.6?kg?hm-2) and spring (8.9?±?1.0?kg?hm-2). TSP wash-off mass in throughfall greatly varied among plant species (F?=?9.542, n?=?627, p?<?0.001). Of the 16 selected species, Platanus acerifolia (38.0?±?5.8?kg?hm-2) showed the largest difference from that of Liriodendron chinese (8.9?±?0.6?kg?hm-2) (n?=?80, p?<?0.001). PM wash-off mass of different particle sizes in throughfall increased with the increase of event-based precipitation. This study enhanced the quantitative understanding of plant-deposited PM washed-off by natural precipitation among plant species and seasons. The results could provide significant guidelines for the selection and allocation of plant species to improve the PM retention capacity of urban greening plants.

PMID: 31284207 [PubMed - as supplied by publisher]




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