Variation in Tree Species Ability to Capture and Retain Airborne Fine Particulate Matter (PM2.5)

Abstract Human health risks caused by PM2.5 raise awareness to the role of trees as bio-filters of urban air pollution, but not all species are equally capable of filtering the air. The objectives of this current study were: (1) to determine the foliar traits for effective PM2.5-capture and (2) expl...

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Autores principales:	Lixin Chen, Chenming Liu, Lu Zhang, Rui Zou, Zhiqiang Zhang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/42bc18b17af74112a2c53ada5136b900
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spelling	oai:doaj.org-article:42bc18b17af74112a2c53ada5136b9002021-12-02T16:06:36ZVariation in Tree Species Ability to Capture and Retain Airborne Fine Particulate Matter (PM2.5)10.1038/s41598-017-03360-12045-2322https://doaj.org/article/42bc18b17af74112a2c53ada5136b9002017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-03360-1https://doaj.org/toc/2045-2322Abstract Human health risks caused by PM2.5 raise awareness to the role of trees as bio-filters of urban air pollution, but not all species are equally capable of filtering the air. The objectives of this current study were: (1) to determine the foliar traits for effective PM2.5-capture and (2) explore species-to-species differences in foliar PM2.5-recapture capacity following a rain event. The study concluded that overall, the acicular needle shape made conifers more efficient with PM2.5 accumulation and post-rainfall recapture than broadleaved species. The foliar shape and venation of broadleaved species did not appear to influence the PM2.5 accumulation. However, the number of the grooves and trichomes of broadleaved species were positively related to foliar PM2.5 accumulation, suggesting that they could be used as indicators for the effectiveness of tree PM2.5 capture. Furthermore, the amount of PM2.5 removal by rainfall was determined by the total foliar PM2.5. Not all PM2.5 remained on the foliage. In some species, PM2.5 was resuspended during the growing season, and thus reduced the net particular accumulation for that species. These findings contribute to a better understanding of tree species potential for reducing PM2.5 in urban environments.Lixin ChenChenming LiuLu ZhangRui ZouZhiqiang ZhangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Lixin Chen Chenming Liu Lu Zhang Rui Zou Zhiqiang Zhang Variation in Tree Species Ability to Capture and Retain Airborne Fine Particulate Matter (PM2.5)
description	Abstract Human health risks caused by PM2.5 raise awareness to the role of trees as bio-filters of urban air pollution, but not all species are equally capable of filtering the air. The objectives of this current study were: (1) to determine the foliar traits for effective PM2.5-capture and (2) explore species-to-species differences in foliar PM2.5-recapture capacity following a rain event. The study concluded that overall, the acicular needle shape made conifers more efficient with PM2.5 accumulation and post-rainfall recapture than broadleaved species. The foliar shape and venation of broadleaved species did not appear to influence the PM2.5 accumulation. However, the number of the grooves and trichomes of broadleaved species were positively related to foliar PM2.5 accumulation, suggesting that they could be used as indicators for the effectiveness of tree PM2.5 capture. Furthermore, the amount of PM2.5 removal by rainfall was determined by the total foliar PM2.5. Not all PM2.5 remained on the foliage. In some species, PM2.5 was resuspended during the growing season, and thus reduced the net particular accumulation for that species. These findings contribute to a better understanding of tree species potential for reducing PM2.5 in urban environments.
format	article
author	Lixin Chen Chenming Liu Lu Zhang Rui Zou Zhiqiang Zhang
author_facet	Lixin Chen Chenming Liu Lu Zhang Rui Zou Zhiqiang Zhang
author_sort	Lixin Chen
title	Variation in Tree Species Ability to Capture and Retain Airborne Fine Particulate Matter (PM2.5)
title_short	Variation in Tree Species Ability to Capture and Retain Airborne Fine Particulate Matter (PM2.5)
title_full	Variation in Tree Species Ability to Capture and Retain Airborne Fine Particulate Matter (PM2.5)
title_fullStr	Variation in Tree Species Ability to Capture and Retain Airborne Fine Particulate Matter (PM2.5)
title_full_unstemmed	Variation in Tree Species Ability to Capture and Retain Airborne Fine Particulate Matter (PM2.5)
title_sort	variation in tree species ability to capture and retain airborne fine particulate matter (pm2.5)
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/42bc18b17af74112a2c53ada5136b900
work_keys_str_mv	AT lixinchen variationintreespeciesabilitytocaptureandretainairbornefineparticulatematterpm25 AT chenmingliu variationintreespeciesabilitytocaptureandretainairbornefineparticulatematterpm25 AT luzhang variationintreespeciesabilitytocaptureandretainairbornefineparticulatematterpm25 AT ruizou variationintreespeciesabilitytocaptureandretainairbornefineparticulatematterpm25 AT zhiqiangzhang variationintreespeciesabilitytocaptureandretainairbornefineparticulatematterpm25
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Variation in Tree Species Ability to Capture and Retain Airborne Fine Particulate Matter (PM2.5)

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