Journal ArticleDOI
Plant canopies: bio-monitor and trap for re-suspended dust particulates contaminated with heavy metals
S. S. Ram,S. S. Ram,S. Majumder,Punarbasu Chaudhuri,S. Chanda,Subhas Chandra Santra,P.K. Maiti,M. Sudarshan,Anindita Chakraborty +8 more
TLDR
In this article, the authors investigated the contribution of surface morphology towards plant's ability to function as dust particulate adsorber and distribution of trace elements over the leaves of Ficus benghalensis and Polyalthia longifolia.Abstract:
Urban and peri-urban vegetation is being considered for air pollution abatement. Appropriate plants with efficiency to adsorb and absorb air-pollutants are the prerequisite for green space development. The contributions of surface morphology towards plant’s ability to function as dust particulate adsorber and distribution of trace elements over the leaves are investigated in the present study. Dust interception efficiency was estimated for two roadside plant species named Ficus benghalensis, and Polyalthia longifolia. Leaves of both the plants are capable of capturing dust in the range of 0.12 mg/cm2 to 1.89 mg/cm2 on either of the leaf surfaces. However, variation in dust capturing capacity between the plants was observed. Leaf surface characters such as roughness, length, frequency of trichomes and frequency of stomata played a significant role in capturing re-suspended dust. Frequency (2 to 4 per 0.0004 cm2) and length (152.5 to 92.1 cm) of trichome showed negative co-relation trend, where as frequency and size of stomata showed positive co-relation trend. Elemental analysis by Scanning Electron Microscope attached with Energy Dispersive X-Ray Spectrometer (SEMEDS) indicated the presence of elements such as Sodium (Na), Magnesium (Mg), Aluminium (Al), Silicon (Si), Chlorine (Cl), Pottasium (K), Calcium (Ca), Iron (Fe), Zinc (Zn) and Arsenic (As). The results support the fact that plant canopies can be used for mitigation and bio-monitoring of air pollution as well.read more
Citations
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Journal ArticleDOI
A review on phytoremediation of contaminants in air, water and soil.
Zihan Wei,Quyet Van Le,Wanxi Peng,Yafeng Yang,Han Yang,Haiping Gu,Su Shiung Lam,Christian Sonne,Christian Sonne +8 more
TL;DR: The present review provides a recent update for development and applications of phytoremediation in different environments including air, water, and soil.
Journal ArticleDOI
Particulate matter pollution capture by leaves of seventeen living wall species with special reference to rail-traffic at a metropolitan station
TL;DR: In this article, the authors examined the inter-species variation of particulate capture by leaves of seventeen plant species present in a living wall at New Street railway station, Birmingham, UK.
Journal ArticleDOI
Evaluating the impact of individual leaf traits on atmospheric particulate matter accumulation using natural and synthetic leaves
TL;DR: In this article, the impact of leaf size on PM deposition was explored using synthetic leaves of different sizes (small, medium and large) but with the same shape and surface characteristics (n = 20 for each category).
Journal ArticleDOI
Using plane tree leaves for biomonitoring of dust borne heavy metals: A case study from Isfahan, Central Iran
TL;DR: In this paper, the authors evaluated the possibility of using leaves of plane trees as a bioindicator of atmospheric pollution by determining the composition of heavy elements in both the tree leaves and the atmospheric dust.
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Quantification of the traffic-generated particulate matter capture by plant species in a living wall and evaluation of the important leaf characteristics.
TL;DR: It is concluded that the use of living walls that consist largely of smaller-leaved species and conifers can potentially have a significant impact in ameliorating air quality by removing traffic-generated PM pollution to improve the wellbeing of urban dwellers.
References
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Air pollution removal by urban trees and shrubs in the United States
TL;DR: A modeling study using hourly meteorological and pollution concentration data from across the coterminous United States demonstrates that urban trees remove large amounts of air pollution that consequently improve urban air quality.
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Is Daily Mortality Associated Specifically with Fine Particles
TL;DR: The data suggest that increased daily mortality is specifically associated with particle mass constituents found in the aerodynamic diameter size range under 2.5 urn, that is, with combustion-related particles.
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Urban woodlands: their role in reducing the effects of particulate pollution.
TL;DR: The role of vegetation and urban woodlands in reducing the effects of particulate pollution is reviewed here and the improvement of urban air quality achieved by establishing more trees in towns and cities is illustrated.
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Seasonal variation of leaf dust accumulation and pigment content in plant species exposed to urban particulates pollution.
TL;DR: There was significant negative and positive correlation between dust deposition and chlorophyll and ascorbic acid content, respectively and plants can be used to intercept dust particles which are of potential health hazards to humans.