Plant-based remediation of air pollution: A review

Han, Yang‐Su; Lee, Jechan; Gu, Haiping; Kim, Ki‐Hyun; Peng, Wanxi; Bhardwaj, Neha; Oh, Jong Min; Brown, Richard

doi:10.1016/j.jenvman.2021.113860

Cited by 62 publications

(36 citation statements)

References 70 publications

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“…24,25 Though the net amounts of PM on leaves may not quantitatively estimate the PM and its chemical components in the air, it is generally regarded as a bio-monitoring tool for assessing the pollution status of airborne PM and its associated chemical components. 42 Higher levels of submicron soot in cold seasons than in warm seasons at the sampling site of Nanjing, which supported the previous study that greater levels of ambient submicron elemental carbon were observed in winter at northern Nanjing because of the enhanced emission of fossil fuels. 43 Our study is unable to assess the roles of Platanus acerifolia leaves in estimating the ambient submicron soot particles quantitatively due to the lack of the concentration data of submicron soot particles in the air.…”

Section: Resultssupporting

confidence: 88%

Direct measurement of the deposition of submicron soot particles on leaves of Platanus acerifolia tree

Tao

Liu

Schauer

2022

Environ. Sci.: Processes Impacts

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Section: Resultssupporting

confidence: 88%

Direct measurement of the deposition of submicron soot particles on leaves of Platanus acerifolia tree

Tao

Liu

Schauer

2022

Environ. Sci.: Processes Impacts

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“…Our work further implicates plants as a viable naturebased solution for air quality improvement and to defend against pathogenic outbreaks of infectious diseases. The findings of this study may also complement current research on plantsourced biogenic volatile organic compounds, alkaloids, and polyphenols which have been known [15][16][17] . In biogeochemical cycles, H2O2 generation by plants may impact boundary layer atmospheric H2O2 concentrations.…”

supporting

confidence: 61%

Spontaneous generation of exogenous hydrogen peroxide by plants

Samadi

Sharifyazd

Cabling

et al. 2023

Preprint

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Plants play important roles in maintaining air quality and biogeochemical cycles, although many mechanisms remain poorly understood. Recently, spontaneous production of hydrogen peroxide (H2O2) has been reported from the condensation of water vapor as microdroplets. Here, we report detection of H2O2 in proximity to plants undergoing photosynthesis in a closed environment, confirmed using commercial peroxide test strips and spectrophotometric titration. Our results have potential major implications for the role of plant-mediated atmospheric cleansing, climate change, and urban and indoor air quality.

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“…First, VOC molecules, which diffuse to plants, can be fixed on the leaves surface by crude wax and then enter the interior of shoot through passive diffusion or active absorption (Redondo-Bermúdez et al 2021 ; Treesubsuntorn et al 2013 ). Second, VOC molecules can be accumulated in plant tissues and degraded by plant metabolism as well as downward transported to the root through the phloem (Han et al 2021 ). Physiological indexes such as chlorophyll content, relative permeability of plasma membrane, and peroxidase content will change when plants experience a stress condition (Teiri et al 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Transport and removal mechanism of benzene by Tradescantia zebrina Bosse and Epipremnum aureum (Linden ex André) G.S. Bunting in air-plant-solution system

et al. 2023

Environ Sci Pollut Res

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Phytoremediation is considered an effective method for indoor air pollution control. The removal rate and mechanism of benzene in air by two plants, Tradescantia zebrina Bosse and Epipremnum aureum (Linden ex André) G. S. Bunting, were investigated through fumigation experiments under the condition of plant hydroponics culturing. Results showed that the plant removal rates increased with increase in benzene concentration in air. When the benzene concentration in air was set at 432.25–1314.75 mg·m −3 , the removal rates of T. zebrina and E. aureum ranged from 23.05 ± 3.07 to 57.42 ± 8.28 mg·kg –1 ·h –1 FW and from 18.82 ± 3.73 to 101.58 ± 21.20 mg·kg –1 ·h –1 FW, respectively. The removal capacity was positively related to the transpiration rate of plants, indicating that gas exchange rate could be a key factor for the evaluation of removal capacity. There existed fast reversible transport of benzene on air-shoot interface and root-solution interface. After shoot exposure to benzene for 1 h, downward transport was the dominant mechanism in the removal of benzene in air by T. zebrina , while in vivo fixation was the dominant mechanism at exposure time of 3 and 8 h. Within 1–8 h of shoot exposure time, in vivo fixation capacity was always the key factor affecting the removal rate of benzene in the air by E. aureum . Contribution ratio of in vivo fixation in the total benzene removal rate increased from 6.29 to 92.29% for T. zebrina and from 73.22 to 98.42% for E. aureum in the experimental conditions . Reactive oxygen species (ROS) burst induced by benzene exposure was responsible for the contribution ratio change of different mechanisms in the total removal rate, which also was verified by the change of activities of antioxidant enzymes (CAT, POD, and SOD). Transpiration rate and antioxidant enzyme activity could be considered parameters to evaluate the plant removal ability to benzene and to screen plants for establishment of plant-microbe combination technology.

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Plant-based remediation of air pollution: A review

Cited by 62 publications

References 70 publications

Direct measurement of the deposition of submicron soot particles on leaves of Platanus acerifolia tree

Direct measurement of the deposition of submicron soot particles on leaves of Platanus acerifolia tree

Spontaneous generation of exogenous hydrogen peroxide by plants

Transport and removal mechanism of benzene by Tradescantia zebrina Bosse and Epipremnum aureum (Linden ex André) G.S. Bunting in air-plant-solution system

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