Active green wall plant health tolerance to diesel smoke exposure
Active green wall plant health tolerance to diesel smoke exposure
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DOI：
10.1016/j.envpol.2018.05.004
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发表时间：
2018-09-01
影响因子：
8.9
通讯作者：
Torpy, Fraser R.
中科院分区：
文献类型：
--
作者：
Paull, Naomi J.;Irga, Peter J.;Torpy, Fraser R.
空气质量差是一个新出现的世界性问题，大多数城市空气污染物来自车辆排放。因此，交通隧道等局部高污染环境会带来重大的健康风险。植物修复，包括使用活性（通风）绿墙或植物生物过滤器，作为一种潜在有效的空气污染控制方法正在获得认可。迄今为止的研究已经测试了这些系统去除室内环境中低水平污染物的能力。如果要在高度污染的环境中使用植物生物过滤器，这些系统中使用的植物必须具有弹性，然而，这一想法得到的研究很少。因此，进行了测试以评估植物生物过滤器的植被成分对模拟街道空气污染物暴露的耐受性。在暴露于高浓度柴油燃烧废水 5 周之前和之后，对 8 种常见的绿墙植物进行了一系列形态、生理和生化测试；作为调查原位条件下可行性的试点研究。结果表明，无花果科的物种是所评估物种中耐受性最强的物种。无花果科的物种很可能能够承受增强的空气污染条件，这可能是其叶子形态和生理学的结果。其他接受测试的物种均对污染处理具有中等耐受性。我们得出的结论是，大多数常见的绿墙植物物种具有承受高污染环境的能力，但是，需要进行扩展实验来排除潜在的长期影响以及由于对基材的累积影响而导致的过滤效率的潜在降低。 (C) 2018 Elsevier Ltd. 保留所有权利。
Poor air quality is an emerging world-wide problem, with most urban air pollutants arising from vehicular emissions. As such, localized high pollution environments, such as traffic tunnels pose a significant health risk. Phytoremediation, including the use of active (ventilated) green walls or botanical biofilters, is gaining recognition as a potentially effective method for air pollution control. Research to date has tested the capacity of these systems to remove low levels of pollutants from indoor environments. If botanical biofilters are to be used in highly polluted environments, the plants used in these systems must be resilient, however, this idea has received minimal research. Thus, testing was conducted to assess the hardiness of the vegetated component of a botanical biofilter to simulated street level air pollutant exposure. A range of morphological, physiological, and biochemical tests were conducted on 8 common green wall plant species prior to and post 5-week exposure to highly concentrated diesel fuel combustion effluent; as a pilot study to investigate viability in in situ conditions. The results indicated that species within the fig family were the most tolerant species of those assessed. It is likely that species within the fig family can withstand enhanced air pollutant conditions, potentially a result of its leaf morphology and physiology. Other species tested were all moderately tolerant to the pollution treatment. We conclude that most common green wall plant species have the capacity to withstand high pollutant environments, however, extended experimentation is needed to rule out potential long term effects along with potential decreases in filter efficiency from accumulative effects on the substrate. (C) 2018 Elsevier Ltd. All rights reserved.