Assessment of the Reverberations Caused by Predominant Air Pollutants on Urban Vegetation: A Multi-Site Study in Varanasi Located in Indo-Gangetic Plains

IF 2.7 4区 环境科学与生态学 Q3 ENERGY & FUELS Greenhouse Gases: Science and Technology Pub Date : 2023-04-05 DOI:10.3390/gases3020004
Harshita Singh, Pankaj Singh, S. B. Agrawal, M. Agrawal
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引用次数: 1

Abstract

Plant responses to air pollution have been extensively studied in urban environments. Nevertheless, detailed and holistic studies assessing their retaliation to air contaminants are still limited. The present study evaluates the effect of criteria pollutants (SO2, NO2, PM10 and O3) on the overall biochemistry and resource allocation strategy of plants in order to categorize the dominant roadside species (Mangifera indica, Psidium guajava, Ficus religiosa, Azadirachta indica, Dalbergia sissoo, Cascabela thevetia and Bougainvillea spectabilis) of the Indo-Gangetic Plains (IGP), with different morphologies and habits, into species that are tolerant and sensitive to the prevailing air pollutants. This study was performed at three different land-use sites (industrial, commercial and reference) in Varanasi for two seasons (summer and winter). It was inferred that NO2 and PM10 consistently violated the air quality standards at all the sites. The fifteen assessed parameters reflected significant variations depending upon the site, season and plant species whereupon the enzymatic antioxidants (superoxide dismutase and catalase) and resource utilization parameters (leaf area and leaf dry matter content) were remarkably affected. Based on the studied parameters, it was entrenched that deciduous tree species with compound leaves (D. sissoo > A. indica) were identified as the less sensitive, followed by a shrub (C. thevetia > B. spectabilis), while evergreen species with simple leaves were the most sensitive. It was also substantiated that the morphology of the foliage contributed more toward the differential response of the plants to air pollutants than its habit.
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主要空气污染物对城市植被影响的评价:位于印度恒河平原瓦拉纳西的多站点研究
植物对空气污染的响应在城市环境中得到了广泛的研究。然而,评估它们对空气污染物的报复的详细和全面的研究仍然有限。本研究通过评价标准污染物(SO2、NO2、PM10和O3)对植物整体生物化学和资源配置策略的影响,对印度恒河平原(IGP)不同形态和习性的优势路边种(Mangifera indica、Psidium guajava、Ficus religiosa、Azadirachta indica、Dalbergia sissoo、Cascabela thevetia和Bougainvillea spectabilis)进行分类。变成了对空气污染物耐受和敏感的物种。这项研究在瓦拉纳西的三个不同的土地利用地点(工业、商业和参考)进行,为期两个季节(夏季和冬季)。由此推断,所有站点的二氧化氮和可吸入颗粒物均持续违反空气质量标准。15个评价参数随地点、季节和植物种类的不同而发生显著变化,酶抗氧化剂(超氧化物歧化酶和过氧化氢酶)和资源利用参数(叶面积和叶干物质含量)受到显著影响。结果表明,落叶复叶树种(D. sissoo > a . indica)的敏感性最低,灌木次之(C. thevetia > B. spectabilis),而常绿单叶树种的敏感性最高。叶片形态对植物对空气污染物的差异响应的贡献大于其习性。
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来源期刊
Greenhouse Gases: Science and Technology
Greenhouse Gases: Science and Technology ENERGY & FUELS-ENGINEERING, ENVIRONMENTAL
CiteScore
4.90
自引率
4.50%
发文量
55
审稿时长
3 months
期刊介绍: Greenhouse Gases: Science and Technology is a new online-only scientific journal dedicated to the management of greenhouse gases. The journal will focus on methods for carbon capture and storage (CCS), as well as utilization of carbon dioxide (CO2) as a feedstock for fuels and chemicals. GHG will also provide insight into strategies to mitigate emissions of other greenhouse gases. Significant advances will be explored in critical reviews, commentary articles and short communications of broad interest. In addition, the journal will offer analyses of relevant economic and political issues, industry developments and case studies. Greenhouse Gases: Science and Technology is an exciting new online-only journal published as a co-operative venture of the SCI (Society of Chemical Industry) and John Wiley & Sons, Ltd
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