空气污染是城市地区紧迫的环境问题,尤其是像德里这样人口稠密的城市,印度。然而,植物物种可以有效地捕获空气中的悬浮污染物。鉴于此,本研究旨在调查污染缓解潜力的季节性变化(季风前和季风后),生化特性,以及德里某些植物物种的悬浮颗粒物(SPM)捕获能力。此外,使用生化参数,植物形态学,和社会经济因素,该研究计算了容忍指数,如空气污染容忍指数(APTI)和预期绩效指数(API)。FicusreligiosaL.表现出最高的APTI值,为11.94,而Polyalthialongifolia(Sonn。)Thwaites在季风前期间显示了最低的7.99APTI值。无花果在叶片上显示出最大的SPM粘附力,沉积量为1305.46µg/cm2,而F.religiosa的最低SPM沉积量为56.62µg/cm2。此外,统计分析表明,抗坏血酸和叶绿素含量(R2>0.6)与APTI呈正相关。此外,F.religiosa在季风前表现出叶绿素含量与SPM沉积之间的显着Pearson相关性(P<0.05)。该研究强调了基于植物的空气污染缓解的动态性质。它为绿色基础设施作为解决城市环境中空气质量问题的可持续解决方案的潜力提供了宝贵的见解。结果强调了在制定城市绿化策略以应对空气污染时选择适当的植物物种并考虑季节性变化的重要性。
Air pollution is a pressing environmental concern in urban areas, especially in densely populated cities like Delhi, India. However, plant species can effectively capture airborne suspended pollutants. Given this, the present study aimed to investigate the seasonal variations (pre- and post-monsoon) in the pollution-mitigating potential, biochemical characteristics, and suspended particulate matter (
SPM) capturing capacities of select plant species in Delhi. Also, using biochemical parameters, plant morphology, and socioeconomic factors, the study computed tolerance indices such as the Air Pollution Tolerance Index (APTI) and Anticipated Performance Index (API). Ficus religiosa L. exhibited the highest APTI value of 11.94, while Polyalthia longifolia (Sonn.) Thwaites displayed the lowest 7.99 APTI value during the pre-monsoon. Ficus benghalensis L. showed the maximum
SPM adhesion on the leaves, with a deposition of 1305.46 µg/cm2, whereas F. religiosa exhibited the lowest
SPM deposition of 56.62 µg/cm2. Moreover, the statistical analysis indicated a positive correlation between ascorbic acid and chlorophyll content (R2 > 0.6) with APTI. Also, F. religiosa demonstrated a significant Pearson\'s correlation (P < 0.05) between chlorophyll content and
SPM deposition during the pre-monsoon. The study highlighted the dynamic nature of plant-based air pollution mitigation. It offered valuable insights into the potential of green infrastructure as a sustainable solution for addressing air quality concerns in urban environments. The results emphasized the significance of selecting adequate plant species and considering seasonal variations in developing urban greening strategies to combat air pollution.