Air pollution can be determined by using plants as a bioindicator. The purposes of this research were 1) to determine the ambient air Pb concentration and Pb concentration in some leaves of wayside trees on Jl Jenderal Soedirman Purwokerto, 2) to find out the stomata characteristics i.e. size and density of stomata related to their ability to absorb Pb. The research method used was the survey method. The wayside tree leaf samples were taken with purposive sampling. The variables used in the research include variables such as aerial Pb and Pb concentrations of leaves, while the dependent variable was anatomical responses. The main parameters observed in the form of air Pb concentrations, Pb in leaf and stomata anatomical characters. The support parameters are traffic density. The results of this study showed that the concentration of Pb in Jl Jenderal Sudirman within 1 hour is 0.0147 μg/m. Pb concentration was the highest in the leaves of Schima wallichii (0.3524 ppm), and the lowest was in Hibiscus tiliaceus (0.2354 ppm). Pb accumulated in the leaves caused a very significant effect on the density, length, and width of the leaf stomata of shade plant on Purwokerto’s Jenderal Sudirman Road. Pb concentration in leaves positively correlated with the density, length, and width of stomata (p<0.05).

空气污染可以通过使用植物作为生物指标来确定。本研究的目的是 1) 确定 Jl Jenderal Soedirman Purwokerto 路边树木的一些叶子中的环境空气 Pb 浓度和 Pb 浓度，2) 找出与其吸收能力相关的气孔特征，即气孔的大小和密度铅。所采用的研究方法是调查法。路边的树叶样本是通过有目的的抽样来采集的。研究中使用的变量包括空中铅和叶片铅浓度等变量，而因变量是解剖反应。观察到的主要参数有空气中铅浓度、叶片中铅和气孔的解剖特征。支持参数是流量密度。本研究结果表明，Jl Jenderal Sudirman 1 小时内 Pb 浓度为 0.0147 μg/m。叶片中铅浓度最高Schima wallichii (0.3524 ppm)，最低的是Hibiscus tiliaceus (0.2354 ppm)。铅在叶片中的积累对 Purwokerto 的 Jenderal Sudirman 路遮荫植物叶片气孔的密度、长度和宽度产生了非常显着的影响。叶片中Pb浓度与气孔的密度、长度和宽度呈正相关（p<0.05）。