The ability of lichen transplant Evernia prunastri (L.) Ach. to reflect air concentration and spatial distribution of 7 polychlorinated dibenzodioxins (PCDDs), 10 polychlorinated dibenzofurans (PCDFs), and 23 polychlorinated biphenyls (PCBs) was evaluated through the construction of a wide and dense biomonitoring network. For this purpose, 23 lichen transplants were placed in a highly polluted area in Central Italy, characterized by the presence of different local emission sources such as a power plant, a steel plant, vehicular traffic, and domestic heating. The high spatial resolution data obtained from lichens were used to map the spatial distribution of the studied compounds, useful to identify the location and strength of target compounds sources over the territory. The maps showed that the highest concentrations of the pollutants were detected, as expected, in the sites close to the power plant and to the steel plant, confirming their important role as persistent pollutants emission sources. The statistical analysis performed on the spatially resolved data allowed us to identify the steel plant as the main source of PCDD/Fs, while PCBs were emitted by both the steel plant and the power plant. Finally, the efficiency of lichen transplants to reflect PCDD/Fs and PCBs atmospheric concentrations was assessed by comparing lichen data with POPs deposition measured by bulk deposition samplers at sites impacted by intensive emission sources; good results were achieved from the comparison (R² > 0.79). Lichen transplants have demonstrated to be suitable biomonitors of POPs, allowing to obtain a high spatial monitoring network. The low-cost biomonitoring and experimental approach described in this study can be applied to other monitoring campaigns for identifying localizing emission sources of POPs in areas contaminated by several disaggregated sources.

地衣移植能力Evernia prunastri（L.）通过建立广泛而密集的生物监测网络，对7种多氯二苯并二恶英（PCDD），10种多氯二苯并呋喃（PCDF）和23种多氯联苯（PCB）的空气浓度和空间分布进行了评估。为此，在意大利中部一个污染严重的地区放置了23个地衣移植，其特征是存在不同的局部排放源，例如发电厂，钢铁厂，车辆通行和家庭取暖。从地衣获得的高空间分辨率数据可用于绘制所研究化合物的空间分布图，有助于确定目标化合物在整个地区的位置和强度。这些图表明，如预期的那样，在电厂和钢厂附近的场地中，污染物的浓度最高，证实了它们作为持久性污染物排放源的重要作用。对空间分解数据进行的统计分析使我们能够确定钢厂是PCDD / Fs的主要来源，而钢厂和发电厂都排放了PCB。最后，通过将地衣数据与由大量沉积物采样器在受强排放源影响的地点测量的持久性有机污染物沉积物进行比较，评估了地衣移植物反映PCDD / Fs和PCBs大气浓度的效率。通过比较获得了良好的结果（R 确认其作为持久性污染物排放源的重要作用。对空间分解数据进行的统计分析使我们能够确定钢厂是PCDD / Fs的主要来源，而钢厂和发电厂都排放了PCB。最后，通过将地衣数据与由大量沉积物采样器在受强排放源影响的地点测量的持久性有机污染物沉积物进行比较，评估了地衣移植物反映PCDD / Fs和PCBs大气浓度的效率。通过比较获得了良好的结果（R 确认其作为持久性污染物排放源的重要作用。对空间分解数据进行的统计分析使我们能够确定钢厂是PCDD / Fs的主要来源，而钢厂和发电厂都排放了多氯联苯。最后，通过将地衣数据与由大量沉积物采样器在受强排放源影响的地点测量的持久性有机污染物沉积物进行比较，评估了地衣移植物反映PCDD / Fs和PCBs大气浓度的效率。通过比较获得了良好的结果（R 通过将地衣数据与POPs沉积物进行比较，评估地衣移植物反映PCDD / Fs和PCBs大气浓度的效率，POPs沉积物是由大量沉积物采样器在受强烈排放源影响的地点测得的；通过比较获得了良好的结果（R 通过将地衣数据与POPs沉积物进行比较，评估地衣移植物反映PCDD / Fs和PCBs大气浓度的效率，POPs沉积物是由大量沉积物采样器在受强烈排放源影响的地点测得的；通过比较获得了良好的结果（R²  > 0.79）。地衣移植物已被证明是适合持久性有机污染物的生物监测器，可以得到一个高空间监测网络。这项研究中描述的低成本生物监测和实验方法可以应用于其他监测活动，以识别由几种分类来源污染的地区的持久性有机污染物的局部排放源。