The moss biomonitoring technique was used for the assessment of air pollution in the Republic of Moldova, in the framework of the UNECE ICP Vegetation Programme. The content of 11 chemical elements (Al, V, Cr, Fe, Ni, Zn, As, Sb, Cd, Cu, and Pb) was determined by neutron activation analysis and atomic absorption spectrometry in samples collected in spring 2020. Distribution maps were built to identify the most polluted sites. The highest concentrations of elements in mosses were determined in the north-eastern, central, and western parts of the country. The main element associations were identified using factor analysis. Three factors were determined, of which one of mixed geogenic–anthropogenic origin and two of anthropogenic origin. A comparison of the data obtained in 2020 and 2015 showed a significant decrease in the concentrations of Cr, As, Sb, Cd, Pb, and Cu in 2020. The state of the environment was assessed using Contamination Factor and Pollution Load Index values, which characterized it as unpolluted to moderately polluted. Possible air pollution sources in the Republic of Moldova are resuspension of soil particles, agricultural practices, vehicles, industry, and thermal power plants.

在 UNECE ICP 植被计划的框架内，苔藓生物监测技术被用于评估摩尔多瓦共和国的空气污染。采用中子活化分析和原子吸收光谱法测定了2020年春季采集的样品中11种化学元素（Al、V、Cr、Fe、Ni、Zn、As、Sb、Cd、Cu和Pb）的含量。分布图为旨在识别污染最严重的地点。在该国东北部、中部和西部地区确定了苔藓中元素的最高浓度。使用因子分析确定主要元素关联。确定了三个因素，其中一个是混合的地质-人为起源，两个是人为起源。对比 2020 年和 2015 年获得的数据显示，Cr、As、2020 年的 Sb、Cd、Pb 和 Cu。使用污染因子和污染负荷指数值评估环境状况，将其表征为未污染到中度污染。摩尔多瓦共和国可能的空气污染源是土壤颗粒的再悬浮、农业实践、车辆、工业和热电厂。