The paper reports chemical data on the atmospheric precipitation within the studied area of the Valdai National Park during monitoring in 2015–2018. The main parameters of atmospheric precipitation as well as major and trace-element compositions of waters are analyzed. Seasonal dynamics and possible pathways of element uptake in atmospheric precipitation are considered. Multidimensional statistical analysis (PCCA, RDA analyses) was applied to determine geochemical and anthropogenic factors responsible for the formation of the chemical composition of atmospheric precipitation. Precipitations penetration through tree crown are enriched in organic matter and some elements. The high contents of N, Fe, Mn, Zn, and Cu found in subcrown waters indicate a predominant biogenic migration of the elements with atmospheric fallouts. The elevated contents of Cu and Zn, as well as Cd and Pb in the atmospheric fallouts of the Valdai National Park suggest that the studied area experiences a regional-scale anthropogenic load.

中文翻译：

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瓦尔代国家公园条件背景区大气降水形成的地球化学趋势

该论文报告了 2015-2018 年监测期间瓦尔代国家公园研究区域内大气降水的化学数据。分析了大气降水的主要参数以及水体的主要和微量元素组成。考虑了大气降水中元素吸收的季节性动态和可能的途径。应用多维统计分析（PCCA、RDA 分析）来确定造成大气降水化学成分形成的地球化学和人为因素。通过树冠渗透的降水富含有机质和一些元素。在亚冠水域中发现的高含量的 N、Fe、Mn、Zn 和 Cu 表明这些元素主要由大气沉降物进行生物迁移。