MONARPOP — Results of dioxin and PCB measurements in air and deposition

At the three Alpine peaks Sonnblick (A), Weißfluhjoch (CH) and Zugspitze (D), air concentrations and depositions of persistent organic pollutants (POPs) have been recorded as part of the MONARPOP project since 2005. For this purpose, a technology has been developed that allows to collect year-round in alpine weather conditions and separately according to regions of origin of the air masses. The report covers the results 2005-2013 for polychlorinated dibenzodioxins and furans (PCDD/F) and polychlorinated biphenyls (PCBs). PCDD/F and PCB air concentrations at the three Alpine peaks are one to two orders of magnitude lower than in emitter-near areas. However, the depositions are similar to those at near source sites — a proof of the presence of these pollutants in remote regions. The results serve to monitor the effectiveness of the UN Stockholm Convention on POPs and can be found in the related Global Monitoring Report.自2005年起，作为MONARPOP项目的研究内容之一，研究人员在阿尔卑斯山三座山峰——松布利克峰（Sonnblick, A）、魏斯弗卢赫约赫峰（Weißfluhjoch, CH）与楚格峰（Zugspitze, D）——持续记录了持久性有机污染物（persistent organic pollutants, POPs）的大气浓度与沉降情况。为此，研究团队开发了专属采样技术，可在阿尔卑斯山地复杂气象条件下全年不间断采集样品，并可依据气团来源区域实现分类采样。本数据集涵盖了2005至2013年间，针对多氯二苯并二噁英与多氯二苯并呋喃（polychlorinated dibenzodioxins and furans, PCDD/F）以及多氯联苯（polychlorinated biphenyls, PCBs）的监测结果。三座阿尔卑斯山峰处的PCDD/F与PCBs大气浓度，较污染源邻近区域低1至2个数量级；但此类污染物的沉降水平却与污染源邻近站点的数值相近，这证实了偏远区域中此类污染物的存在。本监测结果可用于评估联合国《关于持久性有机污染物的斯德哥尔摩公约》的履约成效，相关数据亦可查阅同期发布的《全球监测报告》。