Application of the Peat Archive as Tool in Environmental Chemistry (APATEC)

泥炭档案作为环境化学工具的应用（APATEC）

• 批准号: 33483586
• 负责人: Dr. Michael Radke
• 金额: --
• 依托单位: Institut für Hygiene und Umwelt
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2007
• 资助国家: 德国
• 起止时间: 2006-12-31 至 2010-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/33483586?language=en
• 关键词: Application; Peat; Archive; Tool; Environmental

Among the potential archives for atmospheric deposition of contaminants, ombrotrophic (rain-fed) bogs and lake sediments are the most promising ones. Sediment profiles are already being regularly used as tool in environmental chemistry; in contrast, the peat archive has so far mostly been studied at single locations, or only individual groups of contaminants have been analyzed. Aim of this project is to demonstrate and apply the full potential of the peat archive as diagnostic tool in environmental chemistry. To these ends, we will analyze multiple classes of organic and inorganic compounds, i.e. polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), and polybrominated diphenyl-ethers (PBDEs) together with trace metals like arsenic, chromium, and mercury. An industrial area in Eastern Canada will be taken as defined source area, and the spatio-temporal deposition pattern of contaminants to bogs located on a 400km-transect up- and downwind the source area will be determined. The results will be analyzed using dispersion and receptor modelling, and the contaminant deposition data will be used to validate compound-specific transport parameters like characteristic travel distances that so far have only been determined by model calculations.

在污染物大气沉积的潜在档案中，雨养（雨养）沼泽和湖泊沉积物是最有希望的。沉积物剖面已经被经常用作环境化学的工具;相比之下，泥炭档案迄今为止主要是在单一地点进行研究，或者只分析了个别污染物组。该项目的目的是展示和应用泥炭档案作为环境化学诊断工具的全部潜力。为此，我们将分析多种类型的有机和无机化合物，即多环芳烃（PAH），多氯联苯（PCB）和多溴联苯醚（PBDE）以及痕量金属，如砷，铬和汞。将加拿大东部的一个工业区作为定义的源区，并将确定污染物在源区上下风400 km断面上的沼泽中的时空沉积模式。将使用扩散和受体模型对结果进行分析，污染物沉积数据将用于验证特定化合物的迁移参数，如迄今为止仅通过模型计算确定的特征迁移距离。