Graduate Theses & Dissertations

Mercury and Persistent Organic Pollutants in Remote Acid Sensitive Irish Lake Catchments
A catchment-based study was carried out at three remote acid sensitive Irish lakes to determine concentrations of Hg and POPs and to investigate the factors governing the partitioning of these pollutants in various environmental matrices. Both Hg and POPs are an environmental concern due to their ability to travel long distances via atmospheric transport and their tendency to accumulate in biota and in various environmental compartments. Concentrations of POPs and Hg measured in this study were relatively low and consistent with concentrations measured at background levels around the world. Mercury concentrations appeared to be influenced by various site characteristics, specifically organic matter. Many of the POPs examined in this study appeared to be present as a result of long-range transport and more specifically; the physico-chemical properties of POPs appeared to dictate their distribution within soils, moss and sediment at each of the study catchments. Author Keywords:

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