Nowak Bartosz, Czaplicka Marianna
Institute for Ecology of Industrial Areas, 6 Kossutha Str., 40-844 Katowice, Poland.
Institute of Non-Ferrous Metals, 5 Sowińskiego Str., 44-100 Gliwice, Poland.
Water Air Soil Pollut. 2015;226(12):403. doi: 10.1007/s11270-015-2666-1. Epub 2015 Nov 9.
For many years, atmospheric mercury has been perceived as a global pollutant. Transport of mercury compounds in the atmosphere and its deposition on the earth's surface is an important issue that requires knowledge regarding the circulation of the various forms of this metal between environmental components. There are many numerical models that can be used to study and image this phenomenon. These models are based on data concerning mercury emission sources, concentrations of this contaminant on modelling areas and meteorological data to assess air mass inflow on a regional and global scale. A method to assess mercury deposition fluxes on a local scale based only on stream intensity analysis of mercury is proposed in this study. Mercury deposition fluxes (bulk) that were assessed by the MDC method at the Zloty Potok station (regional background station for the Silesian Agglomeration) varied from 22.8 μg · m · year (an 8-month period in 2013) to 54.2 μg · m · year in 2012. Developing procedures to estimate the mercury deposition coefficient (MDC) is useful in areas where only meteorological parameters and mercury concentrations in the atmospheric air are measured. The obtained deposition coefficient values enable quantification of a selected pollutant concentration and its potential impact resulting from deposition.
多年来，大气汞一直被视为一种全球污染物。汞化合物在大气中的传输及其在地球表面的沉积是一个重要问题，这需要了解这种金属的各种形态在环境组分之间的循环情况。有许多数值模型可用于研究和描绘这一现象。这些模型基于有关汞排放源的数据、建模区域内这种污染物的浓度以及气象数据，以评估区域和全球尺度上的气团流入情况。本研究提出了一种仅基于汞的水流强度分析来评估局部尺度汞沉积通量的方法。通过MDC方法在兹洛蒂波托克站（西里西亚集聚区的区域背景站）评估的汞沉积通量（总量）在2013年的8个月期间为22.8μg·m·年，到2012年为54.2μg·m·年。在仅测量气象参数和大气空气中汞浓度的地区，开发估算汞沉积系数（MDC）的程序很有用。获得的沉积系数值能够量化选定污染物的浓度及其沉积产生的潜在影响。
