中国贵州大气汞的沉降(英文)

Atmospheric mercury deposition in Guizhou of China

研究贵州省主要中心城市及自然保护区大气汞的沉降。测定大气中总汞、二价汞、甲基汞 ,用 Moss Bag、涂层KCl扩散管 (Denuder)、便携式大气测汞仪进行测定与评价。在国际上首次报道大气汞的沉降和汞沉降瞬间和相对空间变化关系以及煤汞引起的污染。

The atmospheric deposition of mercury was investigated including total gas phase mercury(TGM), gas phase divalent mercury (Hg 2+ ),and gas phase monomethyl mercury (MMHg) .Samples were collected from central cities and nature reserve areas across the province.Techniques and equipment including mossbag,KCl coated denuder and GARDIS 1A portable mercury vapor analyzer were employed for sample collection and analysis.The reliability of techniques and analytical methods used for the project was evaluated.The deposition of atmospheric mercury was reported in species in this important mercury polluted province for the first time.The spatial and temporal variability of mercury emissions were investigated and reported.Contribution of coal mercury emissions to the atmosphere mercury deposition of the province was also investigated.