【摘要】 通过对贵州省梵净山雾水,雨水的酸度和化学组分的研究,发现雾水的pH值在4.24—5.56之间（均值4.54）,比雨水酸度（pH均值为5.69）高十倍以上。此外,雾水中的Ca²⁺和NH₄⁺含量也高于雨水。实验结果还表明:梵净山雾水与贵州中部重酸雨区降水一样,关键离子组份是H⁺、SO₄^2-、Ca²⁺和NH₄⁺.因此,梦净山的酸雾可能与贵州中部、四川东部等地排放的大气污染物向该地区的中、远距离的传输有关。更多还原

【Abstract】 Fogwater samples were collected in Fanjin Mountain, a natural reserve in northeastern Guizhou several hundred kilometers away from, major emission areas. The pH values of fogwater were found to be in the rage of 4.20 to 5.56 with a mean value of 4.54 while the average pH of lainwater at the same site was notably higher (5.69) . The average concentrations of SO42-, NH4+ and Ca2+ in fogwater reached 256,234 and 171μeq/l, respectively, about two to three times higher than those in rainwatei. The fact that these three ions are the main ionic species in both fogwatei and rainwater,and the air in Fanjin mountain is rather clean, it is suggested that there exists long range transport of air pollutants from central Guizhou or Hunan Province to this area.更多还原