【摘要】 对我国沿海和西北地区降水化学特性进行了对比分析,结果表明:西北地区降水中各种离子浓度都高于沿海地区,而沿海地区降水中H+的比例则远远高于西北地区,西北地区降水特性主要是受陆地源影响,沿海地区则主要受工业污染.两地NO3-/SO42-较低,降水中酸的性质主要表现为硫酸特征.更多还原

【Abstract】 The chemical characteristics of precipitation in coastal and northwestern area of China are compared and analyzed in this paper. Results showed some dissimilarities and similarities. Almost all ion concentrations except H+ in precipitation of northwestern China are greater than that in coastal areas. H+ is much greater in coastal areas than in northwestern areas. The chemical characteristics of precipitation in northwestern China is mainly affected by continental materials, while coastal areas is mainly affected by industrial pollution. The ratio of NO3-/SO42- in these two areas are relatively low, the acidity in the precipitation is mainly in the form of sulfuric acid.更多还原