三明市降水酸碱性成因研究

Study on the Formative Cause of Acid and Alkaline Rain in Sanming City

本文分析了三明市在南、北相差仅4km的两个测点,对于经常一边下硫酸盐型酸雨,另一边下钙盐型碱雨这一特殊降水过程,选择典型的几场酸性、碱性降水,从离子成份、离子浓度比进行分析,并从局部污染源、气象等因素就其成因作了探索性研究,结果表明,三明市降水的污染十分严重,在重视酸性降水污染的同时,也不应忽视污染更为严重的碱性降水.

The Phenomena that the properties of the rain at two monitoring spots lying in the south and north of Sanming City with the distance of four kilometers were obviously different , the rain at one spot belonging to the sulphate type acid rain while the rain at the other spot belonging to the calcium type rain, often occur. Some representative acid and alkaline rains were selected to analysis on the constitution and strength ratio of the ions. The influences of some facts were further discussed. The result obtained from the data indicated that not only the damages of the acid rain but also those of the alkaline rain deserve our attentions.