摘要
本文对郑州市降水污染状况进行了分析。郑州市降水酸性较弱，基本为非酸雨。降水中阴阳离子浓度均较高，具有典型的煤烟型特征。其形成主要受煤烟型大气污染和自然扬尘的影响。通过对特征参数１（为１２ＳＯ２－４／ＮＯ－３）、特征参数２（为（１２Ｃａ２＋＋１２Ｍｇ２＋）／ＮＨ＋４）、特征参数３（为∑Ａ＋／∑Ｂ－）的分析研究，得出近几年郑州市降水的煤烟型污染特征在加重，降水酸度变化不大。
The paper analyses precipitation pollution in Zhengzhou. Both anionoid and cationoid concentration is high. and the coal-fired characteristic is indicated. The major factors for its formation are the coal-fired air pollution and free dirt. The precipitation is little acidulated and almost no acid rain. From the study on character parameter one (is 12SO 2- 4/NO - 3)、character parameter two (is (12Ca 2+12Mg 2+ )/NH + 4)、character parameter three (is ∑A +/∑B -), it is found that the coal-fired characteristic of precipitation is still increasing and acidity is not too changing.
出处
《河南科学》
1998年第1期114-118,共5页
Henan Science
关键词
降水
酸度
离子组份
煤烟型
大气污染
Precipitation, Acidity, Ion composition, Coal-fired
