摘要
对云阳县2007—2014年降水监测数据进行统计,分析了大气降水量、pH值的年际变化和月际变化。研究结果表明:云阳县降水pH值年均值范围为4.84~5.39,月均值范围为4.20~6.36;酸雨最多出现在冬季,春、秋季次之,夏季相对较轻;SO_4^(2-)/NO_3^-为5.27,表明云阳县的酸雨属于硫酸型污染。
The precipitation monitoring data of Yunyang County in 2007 -2014 were statistically analyzed to explore the interannual variability and inter- monthly variability of precipitation volume and pH value. The results showed that the range of annual average pH value was 4. 84 - 5.39 and the range of month average value was 4. 20 6.36. Acid rain mostly happened in winter, spring and autumn, and less in summer. The ratio of SO4^2- and NO3 ^-was 5.27, which indicated that the acid rain in Yunyang belonged to sulfuric acid type pollution.
出处
《环境科学导刊》
2016年第1期48-50,共3页
Environmental Science Survey
关键词
降水
酸雨
离子
变化
云阳县
precipitation
acid rain
ion
change
Yunyang County
