摘要
对滁州市2006~2009年降水的化学组成特征进行了连续4年的监测。监测结果表明,滁州市2008年和2009年降水为酸性降水,其pH值分别为5.09和5.06,酸雨频率分别为10.4%和31.6%;其酸性降水季节变化较为明显,秋、冬两季较高,夏季次之,降水中SO42-/NO3-的比值范围0.50~1.42,呈上升趋势,表明滁州市酸雨类型正逐步由硫酸、硝酸并重型向硫酸型转变;降水中Ca2＋、Mg2＋浓度逐年增大,Ca2＋、Mg2＋对降水酸性的中和作用逐年提高。结合滁州市实际情况,提出了切实可行的防治措施和建议。
The chemical characteristic of ously. The results showed that Acid rain precipitation in Chuzhou City have been monitored four years continu- happened in 2008 and 2009. The pH values varied from 5.09 to 5.06, and the frequency of acid rain varied from 10.4% to 31.6%. Seasonal variation of precipitation acidity was obvious in Chuzhou City, high in autumn and winter, low in summer. The SO42- / NO3- ratios varied from 0.50 to 1. 42 with a rising tend, which suggested to sulfuric acid type. The concentration cidity of rainwater. At last, this article the type the acid rain of Chuzhou City varied sulfuric and nitric acid type of Ca2＋ and Mg2＋ tended to rise year and year, which neutralized the a- gave a series of preventive countermeasures.
出处
《安徽科技学院学报》
2011年第4期34-36,共3页
Journal of Anhui Science and Technology University
关键词
酸雨
化学组成
防治措施
Acid rain
Chemical composition
Preventive countermeasures
