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| 合肥市降水化学组成成分分析 | |
| 引用本文： | 唐蓉,王体健,石春娥,邓学良,陈汝龙.合肥市降水化学组成成分分析[J].气象科学,2012,32(4):459-465. |
| 作者姓名： | 唐蓉 王体健 石春娥 邓学良 陈汝龙 |
| 作者单位： | 1. 南京大学大气科学学院,南京210093;合肥市气象局,合肥230041 2. 南京大学大气科学学院,南京,210093 3. 安徽省气象科学研究所,合肥,230031 4. 合肥市气象局,合肥,230041 |
| 基金项目： | 安徽省高层次人才项目(2009Z019);公益性行业(气象)科研专项(GYHY201206011-06;GYHY200806001-1;GYHY201206011-04) |
| 摘 要： | 为研究合肥市降水的化学组成成分,于2010年4—9月在合肥市国家基本气象站设立了采样点,进行降水的采集,对降水化学组成成分进行了测定,并系统分析了化学组成成分的特点。结果表明:合肥降水中阴离子主要为SO24-,阳离子主要为NH4+和Ca2+,SO24-]/NO3-]当量浓度比值范围为1.23～6.33,大部分样本的比值<3,说明酸雨类型以硝硫混合型为主。降水的酸度与单一离子当量浓度的相关性并不明显,应该是受多种离子综合影响的结果,SO24-与NO3-,Ca2+与Mg2+,NH4+与SO24-,NH4+与NO3-均表现出较好的相关性。 |
| 关 键 词： | 酸雨 降水 化学组成成分 |
| 收稿时间： | 2011/4/20 0:00:00 |
| 修稿时间： | 7/7/2011 12:00:00 AM |
Analysis on the chemical composition of precipitation in Hefei |
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| TANG Rong,WANG Tijian,SHI Chune,DENG Xueliang and CHEN Rulong.Analysis on the chemical composition of precipitation in Hefei[J].Scientia Meteorologica Sinica,2012,32(4):459-465. | |
| Authors: | TANG Rong WANG Tijian SHI Chune DENG Xueliang and CHEN Rulong |
| Institution: | School of Atmospheric Sciences, Nanjing University,Nanjing 210093,China;Hefei Meteorological Bureau, Hefei 230041,China;School of Atmospheric Sciences, Nanjing University,Nanjing 210093,China;Anhui Institute of Meteorological Sciences, Hefei 230031,China;Anhui Institute of Meteorological Sciences, Hefei 230031,China;Hefei Meteorological Bureau, Hefei 230041,China |
| Abstract: | To investigate the chemical features of precipitation in Hefei, precipitation samples were collected and analyzed during April to September, 2010. The chemical characteristics of rainwater were discussed. The major anions was SO42-, and the major cations were NH4+ and Ca2+. The ratio of SO42-]/NO3-] ranged from 1.23 to 6.33, it was below 3.0 in the most cases, this fact suggested that the acid rain in Hefei belonged to sulfuric and nitric acid mixture. No significant correlation was found between the acidity of precipitation and any single ion concentration. The acidity was decided by multiple ions. Significant correlations were observed between SO42- and NO3-,Ca+2 and Mg+2,NH4+ and SO42-,NH4+ and NO3-. |
| Keywords: | Acid rain Precipitation Chemical composition |
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