| 重庆市大气PM_(10)中水溶性离子组分的研究 |
| |
| 引用本文： | 蒋昌潭,张丹,郑建军.重庆市大气PM_(10)中水溶性离子组分的研究[J].环境科学与技术,2009,32(7). |
| |
| 作者姓名： | 蒋昌潭 张丹 郑建军 |
| |
| 作者单位： | 重庆市环境科学研究院,重庆,401147 |
| |
| 摘 要： | 为研究重庆市可吸入颗粒物中水溶性离子组分的特征,于2006年4月和11月在重庆市主城9区和缙云山对照点采集环境中PM10样品,用离子色谱法测定9种离子组分。分析结果发现,阴离子中含量较高的分别是SO42-和NO3-占了阴离子含量的95%以上;而NH4+和Ca2+则占到阳离子含量的80%。主城各区大气中水溶性离子组分的含量明显高于对照点,且大渡口区、南岸区、九龙坡区、北碚区和渝中区的污染较为严重。在相关性分析中,NH4+与NO3-和SO42-相关性较好,Ca2+与Mg2+也体现出良好的相关性。与国内外城市相比重庆市大气PM10中,NO3-、SO42-和NH4+的浓度相对偏高,Na+和Cl-的浓度较低。
|
| 关 键 词： | 可吸入颗粒物 水溶性离子组分 分析 |
Water Soluble Ions of PM_(10) in Chongqing |
| |
| JIANG Chang-tan,ZHANG Dan,ZHENG Jian-jun.Water Soluble Ions of PM_(10) in Chongqing[J].Environmental Science and Technology,2009,32(7). |
| |
| Authors: | JIANG Chang-tan ZHANG Dan ZHENG Jian-jun |
| |
| Institution: | Chongqing Environmental Science Academy;Chongqing 401147;China |
| |
| Abstract: | Samples of PM10 were collected in April and Nov.2006 at 9 sites of Chongqing urban and one site for comparison.9 water soluble ions were analyzed by ion chromatogram.Results showed that the concentration of NH4+ and Ca2+ were higher in the cation,accordingly SO42-and NO3-were higher in the anion.In the urban districts,the levels of water solubility ions were higher.The relativity of Ca2+,NH4+,Mg2+,NO3-and SO42-were well.Compared with some other cities,the water soluble ions levels were higher. |
| |
| Keywords: | PM10 water soluble ions analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
