摘 要为研究校园大气总悬浮颗粒物及其水溶性阴离子污染特征，在2016年3月~5月采集TSP样品，通过重量法分析质量浓度，并通过离子色谱仪对总悬浮颗粒物上的水溶性阴离子含量进行了分析。结果显示，校园大气TSP两个采样点的变化趋势基本一致，采样点近地面，且人流量大，大气TSP浓度会相对较高，而采样点较高，且人流量少的话，大气TSP浓度会偏低。校园大气TSP平均浓度为0。200mg/m³，浓度绝大多数情况下都低于中国二级标准的规定值0。300mg/m³，环境质量良好，但是也有极个别TSP浓度达到三级标准，浓度偏高，污染严重。检测总悬浮颗粒物中的4种水溶性阴离子，即SO42-、 NO3-、Cl-和F-， F-浓度为0。014±0。002mg/m³，Cl-浓度为0。007±0。001mg/m³，NO3-浓度为0。010±0。001mg/m³，SO42-浓度为0。009±0。001mg/m³。其中F-浓度最高，Cl-浓度最低。总悬浮颗粒物浓度及其水溶性阴离子浓度在降水后偏低，总悬浮颗粒物及其阴离子间存在着一定的联系。87237
毕业论文关键词：总悬浮颗粒物；水溶性阴离子；浓度；分析










Abstract In order to study the characteristics of total suspended particulate matter in the atmosphere and its water soluble anion, TSP samples were collected from March to May in 2016, and analysis of concentration was by gravimetric method, then the content of water soluble anions in total suspended particles was analyzed by Ion Chromatography。 The results show that atmosphere TSP concentration trends of two sampling points in campus are basically same, close to the ground, and the flow of people, TSP concentration of the atmosphere will be relatively high, and sampling points higher, and less flow, the atmospheric TSP concentration will be lower。 Average concentration of campus atmosphere TSP was 0。200mg/m3, the concentration of TSP for the most part are below the provisions of China secondary standard value 0。300mg/m3, environmental quality is good, but there are also very few TSP concentration reaching grade three level standard,the concentration is high and the pollution is serious。 Detection of total suspended particulate matter in the 4 kinds of water soluble anions, namely SO42-, NO3-, Cl- and F-, the concentration of F- was 0。014±0。002mg/m³, the concentration of Cl- was 0。007±0。001mg/m³, the concentration of NO3- was 0。010±0。001mg/m³,the concentration of SO42- was 0。009±0。001mg/m³, in which the concentration of F-is the highest, the concentration of Cl- is the lowest。 After precipitation the concentration of total suspended particulate matter and its water soluble anions were low, and there was a certain relationship between total suspended particles and their anions。

Keywords: total suspended particulate matter; water soluble anion; concentration; analysis






目  录

第一章 绪论   1
1。1 研究背景和意义   1
1。2 国内外研究现状   1
1。2。1 国内研究现状   1
1。2。2国外研究现状   2
1。3总悬浮颗粒物的组成与来源   3
1。4大气TSP中的阴离子   4
1。5 总悬浮颗粒物的危害   5
1。6 总悬浮颗粒物及阴离子的测定方法   6
1。6。1 总悬浮颗粒物测定方法   6
1。6。2 阴离子测定方法   6
1。7 本课题主要研究意义   7
第二章 采样区域和实验方法   8
2。1采样区域   8
2。2 实验材料与仪器   8
2。2。1实验材料   8
2。2。2 实验仪器   9
2。3 实验内容和方法   9 校园大气总悬浮颗粒物及其水溶性阴离子污染特征:http://www.youerw.com/huaxue/lunwen_130279.html