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大学校园空气负离子和氡的分布规律及其相关性分析

发表时间:2015-12-31  浏览量:1670  下载量:743
全部作者: 王廷路,项麦祺,李彦鹏
作者单位: 长安大学环境科学与工程学院;长安大学旱区地下水文与生态效应教育部重点实验室
摘 要: 利用DLY-2 型空气离子测量仪和RAD7 型测氡仪,以长安大学雁塔校区为研究区域,对空气负离子和氡浓度进行测量。研究结果表明:空气负离子和氡浓度日变化呈现明显的不均匀性,空气负离子呈现出明显的双峰变化,氡的浓度呈类似正弦曲线的变化趋势。负离子的季节变化趋势主要表现为夏季最高,春秋次之,冬季最低;氡则呈现出冬季最高,春秋次之,夏季最低的趋势。空气负离子随着高度的增加而增加,氡的变化规律则相反。近地面空气中负离子的浓度与氡浓度呈正相关,相关系数为0.67.
关 键 词: 大气环境学;空气负离子;氡气;相关关系
Title: Distribution and correlation of negative air ion and radon in the university campus
Author: WANG Tinglu, XIANG Maiqi, LI Yanpeng
Organization: School of Environmental Science and Engineering, Chang’an University; Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of Ministry of Education, Chang’an Unversity
Abstract: In this study, the negative air ion and radon concentrations were simultaneously measured on Chang’an University with DLY-2G air ion detector and RAD7 continuous radon detector, respectively. The results show that the temporal distributions of negative air ion and radon concentration are obviously heterogeneity. The daily variation of negative air ions presents a double-peak phenomenon clearly. As for the diurnal variation of radon, it is similar to the tendency of sine cure. Significant seasonal variation of negative air ions can be observed with the highest level in summer, followed by autumn and spring, and the lowest in winter. However, the concentration of radon from high to low in order is winter, spring, autumn and summer. The negative air ions concentration increased with the increasing of height, while the concentration of radon is found to be decreased with the increasing of height. Correlation coefficient between negative air ion and radon outdoor concentrations is approximately 0.67.
Key words: atmospheric environmental science; negative air ion; radon; correlation coefficient
发表期数: 2015年12月第24期
引用格式: 王廷路,项麦祺,李彦鹏. 大学校园空气负离子和氡的分布规律及其相关性分析[J]. 中国科技论文在线精品论文,2015,8(24):2599-2604.
 
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