室内打印机颗粒污染物特性的测量与分析  

Measurement and Analysis on Indoor Particle Pollution Characteristics from Printer

作　　者：朱维斌[1] 胡楠[1] 尹招琴[1] 

机构地区：[1]中国计量学院计量测试工程学院,浙江杭州310018

出　　处：《环境科学与技术》2011年第5期104-107,共4页Environmental Science & Technology

基　　金：国家自然科学基金青年项目(10802083);浙江省教育厅2009高校青年教师资助计划项目(2009-164)

摘　　要：文章对打印机工作所产生的可吸入颗粒污染物进行研究,使用FMPS3091对5.6～560 nm粒径范围的颗粒物进行数量浓度、质量浓度测量;使用分形理论对所产生的空气污染特性进行分析,并通过粒度的分形维数对其进行了定量表达。测量和分析的结果显示：打印机工作所产生颗粒物的数量浓度、质量浓度远远大于背景浓度,并随打印机工作时间增长而增加;打印机产生的颗粒物粒径非常小,93.1 nm粒径以下颗粒占总颗粒数比都超过了92%,143.3nm粒径以下的超细颗粒占总颗粒数比超过99.5%;使用分形理论对颗粒粒度分布分析结果显示分形维数变化范围为3.654 6~4.527 6;打印机工作产生颗粒物的数量浓度、质量浓度衰减缓慢,10 min后的浓度仍处于较高水平,对室内空气质量具有长期影响作用。Indoor airborne particles concentration of number and mass in the range of 5.6 nm～560 nm were measured by FMPS3091 with print operation,and indoor airborne pollution characteristics were analyzed in comparison with the background concentrations.Particle size distribution was described with fractal dimensions.Results indicated that the concentrations of number and mass of printer particle were far above than that of background respectively.The particles emitted from printer affected primarily on the number concentrations of those with size less than 143.3nm accounting for 99.5% of total number and size less than 93.1nm accounting for 92%.Fractal dimensions of size distribution generated by printer were in the range of 3.654 6～4.527 6.The concentrations of number and mass of printer particle which attenuated slowly could hold a relatively higher level after 10min.

关 键 词：室内空气 颗粒 浓度 污染特性 打印机 分形维数 

分 类 号：X513[环境科学与工程—环境工程]