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| 青岛市区春夏季大气能见度与颗粒物的关系 |
| The Relationship Between Atmospheric Visibility and Particulate Matter in Spring and Summer in Qingdao Urban Area |
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| DOI： |
| 中文关键词: 大气能见度 PM10 PM2.5 PM1 相对湿度 青岛 |
| 英文关键词: Atmospheric visibility PM10 PM2.5 PM1 Relative humidity Qingdao |
| 基金项目: |
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| 中文摘要: |
| 利用青岛市灰霾综合观测站2012年3月2日─2012年6月7日期间的监测数据，分析了青岛市区大气能见度与不同粒径颗粒物质量浓度的日变化特征，比较了各级别大气能见度下不同粒径颗粒物质量浓度及所占比例的相关性，研究了相对湿度对大气能见度和颗粒物质量浓度相关性的影响。结果表明，监测时段大气能见度与颗粒物质量浓度呈现较好的负相关，每天大气能见度最低值出现在早晨07:00—09:00；剔除相对湿度高于90%的前提下，PM2.5是影响大气能见度的主要因子，随着其在PM10中所占比例上升，大气能见度级别不断下降，相关系数为-0.84；不同相对湿度区间下，PM2.5对大气能见度的影响最明显，其中，相对湿度为60%~70%，大气能见度与颗粒物质量浓度之间的相关性最好。 |
| 英文摘要: |
| In this thesis, by use of the data of Qingdao comprehensive monitoring station for dust haze from March 2nd 2012 to June 7th 2012, the daily variation of the atmospheric visibility and mass concentration of different particle size are analyzed, the mass concentration and their correlatability of proportion of various particle size under different atmospheric visibility are compared, as well as the influence on atmospheric visibility and the correlatability of particle mass concentration by relative humidity are studied. It indicates that the atmospheric visibility and the mass concentration of particles has a good negative correlation during monitored period. The minimum data of visibility appears from 7:00 to 9:00 every morning; Upon rejection of the R/H above 90%, PM2.5 is the key factor effecting visibility. With its proportion in PM10 increased, the level of visibility continuously declines, at a -0.84 correlation; PM2.5 has an obvious influence on visibility under different relative humidity, during which 60%~70% RH shows best correlatability between atmospheric visibility and mass concentration of particles. |
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