| ANALYSIS OF PARTICULATE MASS CONCENTRATION, AEROSOL NUMBER CONCENTRATION AND VISIBILITY IN BEIJING |
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| 引用本文： | Fengqi Yan1,Huanling Hu1,* and Tong Yu2 1Atmospheric Optics Laboratory,Anhui Institute Optics and Fine Mechanics,Chinese Academy of Sciences,Anhui 230031,P. R. China 2The Center of Beijing Environmental Quality Protection,Beijing 100044,P. R. China *Author to whom correspondence should be addressed. E-mail: hlhu@aiofm.ac.cn. ANALYSIS OF PARTICULATE MASS CONCENTRATION, AEROSOL NUMBER CONCENTRATION AND VISIBILITY IN BEIJING[J]. 中国颗粒学报, 2004, 2(1): 25-30 |
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| 作者姓名： | Fengqi Yan1 Huanling Hu1 * and Tong Yu2 1Atmospheric Optics Laboratory Anhui Institute Optics and Fine Mechanics Chinese Academy of Sciences Anhui 230031 P. R. China 2The Center of Beijing Environmental Quality Protection Beijing 100044 P. R. China *Author to whom correspondence should be addressed. E-mail: hlhu@aiofm.ac.cn |
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| 作者单位： | Fengqi Yan1，Huanling Hu1，* and Tong Yu2 1Atmospheric Optics Laboratory，Anhui Institute Optics and Fine Mechanics，Chinese Academy of Sciences，Anhui 230031，P. R. China 2The Center of Beijing Environmental Quality Protection，Beijing 100044，P. R. China *Author to whom correspondence should be addressed. E-mail: hlhu@aiofm.ac.cn |
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| 摘 要： | 1.IntroductionAtmosphericaerosolsplayanimportantroleinatmos-phericvisibility,irradiationbalanceandclimate.Thenum-berconcentrationofsmallparticulatesisusuallyveryhigh,butitsmassconcentrationisrelativelylow.Buzoriusetal.(1999)andPetersetal.(1997)havereportedthatparticu-latehealtheffectsmaybemoresensitivetothenumberthantothemassconcentration.Thispaperstudiestheaverageddiurnalvariationsofparticulatemassconcentra-tion,numberconcentration,atmosphericvisibility,andtheaerosolsizedistribution,n(r),und…
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| 关 键 词： | 大气悬浮物 大气可见度 光学粒子计算 数值计算 粒子分布 北京 |
ANALYSIS OF PARTICULATE MASS CONCENTRATION, AEROSOL NUMBER CONCENTRATION AND VISIBILITY IN BEIJING |
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| Fengqi Yan,Huanling Hu, and Tong Yu Atmospheric Optics Laboratory,Anhui Institute Optics and Fine Mechanics,Chinese Academy of Sciences,Anhui ,P. R. China The Center of Beijing Environmental Quality Protection,Beijing ,P. R. China Author to whom correspondence should be addressed. E-mail: hlhu@aiofm.ac.cn. ANALYSIS OF PARTICULATE MASS CONCENTRATION, AEROSOL NUMBER CONCENTRATION AND VISIBILITY IN BEIJING[J]. China Particuology, 2004, 2(1): 25-30 |
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| Authors: | Fengqi Yan Huanling Hu Tong Yu Atmospheric Optics Laboratory Anhui Institute Optics Fine Mechanics Chinese Academy of Sciences Anhui P. R. China The Center of Beijing Environmental Quality Protection Beijing P. R. China Author to whom correspondence should be addressed. E-mail: hlhu@aiofm.ac.cn |
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| Affiliation: | Fengqi Yan1,Huanling Hu1,* and Tong Yu2 1Atmospheric Optics Laboratory,Anhui Institute Optics and Fine Mechanics,Chinese Academy of Sciences,Anhui 230031,P. R. China 2The Center of Beijing Environmental Quality Protection,Beijing 100044,P. R. China *Author to whom correspondence should be addressed. E-mail: hlhu@aiofm.ac.cn |
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| Abstract: | Particulate mass concentration (PM10, PM2.5), aerosol number concentration (NOPC), aerosol size distribu-tion and atmospheric visibility were simultaneously measured in Beijing in the summer and winter of 2001. From the profuse data collected, the following conclusions can be drown: (1) there are two peaks for the average diurnal variations of PM10 and NOPC in the summer, an obvious valley can be seen between 12:30 and 15:00 for their average diurnal variation in the winter; (2) there is one single peak for the average diurnal variation of atmospheric visibility in the summer, while there are two peaks in the winter; (3) PM10 and NOPC are usually smaller in the summer than those in the winter; (4) the average visibility is much lower during 00:00~09:00 in the summer than that in the winter, because of the very high relative humidity and higher concentration of the large particles (r>1.25 mm) in the summer during the period; (5) aerosol size distributions usually depend closely on season and relative humidity at the same place. |
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| Keywords: | optical particle counter atmospheric aerosol atmospheric visibility number concentration distribution |
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