南京冬季云凝结核活化特征及闭合研究

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摘要 2017年12月~2018年1月在南京地区对气溶胶的云凝结核（CCN）活化特征进行外场观测，并利用4种常用的闭合方法实现对CCN数浓度的预测.结果表明本次观测期间南京地区的气溶胶具有较高的CCN活性，吸湿性参数（κ）的平均值为0.36.对清洁到不同程度雾-霾天气溶胶污染的CCN活化特征进行对比分析，发现随着污染程度的加深，气溶胶的吸湿性逐渐减弱；在同一能见度（VIS）范围内，环境相对湿度（RH）更高的天气类型中气溶胶的吸湿性和活化能力也更高，这可能由于高RH条件能促进大气中非均相及液相反应生成更多的二次无机气溶胶.4种闭合方法的结果显示，利用临界粒径、截断粒径及粒径分辨的活化谱三种方法总体上均有较好的闭合结果.其中，对于低过饱和度（S）下的预测来说，利用截断粒径方法的闭合结果最为理想.

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	邹华
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	郑军
	李玉蓉
	高瑞杰

关键词 ：气溶胶, 活化特性, 粒径分辨, 云凝结核, 闭合研究

Abstract：The cloud condensation nuclei (CCN) activation properties of aerosols were measured from December 2017 to January 2018 in Nanjing, and four kinds of closure methods were used to predict the concentration of CCN. The results showed that the aerosols in Nanjing exhibited relatively high CCN activity during the observation period, with an average hygroscopicity parameter (κ) of 0.36. From a comparation of the CCN activation characteristics under clean and varying degrees of fog and haze conditions, it was found that the aerosol hygroscopicity gradually decreased as the pollution deteriorated. Within the same visibility (VIS) range, aerosol particles had higher hygroscopicity and activation capacity under higher relative humidity (RH). This may be because that high RH condition can promote heterogeneous and liquid phase reactions of gaseous species in the atmosphere to generate more secondary inorganic aerosols. The results of the four closure methods showed that the prediction of CCN number concentration by using critical diameters, cut-off diameters and size-resolved activation ratios generated better results in general. Among them, the method of cut-off diameters generated best results in predictions at low supersaturation (S).

Key words： aerosol activation properties size-resolved CCN closure study

收稿日期: 2019-12-15

PACS:

X513

基金资助:国家重点研发计划项目（2017YFC0209501）；国家自然科学基金资助项目（41675126，41730106，41975172）

通讯作者: 马嫣,教授,my_nj@163.com E-mail: my_nj@163.com

作者简介: 邹华(1995-),女,福建泰宁人,南京信息工程大学硕士研究生,主要研究方向为大气气溶胶.

引用本文:

邹华, 马嫣, 郑军, 李玉蓉, 高瑞杰. 南京冬季云凝结核活化特征及闭合研究[J]. 中国环境科学, 2020, 40(7): 2811-2820. ZOU Hua, MA Yan, ZHENG Jun, LI Yu-rong, GAO Rui-jie. Characterization and prediction of cloud condensation nuclei activity in winter of Nanjing. CHINA ENVIRONMENTAL SCIENCECE, 2020, 40(7): 2811-2820.

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http://www.zghjkx.com.cn/CN/ 或 http://www.zghjkx.com.cn/CN/Y2020/V40/I7/2811

[1]	Yu F, Luo G. Simulation of particle size distribution with a global aerosol model:contribution of nucleation to aerosol and CCN number concentrations[J]. Atmospheric Chemistry and Physics, 2009,9(20):7691-7710.
[2]	Mallet M D, Cravigan L T, Milic A, et al. Composition, size and cloud condensation nuclei activity of biomass burning aerosol from northern Australian savannah fires[J]. Atmospheric Chemistry and Physics, 2017,17(5):3605-3617.
[3]	张小曳,廖宏,王芬娟.对IPCC第五次评估报告气溶胶-云对气候变化影响与响应结论的解读[J]. 气候变化研究进展, 2014,10(1):37-39. Zhang X Y, Liao H, Wang F J. The effects of aerosols and clouds on Climate Change and Their Reponses[J]. Progressus Inquisitions De Mutatione Climatis, 2014,10(1):37-39.
[4]	Ryan T, de Sá Suzane S, Palm B B, et al. CCN activity and organic hygroscopicity of aerosols downwind of an urban region in central Amazonia:Seasonal and diel variations and impact of anthropogenic emissions[J]. Atmospheric Chemistry and Physics Discussions, 2017, 17(19):11779-11801.
[5]	Ma Y, Li S Z, Zheng J, et al. Size-resolved measurements of mixing state and cloud-nucleating ability of aerosols in Nanjing, China[J]. Journal of Geophysical Research:Atmospheres, 2017,122(17):9430-9450.
[6]	Wang Y Y, Li Z Q, Zhang Y J, et al. Characterization of aerosol hygroscopicity, mixing state, and CCN activity at a suburban site in the central North China Plain[J]. Atmospheric Chemistry and Physics, 2018,18(16):11739-11752.
[7]	Che H C, Zhang X Y, Wang Y Q, et al. Characterization and parameterization of aerosol cloud condensation nuclei activation under different pollution conditions[J]. Scientific Reports, 2016,6:24497.
[8]	Duan J Y, Wang Y Y, Xin X, et al. Influence of pollutants on activity of aerosol cloud condensation nuclei (CCN) during pollution and post-rain periods in Guangzhou, southern China[J]. Science of The Total Environment, 2018,642:1008-1019.
[9]	Deng Z Z, Zhao C S, Ma N, et al. An examination of parameterizations for the CCN number concentration based on in situ measurements of aerosol activation properties in the North China Plain[J]. Atmospheric Chemistry and Physics, 2013,13(13):6227-6237.
[10]	Ren J, Zhang F, Wang Y, et al. Using different assumptions of aerosol mixing state and chemical composition to predict CCN concentrations based on filed measurement in Beijing[J]. Atmospheric Chemistry and Physics, 2018,18:6907-6921.
[11]	Cai M F, Tan H B, Chan, et al. The size-resolved cloud condensation nuclei (CCN) activity and its prediction based on aerosol hygroscopicity and composition in the Pearl Delta River (PRD) region during wintertime 2014.[J]. Atmospheric Chemistry and Physics, 2018,18(22):16419-16437.
[12]	Che H C, Zhang X Y, Zhang L, et al. Prediction of size-resolved number concentration of cloud condensation nuclei and long-term measurements of their activation characteristics[J]. Scientific Reports, 2017,7(1):5819.
[13]	Moore R H, Nenes A, Medina J. Scanning Mobility CCN Analysis-A Method for Fast Measurements of Size-Resolved CCN Distributions and Activation Kinetics[J]. Aerosol Science and Technology, 2010, 44(10):861-871.
[14]	Petters M D, Kreidenweis S M. A single parameter representation of hygroscopic growth and cloud condensation nuclei activity[J]. Atmospheric Chemistry and Physics, 2007,7(8):1081-1091.
[15]	Duan J Y, Tao J, Wu Y, et al. Comparison of aerosol and cloud condensation nuclei between wet and dry seasons in Guangzhou, southern China[J]. Science of the Total Environment, 2017,607:11-22.
[16]	黄成,陈长虹,李莉,等.长江三角洲地区人为源大气污染物排放特征研究[J]. 环境科学学报, 2011,31(9):1858-1871. Huang C, Chen C H, Li L, et al. Anthropogenic air pollutant emission characteristics in the Yangtze River Delta region,China[J]. Acta Scientiae Circumstantiae, 2011,31(9):1858-1871.
[17]	翟一然.长江三角洲地区大气污染物人为源排放特征研究[D]. 南京:南京大学, 2012:1-91. Zhai Y R. Anthropogenic air pollutant emissions in the Yangtze River Delta Region[D]. Nanjing University, 2012:1-91.
[18]	Pringle K J, Tost H, Pozzer A, et al. Global distribution of the effective aerosol hygroscopicity parameter for CCN activation[J]. Atmospheric Chemistry and Physics, 2010,10(12):5241-5255.
[19]	Kim N, Park M, Yum S S, et al. Hygroscopic properties of urban aerosols and their cloud condensation nuclei activities measured in Seoul during the MAPS-Seoul campaign[J]. Atmospheric Environment, 2017,153:217-232.
[20]	Jurányi, Z, Tritscher T, Gysel M, et al. Hygroscopic mixing state of urban aerosol derived from size-resolved cloud condensation nuclei measurements during the MEGAPOLI campaign in Paris[J]. Atmospheric Chemistry and Physics, 2013,13(13):6431-6446.
[21]	Meng J W, Yeung M C, Li Y J, et al. Size-resolved cloud condensation nuclei (CCN) activity and closure analysis at the HKUST Supersite in Hong Kong[J]. Atmospheric Chemistry and Physics, 2014,14(18):10267-10282.
[22]	赵洁心,马嫣,郑军.南京北郊云凝结核活化特征观测及闭合研究[J]. 中国环境科学, 2018,38(7):2415-2424. Zhao J X, Ma Y, Zheng J. Characterization and prediction of cloud condensation nuclei activity in the northern suburb of Nanjing[J]. China Environmental Science, 2018,38(7):2415-2424.
[23]	Gunthe S S, Rose D, Su H, et al. Cloud condensation nuclei (CCN) from fresh and aged air pollution in the megacity region of Beijing[J]. Atmospheric Chemistry and Physics, 2011,11(21):11023-11039.
[24]	Rose D, Nowak A,Achtert P et al. Cloud condensation nuclei in polluted air and biomass burning smoke near the mega-city Guangzhou, China-Part 1:Size-resolved measurements and implications for the modeling of aerosol particle hygroscopicity and CCN activity[J]. Atmospheric Chemistry and Physics, 2010,10(7):3365-3383.
[25]	Kuwata M, Kondo Y, Miyazaki Y, Komazaki Y et al. Cloud condensation nuclei activity at Jeju island, Korea in spring 2005, Atmospheric Chemistry and Physics., 2008,08(8):2933-2948.
[26]	PöHlker M L, PöHlker C, Ditas F, et al. Long-term observations of cloud condensation nuclei in the Amazon rain forest-Part 1:Aerosol size distribution, hygroscopicity, and new model parametrizations for CCN prediction[J]. Atmospheric Chemistry and Physics, 2016,16(24):15709-15740.
[27]	尚倩,李子华,杨军,等.南京冬季大气气溶胶粒子谱分布及其对能见度的影响[J]. 环境科学, 2011,32(9):2750-2760. Shang Q, Li Z H, Yang J, et al. Size distributions of aerosol particles and the impact on visibility in winter of Nanjing[J]. Environmental Science, 2011,32(9):2750-2760.
[28]	沈雷,顾芳,张加宏,等.相对湿度对大气气溶胶消光系数的影响[J]. 光散射学报, 2017,29(3):251-256. Shen L, Gu F, Zhang J H, et al. The effect of relative humidity on the extinction coefficient of aerosols[J]. The Journal of Light Scattering, 2017,29(3):251-256.
[29]	顾芳,黄亚磊,崔芬萍,等.外混合气溶胶吸湿性对其平均消光系数的影响[J]. 科学技术与工程, 2018,18(27):6-11. Gu F, Huang Y L, Cui F P, et al. The effect of hygroscopicity of external mixed aerosol on average extinction coefficient[J]. Science Technology and Engineering, 2018,18(27):1-6.
[30]	于兴娜,马佳,朱彬,等.南京北郊秋冬季相对湿度及气溶胶理化特性对大气能见度的影响[J]. 环境科学, 2015,36(6):1919-1925. Yu X N, Ma J, Zhu B, et al. Effects of relative humility and aerosol physicochemical properties on atmospheric visibility in northern suburb of Nanjing[J]. Environmental Sciences, 2015,36(6):1919-1925.
[31]	Lance S, Raatikainen T, Onasch T B, et al. Aerosol mixing state, hygroscopic growth and cloud activation efficiency during MIRAGE 2006[J]. Atmospheric Chemistry and Physics, 2013,13(9):5049-5062.
[32]	刘寿东,张莉,张园园,等.温湿度对南京北郊PM2.5中二次无机离子生成演化的影响[J]. 生态环境学报, 2018,27(4):714-721. Liu S D, Zhang L, Zhang Y Y, et al. Influencesof temperature and humidity on formation and evolution of secondary aerosol inorganic ions of PM2.5 at Northern Suburban Nanjing[J]. Ecology and Environmental Sciences, 2018,27(4):714-721.
[33]	姚青,蔡子颖,韩素芹,等.天津冬季相对湿度对气溶胶浓度谱分布和大气能见度的影响[J]. 中国环境科学, 2014,34(3):596-603. Yao Q, Cai Z Y, Han S Q, et al. Effects of relative humidity on the aerosol size distribution and visibility in the winter in Tianjin[J]. China Environmental Science, 2014,34(3):596-603.
[34]	Ma Y, Huang C C, Jabbour H, et al. Mixing state and light absorption enhancement of black carbon aerosols in summertime Nanjing, China[J]. Atmospheric Environment, 2020,222:117-141.
[35]	杨素英,田芷洁,张铁凝,等.霾天气下城市气溶胶吸湿性的观测[J]. 环境科学, 2019,40(6):2546-2555. Yang S Y, Tian Z J, Zhang T N, et al. Urban aerosol hygroscopicity during haze weather[J]. Environmental Science, 2019,40(6):2546-2555.
[36]	Tao J C, Zhao C S, Ma N, et al. Consistency and applicability of parameterization schemes for the size-resolved aerosol activation ratio based on field measurements in the North China Plain[J]. Atmospheric Environment, 2018,173:316-324.