科研成果 Publications

2019
Lu K, Fuchs H, Hofzumahaus A, Tan Z, Wang H, Zhang L, Schmitt SH, Rohrer F, Bohn B, Broch S, et al. Fast Photochemistry in Wintertime Haze: Consequences for Pollution Mitigation Strategies. Environmental Science & Technology [Internet]. 2019. 访问链接
Zou Q, Song H, Tang M, Lu K. Measurements of HO2 uptake coefficient on aqueous (NH4)2SO4 aerosol using aaerosol flow tube with LIF system. Chinese Chemical Letters [Internet]. 2019. 访问链接
Wang H, Lu K. Monitoring Ambient Nitrate Radical by Open-Path Cavity-Enhanced Absorption Spectroscopy. Analytical Chemistry [Internet]. 2019;2019(91):10687-10693. 访问链接
杨新平, 王海潮, 谭照峰, 陆克定, 张远航. OH自由基总反应性的实地测量. 化学学报. 2019;(77):613-624.PKU 
Qiu X, Ying Q, Wang S, Duan L, Wang Y, Lu K, Wang P, Xing J, Zheng M, Zhao M, et al. Significant impact of heterogeneous reactions of reactive chlorine species on summertime atmospheric ozone and free-radical formation in north China. Science of the Total Environment [Internet]. 2019;2019. 访问链接
Tan ZF, Lu KD, Hofzumahaus A, Fuchs H, Bohn B, Holland F, Liu YH, Rohrer F, Shao M, Sun K, et al. Experimental budgets of OH, HO2, and RO2 radicals and implications for ozone formation in the Pearl River Delta in China 2014. Atmospheric Chemistry and Physics [Internet]. 2019;(19):7129-7150. 访问链接
Shi ZB, T V, Kotthaus S, Harrison RM, Grimmond S, Yue SY, Zhu T, Lee J, Han YQ, Demuzere M. Introduction to the special issue “In-depth study of air pollution sources and processes within Beijing and its surrounding region (APHH-Beijing)”. Atmospheric Chemistry and Physics [Internet]. 2019;(19):7519-7546. 访问链接
Ma XF, Tan ZF, Lu KD, Yang XP, Liu YH, Li SL, Li X, Chen SY, Novelli A, Cho CM. Winter photochemistry in Beijing: Observation and model simulation of OH and HO2 radicals at an urban site. Science of the Total Environment [Internet]. 2019;(685):85-95. 访问链接
Tan ZF, Lu KD, Jiang MQ, Su R, Wang HL, Lou SR, Fu QY, Zhai CZ, Tan QW, Yue DL, et al. Daytime atmospheric oxidation capacity in four Chinese megacities during the photochemically polluted season: a case study based on box model simulation. Atmospheric Chemistry and Physics [Internet]. 2019;19(6):3493-3513. 访问链接
Song M, Liu X, Zhang Y, Shao M, Lu K, Tan Q, Feng M, Qu Y. Sources and abatement mechanisms of VOCs in southern China. Atmospheric Environment [Internet]. 2019;201:28-40. 访问链接
Chen X, Wang H, Liu Y, Su R, Wang H, Lou S, Lu K. Spatial characteristics of the nighttime oxidation capacity in the Yangtze River Delta, China. Atmospheric Environment [Internet]. 2019;208:150-157. 访问链接
Liu Y, Lu K, Li X, Dong HB, Tan Z, Wang H, Zou Q, Wu Y, Zeng L, Min K-E, et al. A Comprehensive Model Test of the HONO Sources Constrained to Field Measurements at Rural North China Plain. Environmental Science & Technology [Internet]. 2019. 访问链接
2018
Wu ZJ, Wang Y, Tan TY, Zhu YS, Li MR, Shang DJ, Wang HC, Lu KD, Guo S, Zeng LM, et al. Aerosol Liquid Water Driven by Anthropogenic Inorganic Salts: Implying Its Key Role in Haze Formation over the North China Plain. Environmental Science & Technology LettersEnvironmental Science & Technology LettersEnvironmental Science & Technology Letters. 2018;5:160-166.Abstract
This study reveals aerosol liquid water content (ALWC) in PM2.5 ranged from 2% up to 74%, and the associated secondary inorganic fraction rose from 24% to 55%, while ambient relative humidity (RH) increased from 15% to 83% in the atmosphere over Beijing. Unexpectedly, the secondary inorganic fraction in PM2.5 increased with an increase in the ambient RH, which is a meteorological parameter independent of anthropogenic activities, indicating the presence of a feedback mechanism driven by Henry's law and thermodynamic equilibrium. During haze episodes, simultaneously elevated RH levels and anthropogenic secondary inorganic mass concentrations resulted in an abundant ALWC. The condensed water could act as an efficient medium for multiphase reactions, thereby facilitating the transformation of reactive gaseous pollutants into particles and accelerating the formation of heavy haze. ALWC was well correlated with the mass concentrations of both nitrate and sulfate, indicating both nitrate and sulfate salts play key roles in determining ALWC. Coincident with a significant reduction in SO2 emissions throughout China, nitrates will become a dominant anthropogenic inorganic salt driving ALWC. Thus, the abundance of ALWC and its effects on the aerosol chemistry and climate should be reconsidered.
Su R, Lu KD, Yu JY, Tan ZF, Jiang MQ, Li J, Xie SD, Wu YS, Zeng LM, Zhai CZ, et al. Exploration of the formation mechanism and source attribution of ambient ozone in Chongqing with an observation-based model. Science China-Earth SciencesScience China-Earth SciencesScience China-Earth Sciences. 2018;61:23-32.Abstract
An intensive field campaign was conducted in Chongqing during the summer of 2015 to explore the formation mechanisms of ozone pollution. The sources of ozone, the local production rates, and the controlling factors, as well as key species of volatile organic compounds (VOCs), were quantified by integrating a local ozone budget analysis, calculations of the relative incremental reactivity, and an empirical kinetic model approach. It was found that the potential for rapid local ozone formation exists in Chongqing. During ozone pollution episodes, the ozone production rates were found to be high at the upwind station Nan Quan, the urban station Chao Zhan, and the downwind station Jin-Yun Shan. The average local ozone production rate was 30x10(-9) V/V h(-1) and the daily integration of the produced ozone was greater than 180x10(-9) V/V. High ozone concentrations were associated with urban and downwind air masses. At most sites, the local ozone production was VOC-limited and the key species were aromatics and alkene, which originated mainly from vehicles and solvent usage. In addition, the air masses at the northwestern rural sites were NO (x) -limited and the local ozone production rates were significantly higher during the pollution episodes due to the increased NO (x) concentrations. In summary, the ozone abatement strategies of Chongqing should be focused on the mitigation of VOCs. Nevertheless, a reduction in NO (x) is also beneficial for reducing the regional ozone peak values in Chongqing and the surrounding areas.
Li ZY, Zhu R, Xie PH, Wang HC, Lu KD, Wang D. Intercomparison of in situ CRDS and CEAS for measurements of atmospheric N2O5 in Beijing, China. Science of the Total EnvironmentScience of the Total Environment. 2018;613:131-139.Abstract
Dinitrogen pentoxide (N2O5) is one of the basic trace gases which plays a key role in nighttime atmosphere. An intercomparison and validation of different N2O5 measurement methods is important for determining the true accuracy of these methods. Cavity ring down spectroscopy (CRDS) and cavity enhanced absorption spectrometer (CEAS) were used to measure N2O5 at the campus of the University of Chinese Academy of Sciences (UCAS) from February 21, 2016 to March 4, 2016. The detection limits were 1.6 ppt (1 sigma) at 30 s intervals for the CEAS instrument and 3.9 ppt (1 sigma) at 10 s time resolution for the CRDS instrument respectively. In this study, a comparison of the 1 min observations from the two instruments was presented. The two data sets showed a good agreement within their uncertainties, with an absolute shift of 15.6 ppt, slope of 0.94 and a correlation coefficient R-2 = 0.97. In general, the difference between the CRDS and CEAS instruments for N2O5 measurement can be explained by their combined measurement uncertainties. However, high relative humidity (> 60%) and high PM2.5 concentration (> 200 mu g/m(3)) may contribute to the discrepancies. The excellent agreement between the measurement by the CRDS and CEAS instruments demonstrates the capability of the two instruments for accurately measuring N2O5 with high sensitivity. (C) 2017 Elsevier B.V. All rights reserved.
Tan ZF, Lu KD, Zhang YH. Explicit diagnosis of the local ozone production rate and the ozone-NOx-VOC sensitivities. Science Bulletin [Internet]. 2018;(63):1067-1076. 访问链接
Chen X, Wang H, Lu K. Simulation of organic nitrates in Pearl River Delta in 2006 and the chemical impact on ozone production. Science China Earth Sciences. 2018;61(2):228-238.
Duan J, Qin M, Ouyang B, Fang W, Li X, Lu K, Tang K, Liang S, Meng F, Hu Z. Development of an incoherent broadband cavity-enhanced absorption spectrometer for in situ measurements of HONO and NO 2. Atmospheric Measurement Techniques. 2018;11(7).
Tham YJ, Wang Z, Li Q, Wang W, Wang X, Lu K, Ma N, Yan C, Kecorius S, Wiedensohler A. Heterogeneous N 2 O 5 uptake coefficient and production yield of ClNO 2 in polluted northern China: roles of aerosol water content and chemical composition. Atmospheric Chemistry and Physics. 2018;18(17):13155-13171.
Breton ML, Hallquist ÅM, Pathak RK, Simpson D, Wang Y, Johansson J, Zheng J, Yang Y, Shang D, Wang H. Chlorine oxidation of VOCs at a semi-rural site in Beijing: significant chlorine liberation from ClNO 2 and subsequent gas-and particle-phase Cl–VOC production. Atmospheric Chemistry and Physics. 2018;18(17):13013-13030.

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