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| 1 | Contrasting trends of PM2.5 and surface-ozone concentrations in China from 2013 to 2017显示文摘Although much attention has been paid to investigating and controlling air pollution in China,the trends of air-pollutant concentrations on a national scale have remained unclear.Here,we quantitatively investigated the variation of air pollutants in China using long-term comprehensive data sets from 2013 to 2017,during which Chinese government made major efforts to reduce anthropogenic emission in polluted regions.Our results show a significant decreasing trend in the PM2.5 concentration in heavily polluted regions of eastern China,with an annual decrease of〜7%compared with measurements in 2013.The measured decreased concentrations of SO2>NO2 and CO(a proxy for anthropogenic volatile organic compounds)could explain a large fraction of the decreased PM2.5 concentrations in different regions.As a consequence;the heavily polluted days decreased significantly in corresponding regions.Concentrations of organic aerosol;nitrate;sulfate,ammonium and chloride measured in urban Beijing revealed a remarkable reduction from 2013 to 2017;connecting the decreases in aerosol precursors with corresponding chemical components closely.However;surface-ozone concentrations showed increasing trends in most urban stations from 2013 to 2017;which indicates stronger photochemical pollution.The boundary-layer height in capital c让ies of eastern China showed no significant trends over the Beijing-Tianjin-Hebei,Yangtze River Delta and Pearl River Delta regions from 2013 to 2017;which confirmed the reduction in anthropogenic emissions.Our results demonstrated that the Chinese government was successful in the reduction of particulate matter in urban areas from 2013 to 2017,although the ozone concentration has increased significantly;suggesting a more complex mechanism of improving Chinese air quality in the future. | Yonghong Wang Wenkang Gao Shuai Wang Tao Song Zhengyu Gong Dongsheng Ji Lili Wang Zirui Liu Guiqian Tang Yanfeng Huo Shili Tian Jiayun Li Mingge Li Yuan Yang Biwu Chu Tuukka Petaja Veli-Matti Kerminen Hong He Jiming Hao Markku Kulmala Yuesi Wang Yuanhang Zhang | 2020 | National Science Review2020，7，8： | 51 |
| 2 | Long-term observation of air pollution-weather/climate interactions at the SORPES station: a review and outlook显示文摘 | Aijun Ding Wei Nie Xin Huang Xuguang Chi Jianning Sun Veli-Matti Kerminen Zheng Xu Weidong Guo Tuukka Petaja Xiuqun Yang Markku Kulmala Congbin Fu | 2016 | Frontiers of Environmental Science & Engineering2016，10，5： | 3 |
| 3 | Continuous and comprehensive atmospheric observations in Beijing:a station to understand the complex urban atmospheric environment显示文摘Due to profound impact on climate and human health,air quality has attracted attention from all levels of the civil society.The key step in the provision of required tools for the society to tackle the complex air quality problem is to characterize it in a comprehensive manner with a long-term perspective.Here,we describe a continuous and comprehensive observation station and its accompanying state-ofthe-art instrumentation that was established to investigate the complex urban atmospheric environment in a rapidly developing Chinese Megacity.The station,located in downtown Beijing,aims to study air quality by identifying the major atmospheric pollutants and key processes determining their formation and loss mechanisms.A few hundreds of parameters are continuously measured with the state-of-the-art instruments,including trace gas concentrations,aerosol particle size distributions,and mass concentrations,covering aerosol particle chemical composition from molecules to micrometer-sized aerosol particles.This produced long-term,comprehensive big data with around 1�10^(11)bytes per year.In this paper,we provide an overview on the facilities of the station,the instrumentation used,the workflow of continuous observations and examples of results from 2018 to 2019 and a basis for establishing a modern long-term,comprehensive atmospheric urban observation station in other megacities. | Yongchun Liu Chao Yan Zemin Feng Feixue Zheng Xiaolong Fan Yusheng Zhang Chang Li Ying Zhou Zhuohui Lin Yishou Guo Ying Zhang Li Ma Wenshuo Zhou Zhikun Liu Lubna Dada Kaspar Dallenbach Jenni Kontkanen Runlong Cai Tommy Chan Biwu Chu Wei Du Lei Yao Yonghong Wang Jing Cai Juha Kangasluoma Tom Kokkonen Joni Kujansuu Anton Rusanen Chenjuan Deng Yueyun Fu Rujing Yin Xiaoxiao Li Yiqun Lu Yiliang Liu Chaofan Lian Dongsen Yang Weigang Wang Maofa Ge Yuesi Wang Douglas R.Worsnop Heikki Junninen Hong He Veli-Matti Kerminen Jun Zheng Lin Wang Jingkun Jiang Tuukka Petaja Federico Bianchi Markku Kulmala | 2020 | Big Earth Data2020，4，3： | 3 |
| 4 | On secondary new particle formation in China显示文摘新大气的喷雾器粒子的形成是被观察了发生在甚至重重地弄脏的环境的全球现象。然而,在所有环境,看起来是冷凝作用水池的阀值价值(由于先存在喷雾器粒子) 在哪个以后 3 个 nm 粒子的形成率不再被检测。在中国,新粒子生产在很高的污染层次被观察了(冷凝作用水池在几个大城市,包括的北京,上海和南京以及在珀尔河三角洲(PRD ) 的大约 0.1 s -1) 。这里,我们总结从这些研究获得的最近的调查结果并且讨论这些调查结果将在未来研究和政策上有的各种各样的含意。 | Markku Kulmala Tuukka Petaja Veli-Matti Kerminen Joni Kujansuu Taina Ruuskanen Aijun Ding Wei Nie Min HU Zhibin Wang Zhijun Wu Lin Wang Douglas R. Worsnop | 2016 | Frontiers of Environmental Science & Engineering2016，10，5： | 3 |
| 5 | The impact of the atmospheric turbulence-development tendency on new particle formation:a common finding on three continents显示文摘A new mechanism of new particle formation(NPF)is investigated using comprehensive measurements of aerosol physicochemical quantities and meteorological variables made in three continents,including Beijing,China;the Southern Great Plains site in the USA;and SMEARⅡStation in Hyytiala,Finland.D espite the considerably different emissions of chemical species among the sites,a common relationship was found between the characteristics of NPF and the stability intensity.The stability parameter(ζ=Z/L,where Z is the height above ground and L is the Monin-Obukhov length)is found to play an important role;it drops significantly before NPF as the atmosphere becomes more unstable,which may serve as an indicator of nucleation bursts.As the atmosphere becomes unstable,the NPF duration is closely related to the tendency for turbulence development,which influences the evolution of the condensation sink.Presumably,the unstable atmosphere may dilute pre-existing particles,effectively reducing the condensation sink,especially at coarse mode to foster nucleation.This new mechanism is confirmed by model simulations using a molecular dynamic model that mimics the impact of turbulence development on nucleation by inducing and intensifying homogeneous nucleation events. | Hao Wu Zhanqing Li Hanqing Li Kun Luo Yuying Wang Peng Yan Fei Hu Fang Zhang Yele Sun Dongjie Shang Chunsheng Liang Dongmei Zhang Jing Wei Tong Wu Xiaoai Jin Xinxin Fan Maureen Cribb Marc L.Fischer Markku Kulmala Tuukka Petaja | 2021 | National Science Review2021，8，3： | 2 |
| 6 | The Silk Road agenda of the Pan-Eurasian Experiment (PEEX) program显示文摘The Silk Road Economic Belt and the 21st-Century Maritime Silk Road(B&R)aims at facilitating the twenty-first Century economic development of China.However,climate change,air quality and related feedbacks are affecting the successful development of the environment and societies in the B&R geographical domain.The most urgent risks related to the atmospheric system,to the land system and to hydrospheric and cryospheric processes are changing climate-air quality interactions,air pollution,changing monsoon dynamics,land degradation,and the melting of Tibetan Plateau glaciers.A framework is needed in which a science and technology-based approach has the critical mass and expertise to identify the main steps toward solutions and is capable to implement this roadmap.The Pan-Eurasian Experiment(PEEX)program,initiated in 2012,aims to resolve science,technology and sustainability questions in the Northern Eurasian region.PEEX is now identifying its science agenda for the B&R region.One fundamental element of the PEEX research agenda is the availability of comprehensive ground-based observations together with Earth observation data.PEEX complements the recently launched international scientific program called Digital Belt and Road(DBAR).PEEX has expertise to coordinate the ground-based observations and initiate new flagship stations,while DBAR provides a big data platform on Earth observation from China and countries along the Belt and Road region.The DBAR and PEEX have joint interests and synergy expertise on monitoring on ecological environment,urbanization,cultural heritages,coastal zones,and arctic cold regions supporting the sustainable development of the Belt and Road region.In this paper we identify the research themes of the PEEX related Silk Road agenda relevant to China and give an overview of the methodological requirements and present the infrastructure requirements needed to carry out large scale research program. | Hanna K.Lappalainen Markku Kulmala Joni Kujansuu Tuukka Petaja Alexander Mahura Gerrit de Leeuw Sergej Zilitinkevich Merli Juustila Veli-Matti Kerminen Bob Bornstein Zhang Jiahua Xue Yong Qiu Yubao Liang Dong Liu Jie Guo Huadong | 2018 | Big Earth Data2018，2，1： | 2 |
| 7 | Initial steps of aerosol growth 显示文摘 | Kulmala M Laakso L Lehtinen K E J | 2004 | Atmospheric Chemistry and Physics2004，4，1112： | 1 |
| 8 | Type specific persistence of high-risk human papillomavirus in- fections in the New Independent States of the former Soviet Union Cohort Study显示文摘 | Kulmala SM Shabalova IP Petrovitchev N | 2007 | Cancer Epidemiol Biomarkers Prey2007，16，1： | 1 |
| 9 | Type-specific persistence of high-risk human papillomavirus infections in the New Independent States of the former Soviet Union Cohort Study显示文摘 | Kulmala SM Shabalova IP Petrovitchev N | 2007 | Cancer Epidemiol Biomarkers Prev2007，16，1： | 1 |
| 10 | Formation and growth of fresh atmospheric aerosols:eight years of aerosol size distribution data from SMEAR Ⅱ,Hyyti?l?,Finland 显示文摘 | Maso M D Kulmala M Riipinen I | 2005 | Boreal Environment Research2005，10，5： | 1 |
| 11 | Indoor air aerosol model: the effect of outdoor air, filtration and ventilation on indoor concentrations 显示文摘 | Markku Kulmala Ari Asmi Liisa Pirjola | 1999 | Atmospheric Environment1999，33，1417： | 1 |
| 12 | Models for condensational growth and evaporation of binary aerosol partieles显示文摘 | Vesala Timo Kulmala Markku | 1997 | Aerosol Science1997，28，4： | 1 |
| 13 | Disease- associated autoantibodies as surrogate markers of type 1 diabetes in young children at increased genetic risk显示文摘 | Kimpimaki T Kulmala P Savola K | 2000 | J Clin Endocrinol Metab2000，85，3： | 1 |
| 14 | Condensational growth and evaporation in the transition regime显示文摘 | Kulmala M | 1993 | Aerosol Science and Technology1993，19，3： | 1 |
| 15 | Early integration of high copy HPV16 detectable in women with normal and low grade cervical cytology and histology显示文摘 | Kulmala S M Syrjanen S M Gyllensten U B | 2006 | J Clin Pathol2006，59，5： | 1 |
| 16 | Stable Sulphate Clus- ters as a Source of New Atmospheric Particles 显示文摘 | Kulmala M Pirjola L Makela J M | 2000 | Nature2000，404，： | 1 |
| 17 | On the growth of nucleation mode particles:source rates of condensable vapor in polluted and clean environments 显示文摘 | Kulmala M Pet?j? T M?nkk?nen P | 2005 | Atmospheric Chemistry and Physics2005，5，2： | 1 |
| 18 | Genetic markers, humoral autoimmunity, and predliction of type 1 diabetes in siblings of affected chidren显示文摘 | Kulmala P Savola K Reijonen H | 2000 | Diabetes2000，49，1： | 1 |
| 19 | On the Formation and Growth of Atmospheric Nanoparticles 显示文摘 | Kulmala M Kerminen V M | 2008 | Atmospheric Research2008，90，： | 1 |
| 20 | Prediction of insulin-dependent diabetes mellitus in siblings of children with diabetes: a population based study显示文摘 | Kulmala P Savola K Petersen J S | 1998 | J Clin Invest1998，101，： | 1 |
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