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| 1 | 上海地区臭氧周末效应研究显示文摘分析了2006年上海5个臭氧监测站(徐家汇、崇明、宝山、浦东和金山)周末与工作日臭氧浓度的变化规律,发现上海徐家汇与国外许多城市中心一样,存在周末臭氧浓度比工作日高,而臭氧前体物NO,NO2,CO和VOCs的浓度却是周末要比工作日低的“臭氧周末效应”.一方面,上海徐汇区NO2/NO在周末比工作日要高25.61%,NO排放的减少是造成上海臭氧周末效应可能的化学原因;另一方面,上海徐家汇由于周末NOx(NO+NO2)比工作日在清晨(05:00-09:00)平均减少近12.13%,使清晨NO抑制臭氧生成的持续时间比工作日少近半个小时,周末臭氧积累持续时间更长,臭氧平均生成速率更大.臭氧的产生率是关于环境中VOCs与NOx混合比率的函数.上海徐家汇VOCs与NOx比率周末为4.55,工作日为4.37,位于VOC敏感区.由于周末NOx和VOCs减少,VOCs/NOx比率增加,使臭氧从73mL/L增加到80nL/L,这与上海徐家汇的“周末效应”基本一致.利用MICAPS云量资料做进一步分析.周末、工作日臭氧值都随云量增加而降低,并且明显发现徐家汇臭氧“周末效应”随云量增加而逐渐减弱.云量的增加最终结果使臭氧“周末效应”几乎消失,说明徐家汇臭氧“周末效应”是由于臭氧光化学生成引起的. | 唐文苑 赵春生 耿福海 彭丽 周广强 高伟 许建明 Xuexi Tie | 2009 | 中国科学(D辑)2009，39，1： | 103 |
| 2 | Black carbon aerosols and their radiative properties in the Pearl River Delta region显示文摘The climatic and environmental effects of atmospheric aerosols are a hot topic in global science community, and radiative properties of the aerosols are one of the important parameters in assessing climatic change. Here we studied the black carbon concentration and absorption coefficient measured with aethalometers, scattering coefficient measured with nephelometers, and single scattering albedo derived at an atmospheric composition watch station in Guangzhou from 2004 to 2007. Our main results are as follows. The data of black carbon concentration and absorption coefficients measured with instruments cannot be directly used until they are measured in parallel with internationally accepted instruments for comparison, calibration, and reduction. After evaluation of the data, the result shows that the monthly mean of BC concentration varies 3.1―14.8 μg·m-3 and the concentration decreases by about 1 μg·m-3 in average over the four years; It is higher in the dry season with a multi-year mean of 8.9 μg/m3 and lower in the rainy season with a multi-year mean of 8.0 μg·m-3; The extreme maximum of monthly mean concentration occurred in December 2004 and extreme minimum in July 2007, and a 4-year mean is 8.4 μg·m-3. It is also shown that monthly mean scattering coefficient derived varies 129 -565 Mm-1, monthly mean absorption coefficient 32-139 Mm-1, and monthly mean single scattering albedo 0.71-0.91, with annual mean values of 0.80, 0.82, 0.79 and 0.84 for 2004, 2005, 2006 and 2007, respectively. Three instruments were used to take simultaneous measurements of BC in PM10, PM2.5, and PM1 and the results showed that PM2.5 took up about 90% of PM10 and PM1 accounted for about 68% of PM2.5, and BC aerosols are mainly present in fine particulates. The variability of BC concentrations is quite consistent between the Nancun station (141 m above sea level) and the Panyu station (13 m above sea level), which are 8 km apart from each other. The concentration in higher altitude station (Panyu) is consistently lower than the lower altitude station (Nancun), and the difference of annual mean is about 4 μg·m-3. | WU Dui MAO JieTai DENG XueJiao TIE XueXi ZHANG YuanHang ZENG LiMin LI Fei TAN HaoBo BI XueYan HUANG XiaoYing CHEN Jing DENG Tao | 2009 | Science China Earth Sciences2009，52，8： | 58 |
| 3 | Evolution of planetary boundary layer under different weather conditions,and its impact on aerosol concentrations显示文摘一个领域实验在天津被进行,从 2010 年 9 月 930 日的中国,在表面空气污染物质上集中了于行星的边界层(PBL ) 和它的影响的进化。实验使用了三台遥感仪器,风侧面雷达( WPR ),微波辐射计( MWR )和微脉搏的激光雷达( MPL ),到检测风,温度,和喷雾器 backscattering 系数并且到的垂直侧面测量表面污染物质的垂直侧面(喷雾器,公司, SO2 , NOx ),并且也从 255-m 收集了声音的风速表数据气象学的塔。把大小基于这些, PBL 的进化被估计。平均 PBL 高度在夜间期间在 noon/afternoon-time,和 200300 m 期间是大约 10001300 m。PBL 高度和喷雾器集中是相关反的在期间清楚并且薄雾条件。当平均喷雾器集中分别地是在薄雾和晴朗天空条件下面的 52 和 17 g/m3 时,平均最大的 PBL 高度是 1.08 和 1.70 km。太阳的放射上的喷雾器和云的影响基于从 255-m 收集的声音的风速表数据被观察气象学的塔。当 PBL 的镇压结构进一步削弱了污染物质的散开时,热流动被发现被薄雾(重污染) 或云显著地减少了,它趋于压抑 PBL 的发展,导致重污染。这个可能的积极反馈周期(更多的喷雾器降低 PBL 高度更多的喷雾器) 将在大城市为重地面污染导致一个加速过程。 | Jiannong Quan Yang Gao Qiang Zhang Xuexi Tie Junji Cao Suqin Han Junwang Meng Pengfei Chen Delong Zhao | 2013 | Particuology2013，11，1： | 51 |
| 4 | Aerosol pollution in China:Present and future impact on environment显示文摘With its dense population, rapid economic growth and dramatic rate of urbanization, China is experiencing extreme air pollution problems. This is particularly the case in Central-Eastern China (CEC), where the two major cities of Beijing and Tianjin are located, in the Yangtze-River Delta (YRD) with the city of Shanghai, and in the Pearl-River Delta (PRD) with the mega-city of Guangzhou. Space observations show that the atmospheric aerosol load in these three regions is considerably higher than, for example, in the urbanized regions of Europe and North America. The high aerosol concentrations in these regions have raised many environmental problems, such as impact on human health, visibility, and climate changes. In this paper, several crucial issues regarding aerosol pollution in these highly populated regions (CEC, YRD, and PRD) are discussed, including (1) when the aerosol load starts to rapidly increase in these regions; (2) how the high aerosol concentrations affects the environment; and (3) what the potential consequences are under possible low aerosol load in these regions. Discussion on these crucial issues might lead to some insight for better understanding of the characterizations of aerosol pollution due to the rapid economical development in China. | Xuexi Tie Junji Cao | 2009 | Particuology2009，7，6： | 48 |
| 5 | Effect of atmospheric aerosol on surface ozone variation over the Pearl River Delta region显示文摘Our analysis of the surface aerosol and ultraviolet(UV) measurements in Pearl River Delta(PRD) region shows that the sur-face UV radiation is reduced by more than 50% due to high aerosol concentrations.This has important impacts on urban eco-system and photochemistry,especially on ozone photochemical production over the region.The quantitative effect of aerosols on surface ozone is evaluated by analyzing surface observations(including ozone,ultraviolet radiation,aerosol radiative pa-rameters) and by using radiative and chemical models.A case study shows that the aerosol concentrations and UV radiation are significantly correlated with ozone concentrations.The correlation coefficient between the aerosol optical depth(AOD) and the PM10 mass concentration is very high,with a maximum of 0.98,and the AOD and UV radiation/ozone is anti-correlated,with a correlation coefficient of -0.90.The analysis suggests that ozone productivity is significantly decreased due to the reduction of UV radiation.The noon-time ozone maximum is considerably depressed when AOD is 0.6,and is further decreased when AOD is up to 1.2 due to the reduction of ozone photochemical productivity.Because the occurring probability of aerosol optical depth for AOD550 nm≥0.6 and AOD340 nm≥1.0 is 47,and 55% respectively during the dry season(October,November,December,January),this heavy aerosol condition explains the low ozone maximum that often occurs in the dry season over the Guangzhou region.The analysis also suggests that the value of single scattering albedo(SSA) is very sensitive to the aerosol radiative effect when the radiative and chemical models are applied,implying that the value of SSA needs to be carefully studied when the models are used in calculating ozone production. | DENG XueJiao ZHOU XiuJi WU Dui TIE XueXi TAN HaoBo LI Fei BI XueYan DENG Tao JIANG DeHai | 2011 | Science China Earth Sciences2011，54，5： | 10 |
| 6 | Analysis of the causes of heavy aerosol pollution in Beijing,China:A case study with the WRF-Chem model显示文摘The causes and variability of a heavy haze episode in the Beijing region was analyzed.During the episode,the PM2.5 concentration reached a peak value of 450 μg/kg on January 18,2013 and rapidly decreased to100 μg/kg on January 19,2013,characterizing a large variability in a very short period.This strong variability provides a good opportunity to study the causes of the haze formation.The in situ measurements(including surface meteorological data and vertical structures of the winds,temperature,humidity,and planetary boundary layer(PBL)) together with a chemical/dynamical regional model(WRF-Chem) were used for the analysis.In order to understand the rapid variability of the PM2.5 concentration in the episode,the correlation between the measured meteorological data(including wind speed,PBL height,relative humidity,etc.) and the measured particle concentration(PM2.5 concentration) was studied.In addition,two sensitive model experiments were performed to study the effect of individual contribution from local emissions and regional surrounding emissions to the heavy haze formation.The results suggest that there were two major meteorological factors in controlling the variability of the PM2.5 concentration,namely,surface wind speed and PBL height.During high wind periods,the horizontal transport of aerosol particles played an important role,and the heavy haze was formed when the wind speeds were very weak(less than 1 m/s).Under weak wind conditions,the horizontal transport of aerosol particles was also weak,and the vertical mixing of aerosol particles played an important role.As a result,the PBL height was a major factor in controlling the variability of the PM_(2.5) concentration.Under the shallow PBL height,aerosol particles were strongly confined near the surface,producing a high surface PM_(2.5) concentration.The sensitivity model study suggests that the local emissions(emissions from the Beijing region only)were the major cause for the heavy haze events.With only local emissions,the calculated peak value of the PM_(2.5) concentration was 350 μg/kg,which accounted for 78%of the measured peak value(450 μg/kg).In contrast,without the local emissions,the calculated peak value of the PM_(2.5) concentration was only100 μg/kg,which accounted for 22%of the measured peak value. | Hui He Xuexi Tie Qiang Zhang Xiange Liu Qian Gao Xia Li Yang Gao | 2015 | Particuology2015，13，3： | 9 |
| 7 | Variability of SO_2 in an intensive fog in North China Plain:Evidence of high solubility of SO_2显示文摘一个地实验在在 11 月 5 日和 2009 年 11 月 8 日之间的一个集中的雾事件被进行,在在诺思中国平原(NCP ) 的一个重重地弄脏 SO2 的区域,到措施 SO2 和其它空气污染物质,雾微滴的液体水内容(LWC ) ,和另外的基本气象学的参数。在雾时期期间, SO2 的集中在雾微滴与 LWC 有关仔细显示出大可变性,它是。, SO2 的平均集中在雾时期期间在非雾时期期间是大约 25 ppbv,它很快归结为大约 47 ppbv。SO2 的如此的大减小建议由于 SO2 的高溶解度, SO2 (大约 70%80%) 的一个多数在雾微滴在水里从气体回复了到水的阶段。然而,到水的阶段变换的计算气体被仅仅使用亨利 SO2 的法律常数大部分低估,因此在雾微滴建议 SO2 的那水的反应可能在提高 SO2 的溶解度起某重要作用。简化现象,一个有效溶解度系数在这研究被建议。SO2 测量的这可变性在 NCP 在雾微滴,为在云的酸味的更好的理解的因此提供的重要含意,猛冲,和雾在广泛的雾事件期间提供 SO2 的氧化的直接证据,现在在中国的一个中央环境焦点由于它的快速的经济发展。 | Qiang Zhang Xuexi Tie Weili Lin Junji Cao Jiannong Quan Liang Ran Wanyun Xu | 2013 | Particuology2013，11，1： | 8 |
| 8 | Attenuation of ultraviolet radiation reaching the surface due to atmospheric aerosols in Guangzhou显示文摘The UV attenuation due to atmospheric aerosols in Guangzhou was quantitatively assessed using surface ultraviolet radiation (UV,295-385 nm) observation,sun photometer and radiation models.Observations showed that the annual average value of aerosol optical depth (AOD) was 1.19 in UV spectral region of 340 nm,the annual average occurrence frequency of aerosol optical depth AOD 340 nm >1.0 was 55%,and the annual average attenuation rate of surface UV direct radiation of 340 nm was 68%.It was proven in the observation of surface UV radiation and model evaluation that annual average attenuation of UV due to atmosphere was 75%,and that reached 72% in the dry season (October,November,December and January);while average attenuation of UV due to atmospheric aerosols reached 62% in the dry season.It was indicated that very significant UV attenuations due to atmospheric aerosols existed in Guangzhou urban agglomeration,and at least half of UV radiation was attenuated due to atmospheric aerosols.Such large-amplitude attenuation will have a significant impact on urban ecosystem and species chemical cycles,especially photochemical reaction processes. | DENG XueJiao ZHOU XiuJi TIE XueXi WU Dui LI Fei TAN HaoBo DENG Tao | 2012 | Chinese Science Bulletin2012，57，21： | 6 |
| 9 | Possible effects of climate change of wind on aerosol variation during winter in Shanghai,China显示文摘Several data sets were introduced to investigate the possible effects of climate-change-related variation of wind on aerosol concentration during winter in Shanghai,China.These data sets included the daily wind speed,wind direction,visibility,and precipitation from '1956 to 2010,hourly PM_(10) concentration from 2008 to 2010,and the NCEP/NCAR reanalysis data of global atmospheric circulation from 1956 to2010.The trend of aerosol concentration and its correlations with wind speed and wind direction in winter were analyzed.Results indicated that there was an increase in the number of haze days in winter of 2.1 days/decade.Aerosol concentration,represented by PM_(10) in this study,was highly correlated to both wind speed and direction in winter.The PM_(10) concentration increased as wind speed decreased,reaching maximum values under static wind conditions.The PM_(10) concentration was relatively lower under easterly winds and higher under westerly winds.The analysis showed that weaker East Asia winter monsoons have resulted in a reduction of wind speed,increase in static wind frequency,and decline in the frequency of northerly winds since the 1980 s.Moreover,the rapid expansion of urban construction in Shanghai has changed the underlying surface considerably,which has led to a reduction in wind speed.Finally,a wind factor was defined to estimate the combined effects of wind speed and wind direction on aerosol concentrations in Shanghai.The analysis of this factor indicated that changes in atmosphere circulation and urbanization have had important effects on the number of winter haze days in Shanghai. | Weidong Zhou Xuexi Tie Guangqiang Zhou Ping Liang | 2015 | Particuology2015，13，3： | 6 |
| 10 | Origin,evolution,and distribution of atmospheric aerosol particles in Asia显示文摘In recent years,Asia became the region with the highest increase in rate of urbanization and economic development in the world.According to recent estimates from the United Nations,the world population will increase 36%between 2000 and 2030,leading to a doubling of the number of urban dwellers in less developed regions,like Asia.Such rapid economic development has many associated environmental problems,including development of heavy aerosol pollution over Asia.Aerosol particles have a direct radiative forcing effect on climate because they scatter and absorb solar and | Xuexi Tie | 2015 | Particuology2015，13，3： | 2 |
| 11 | Characteristics and source apportionment of VOCs measured in Shanghai, China显示文摘 | Changjie Cai Fuhai Geng Xuexi Tie Qiong Yu Junlin An | 2010 | Atmospheric Environment2010，，38： | 2 |
| 12 | An extremely low visibility event over the Guangzhou region: A case study显示文摘 | Dui Wu Xuexi Tie Chengcai Li Zhuming Ying Alexis Kai-Hon Lau Jian Huang Xuejiao Deng Xueyan Bi | 2005 | Atmospheric Environment2005，，35： | 2 |
| 13 | One comment显示文摘This paper presents a proposal.in which it proposes to build windbreak walls equipped with solar panels in the proximity of dust origins to mitigate large scale dust storms.Strong dust stormsoften occur not only nearby the desert region.but also spread out to a large region in northern China,including some large cities in northeastern China,such as Beijing.the capital citv of China. | Xuexi Tie | 2014 | Particuology2014，12，2： | 2 |
| 14 | Lung cancer mortality and exposure to atmospheric aerosol particles in Guangzhou, China显示文摘 | Xuexi Tie Dui Wu Guy Brasseur | 2009 | Atmospheric Environment2009，，14： | 2 |
| 15 | Biogenic emissions of isoprenoids and NO in China and comparison to anthropogenic emissions显示文摘 | Xuexi Tie Guohui Li Zhuming Ying | 2006 | Science of the Total Environment2006，371，： | 1 |
| 16 | Lung Cancer Mortality and Exposure to Atmospheric Aerosol Particles in Guangzhou China 显示文摘 | Tie Xuexi Wu Dui Brasseur G | 2009 | Atmospheric Environment2009，43，14： | 1 |
| 17 | Characteristics and source apportionment of VOCs measured in Shanghai, China显示文摘 | Changjie Cai Fuhai Geng Xuexi Tie Qiong Yu Junlin An | 2010 | Atmospheric Environment2010，，38： | 1 |
| 18 | Lung cancer mortality and exposure to atmospheric aerosol particles in Guangzhou, China 显示文摘 | TIE Xuexi WU Dui BRASSEUR G | 2009 | Atmos Environ2009，43，14： | 1 |
| 19 | Characteristics and source apportionment of VOCs measured in Shanghai, China显示文摘 | Changjie Cai Fuhai Geng Xuexi Tie Qiong Yu Junlin An | 2010 | Atmospheric Environment2010，，38： | 1 |
| 20 | An extremely low visibility event over the Guangzhou region: A case study 显示文摘 | Wu Dui Tie Xuexi Li Chengcai | 2005 | Atmospheric Environment2005，39，35： | 1 |
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