Location :Aerosol and Environment Division, affiliated with the Institute of Earth Environment, Chinese Academy of Sciences (IEECAS), currently has employees of 25 and is directed by Prof. Junji CAO.
Aerosol and Environment Division focuses on the forefront issues of aerosol sciences and pressing needs of the country, playing an active role in establishing substantive and sustainable collaborations with world-renowned research groups. Successions of scientific achievements were gained from original research in the field of fugitive dust, black carbon, organic aerosol and PM2.5, results of which have produced significant impacts both nationally and internationally.
After over two decades’ efforts, Aerosol and Environment Division is stepping up on the international stage as an important organization in aerosol research.
History
Research Scope
l Key species of aerosol and their climatic and environmental significance
l Advanced aerosol technology and its applications
l Source apportionment and pollution control of PM2.5
l Aerosol Modeling
Missions
Aerosol and Environment Division takes full advantage of a closely-integrated approach containing field experiment, laboratory analysis, and numerical modeling to address the forefront scientific questions in aerosol research, particularly aiming at the physical-chemical-biological processes of black carbon and organic aerosols as well as their impacts on climate and environment. By aligning the theoretical and technical development with our national needs, and exploring aerosol pollution control technology in industrial applications, we seek to build Aerosol and Environment Division as a frontrunner in the country and an internationally recognized group in both aerosol science and technology. The division will be constructed as a national innovation center for aerosol science and high-level training base for aerosol scientists, guiding the directions of aerosol research in China and providing substantial contributions on sustainable development of society and economy as well as the protection of environment and ecosystem.
Organization Structure
Facilities
l Aerosol & Gas Sampling Platform
More than 100 samplers and real-time monitors have been adopted in continuous aerosol sampling for more than 10 years.
l Aerosol Chemical Analysis System
The aerosol chemical analysis system in Aerosol and Environment Division is capable of analyzing the chemical composition of atmospheric particles, including:
ü Gravimetric mass——Electronic Microbalance
ü Carbonaceous composition——Carbon Analyzer
ü Water soluble ions——IC
ü Elemental composition——EDXRF/WDXRF
ü Organic speciation——GC/GC-MS/TD-GC-MS
ü Carbonyl compounds——HPLC
l High-resolution Real-time Measurement Platform
The high-resolution real-time measurement platform in Aerosol and Environment Division are composed mainly of instruments below:
ü Single Particle Soot Photometer (SP2)
ü Aerosol Chemical Speciation Monitor (ACSM)
ü Humidified Tandem Differential Mobility Analyzer (HTDMA)
ü CIMEL Sun Photometer
ü Photoacoustic Extinctiometer (PAX)
l Combustion Experiment Platform
The combustion experiment platform consists of re-suspension Chamber, Collecting residual in combustion chamber and Re-suspension tube onto dilution system in Aerosol and Environment Division.
l Aerosol Modeling Platform
To meet the increasing demands for data storage and computing speed in aerosol modeling, our lab has been equipped with IBM Blade Servers (28 pieces, 336 cores in total) which are based on Intel Nehalem Processor. Each server contains the newly-developed Xeon 6C X5675 Processor, which largely improves the computing power and memory bandwidth of single systems in the continuation of high-performance architecture, providing a platform for simulation and calculation. The Bluefire server in US National Center for Atmospheric Research (NCAR) is also available for researchers in Aerosol and Environment Division.
Publications (since 2011)
1. Cao J.J., , Zhu C.S., Tie X.X., Geng F.H., Xu H.M., Wang G.H., Han Y.M., Ho K.F., Ho. S.S.H. Characteristics and sources of carbonaceous aerosols from Shanghai, China, Atmos. Chem. Phys. 13, 803–817, 2013.
2. Wang Q.Y., Cao J.J., Tao J., Shen Z.X., Tang X.Y., Luo L. Chemical characteristics of PM2.5 on dust storms and air pollution events at Chengdu, China. Particuology. 11, 70-77, 2013.
3. Xu H.M., Tao J., Ho. S.S.H., Ho K.F., Cao J.J., Li N., Chow J.C., Wang G.H., Han Y.M., Zhang R.J., Watson J.G., Zhang J.Q. Characteristics of fine particulate non-polar organic compounds in Guangzhou during the 16th Asian Games: Effectiveness of air pollution controls, Atmos. Environ. xxx 1-8. 2013.
4. Wang G.H., Zhou B.H., Cheng C.L., Cao J.J., Li J.J., Meng J.J., Tao J., Zhang R.J., Fu P.Q. Impact of Gobi desert dust on aerosol chemistry of Xi’an, inland China during spring 2009: differences in composition and size distribution between the urban ground surface and the mountain atmosphere. Atmos. Chem. Phys., 13, 819–835, 2013.
5. Zhang N.N., Cao J.J., Xu H.M., Zhu C.S. Elemental compositions of PM2.5 and TSP in Lijiang, southeastern edge of Tibetan Plateau during pre-monsoon period. Particuology. 11, 63-69, 2013.
6. Zhan C.L., Han Y.M., Cao J.J., Wei C., Zhang J.Q., An Z.S. Validation and application of a thermal–optical reflectance (TOR) method for measuring black carbon in loess sediments. Chemosphere. 91, 1462–1470, 2013.
7. Cao, J.J., Wang, Q.Y., Chow, J.C., et al. Impacts of aerosol compositions on visibility impairment in Xi’an, China. Atmos. Environ., 2012, 59，559–566
8. Cao, J.J., Xu, H.M., Xu, Q., et al. Fine Particulate Matter Constituents and Cardiopulmonary Mortality in a Heavily-Polluted Chinese City. Environmental Health Perspectives, 2012, 120, 3, 373–378
9. Cao, J.J., Zhu, C.S., Tie, X.X., et al. Characteristics and sources of carbonaceous aerosols from Shanghai, China. Atmospheric Chemistry and Physics Discussions, 2012, 12, 16811–16849·220
10. Cao, J.J., Huang, H., Lee, S.C., et al. Indoor/outdoor relationships for organic and elemental carbon in PM2.5 at residential homes in Guangzhou, China. Aerosol & Air Quality Research, 2012, 12: 902–910
11. Cao, J.J., Shen, Z.X., Chow, J.C., et al. Winter and summer PM2.5 chemical composition in fouteen Chinese cities. Journal of the Air & Waste Management Association, 2012, DOI: 10.1080/1 0962247.2012.701193
12. Cao, L.N.Y., Cao, J.J., Lee, S.C., et al.Numerical Simulation of the Micro Environment in the Han Yang Mausoleum Museum via Fluent.Aerosol & Air Quality Research, 2012, 12, 4, 544–552
13. Dai, W.T., Ho, S.S.H., Cao, J.J., et al. Seasonal and diurnal variations of mono- and di-carbonyls in Xi'an, China. Atmospheric Research, 2012, 113, 102–112
14. Dai, W.T., Ho, S.S.H., Cao, J.J. et al. Characterization of particulate-phase high molecular weight mono-carbonyls and dicarbonyls in urban atmosphere of Xi’an, China. Aerosol & Air Quality Research, 2012, 12: 892–901
15. Han, Y.M., Cao, J.J., Wu, F., et al. Geochemistry and environmental assessment of major and trace elements in the surface sediments of the Wei River, China, Journal of Environmental Monitoring, 2012, 14, 2762-2771
16. Hu, T.F., Cao, J.J., Shen, Z.X., et al. Size-differentiated characterization of individual atmospheric aerosol particles during winter in Xi’an, China: A polit study. Aerosol & Air Quality Research, 2012, in press
17. Huang, Y., Ho, S.S.H., Ho, K.F., et al. Optimization of solid-phase microextraction (SPME) to determine airborne biogenic volatile organic compounds (BVOCs): An application for measurement of household cleaning products Analytical Methods, 2012, 4, 277–283
18. Huang, Y., Lee, S.C., Ho, K.F., et al. Effect of ammonia on ozone-initiated formation of indoor secondary products with emissions from cleaning products. Atmospheric Environment, 2012, 58, 224–231
19. Li, J.J., Wang, G.H., Zhou, B.H., et al. Airborne particulate organics at the summit (2060 m, a.s.l.) of Mt. Hua in central China during winter: Implications for biofuel and coal combustion. Atmospheric Research, 2012, 106, 108–119
20. Tao, J., Cao, J.J., Zhang, R.J., et al. Reconstructed light extinction coefficients using chemical compositions of PM2.5 in winter in Urban Guangzhou, China. Advance in Atmospheric Science, 2012, 29, 2, 359–368
21. Wang, G.H., Li, J.J., Cheng, C.L., et al. Observation of atmospheric aerosols at Mt. Hua and Mt. Tai in central and east China during spring 2009-Part 2: Impact of dust storm on organic aerosol composition and size distribution. Atmospheric Chemistry and Physics, 2012, 12, 4065–4080
22. Wang, G.H., Kawamura, Cao, J.J., et al. Molecular Distribution and Stable Carbon Isotopic Composition of Dicarboxylic Acids, Ketocarboxylic Acids, and alpha-Dicarbonyls in Size-Resolved Atmospheric Particles From Xi'an City, China. Environmental Science & Technology, 2012, 46, 4783–4791
23. Wang, G.H., Zhou, B.H., Cheng, C.L., et al. Impact of Gobi desert dust on aerosol chemistry of Xi’an, inland China: Differences in composition and size distribution between the urban ground surface and the mountain atmosphere. Atmospheric Chemistry and Physics Discussions, 2012, 12, 21355–21397
24. Qiyuan Wang, Junji Cao, Jun Tao, Zhenxing Shen, Xinying Tang, Lei Luo. Chemical characteristics of PM2.5 on dust storms and air pollution events at Chengdu, China. Particuology, 11, 70-77, 2012.
25. Wang, Q.Y., Schwarz, J.P., Cao, J.J., et al. Single particle characterization of black carbon aerosol in the Northeast Tibetan Plateau, China. Atmospheric Chemistry and Physics Discussions, 2012, 12, 21947–21976
26. Wang, X., Shen, Z.X., Cao, J.J., et al. Characteristics of surface ozone at an urban site of Xi’an in Northwest China. Journal of Environmental Monitoring, 2012, 14, 116–126
27. Watson, J.G., Chow, J.C., Chen, L.W.A., et al. Elemental and morphological analyses of filter tape deposits from a beta attenuation monitor. Atmospheric Research, 2012, 106, 181–189
28. Xu, B.Q., Cao, J.J., Li, Z.Q., et al. Post-depositional enrichment of black soot in snow-pack and accelerated melting of Tibetan glaciers. Environmental Research Letters, 2012, 7, 014022
29. Xu, H.M., Cao, J.J., Ho, K.F., et al. Lead concentrations in fine particulate matter after the phasing out of leaded gasoline in Xi'an, China. Atmospheric Environment, 2012, 46, 217–224
30. Zhang, N.N., He, Y.Q., Cao, J.J., et al. Long-term trends in chemical composition of precipitation at Lijiang, southeast Tibetan Plateau, southwestern China.Atmospheric Research 2012, 106, 50–60
31. Zhang, N.N., Cao, J.J., Ho, K.F., et al. Chemical characterization of aerosol collected at Mt. Yulong in wintertime on the southeastern Tibetan Plateau. Atmospheric Research, 2012, 107, 76–85
32. Zhou, J.M., Cao, J.J., Zhang, R.J., et al. Carbonaceous and Ionic Components of Atmospheric Fine Particles in Beijing and their Impact on Atmospheric Visibility. Aerosol & Air Quality Research, 2012, 12, 492–502
33. Zhu, C.S., Tsai, C.J., Chen, S.C., et al. Positive sampling artifacts of organic carbon fractions for fine particles and nanoparticles in a tunnel environment. Atmospheric Environment, 2012, 54, 225–230
34. Zhu, C.S., Cao, J.J, Shen, Z.X., et al. The indoor and outdoor chemical components of PM 2.5 in rural area of northwestern China-Case study. Aerosol & Air Quality Research, 2012, in press
35. J.J. Cao , H. Huang, S.C. Lee, Judith C. Chow, C.W. Zou, K.F. Ho , John G. Watson, Indoor/Outdoor Relationships for Organic and Elemental Carbon in PM 2.5 at Residential Homes in Guangzhou, China, Aerosol and Air Quality Research, 2012, 12: 902–910
36. Tafeng Hu , Junji Cao, Zhenxing Shen, Gehui Wang, Shuncheng Lee, Kinfai Ho, Size Differentiation of Individual Atmospheric Aerosol during Winter in Xi'an, China, Aerosol and Air Quality Research, 2012, 12: 951–960
37. Han, Y. M., J. R. Marlon, J. J. Cao, Z. D. Jin, and Z. S. An, Holocene linkages between char, soot, biomass burning and climate from Lake Daihai, China, Global Biogeochem. Cycles, 2012, 26, GB4017, doi:10.1029/2011GB004197.
38. Changlin Zhan, Junji Cao, Yongming Han, Shaopeng Huang, Xiaming Tu,Ping Wang, Zhisheng An, Spatial distributions and sequestrations of organic carbon and black carbon in soils from the Chinese loess plateau, Science of the Total Environment,2012, in press
39. Cao, J.J., Li, H., Chow, J.C., et al. Chemical Composition of Indoor and Outdoor Atmospheric Particles at Emperor Qin's Terra-cotta Museum, Xi’an, China. Aerosol & Air Quality Research, 2011, 11, 70–79
40. Cao, J.J., Chow, J.C., Tao, J., et al. Stable carbon isotopes in aerosols from Chinese cities: Influence of fossil fuels. Atmospheric Environment, 2011, 45, 1359–1363
41. Cao, J.J., Watson, J.G., Chow, J.C. et al. A Special Issue of JA&WMA on Papers from the "Leapfrogging Opportunities for Air Quality Improvement Conference" Introduction. Journal of the Air & Waste Management Association, 2011, 61, 1091–1092
42. Chow, J.C., Watson, J.G., Robles, J., et al. Quality assurance and quality control for thermal/optical analysis of aerosol samples for organic and elemental carbon. Analytical and Bioanalytical Chemistry, 2011, 401, 10, 3141–3152··380
43. Chow, J.C., Watson, J.G., Chen, L.W., et al. PM2.5 source profiles for black and organic carbon emission inventories. Atmospheric Environment, 2011, 45, 31, 5407–5414
44. Geng, F.H., Tie, X.X., Cao, J.J., et al. Effect of isoprene emissions from major forests on ozone formation in the city of Shanghai, China. Atmospheric Chemistry and Physics, 2011, 11, 10449–10459
45. Han, Y.M., Cao, J.J., Yan, B.Z., et al. Comparison of elemental carbon in lake sediments measured by three different methods and 150-year pollution history in Eastern China. Environmental Science & Technology, 2011, 45, 5287–5293
46. Han, Y.M., Cao, J.J., Kenna, T.C., et al. Distribution and ecotoxicological significance of trace element contamination in a ~150 yr record of sediments in Lake Chaohu, Eastern China. Journal of Environmental Monitoring, 2011, 13, 743–75
47. Ho, K.F., Ho, S.S.H., Cao, J.J., et al. Summer and winter variations of dicarboxylic acids, fatty acids and benzoic acid in PM2.5 in Pearl Delta River Region, China. Atmospheric Chemistry and Physics, 2011, 11, 2197–2208
48. Ho, K.F., Zhang, R.J., Cao, J.J., et al. Characteristics of carbonate carbon in PM2.5 in a typical semi-arid area of Northeastern China. Atmospheric Environment, 2011, 45, 6, 1268–1274
49. Ho, S.S.H., Ho, K.F., Cao, J.J., et al. Unsuitability of using the DNPH-coated solid sorbent cartridge for determination of airborne unsaturated carbonyls. Atmospheric Environment, 2011, 45, 261–265
50. Ho, S.S.H., Chow, J.C., Cao, J.J., et al. Precautions for in-injection port thermal desorption-gas chromatography/mass spectrometry (TD-GC/MS) as applied to aerosol filter samples. Atmospheric Environment, 2011, 45, 1491–1496
51. Hu, T.F., Cao, J.J., Ho, K.F., et al. Winter and summer characteristics of airborne particles inside Emperor Qin’s Terra-Cotta Museum, China: A study by SEM-EDX. Journal of the Air & Waste Management Association, 2011, 61, 9, 914–922
52. Huang, Y., Ho, S.S.H., Ho, K.F. et al. Characterization of biogenic volatile organic compounds (BVOCs) in cleaning reagents and air fresheners in Hong Kong. Atmospheric Environment, 2011, 45, 34, 6191–6196
53. Huang, Y., Ho, S. S. H., Ho, K. F., et al. Characteristics and health impacts of VOCs and carbonyls associated with residential cooking activities in Hong Kong. Journal of Hazardous Materials, 2011, 186, 344–351.
54. Huang, Y., Ho, K.F., Ho, S.S.H., et al. Physical parameters effect on ozone-initiated formation of indoor secondary organic aerosols with emissions from cleaning products. Journal of Hazardous Materials, 2011, 192, 3, 1787–1794·
55. Li, J.J., Wang, G.H., Zhou, B.H., et al. Chemical composition and size distribution of wintertime aerosols in the atmosphere of Mt. Hua in central China. Atmospheric Environment, 2011, 45, 1251–1258
56. Shen, Z.X., Wang, X., Cao, J.J., et al. Chemical Composition of Water-soluble Ions and Carbonate Estimation in Spring Aerosol at a Semi-arid Site of Tongyu, China. Aerosol & Air Quality Research, 2011, 11, 360–368
57. Shen, Z.X., Cao, J.J., Liu, S.X., et al. Chemical composition of PM10 and PM2.5 collected at ground level and 100-m during a strong winter-time pollution episode in Xi'an, China. Journal of the Air & Waste Management Association, 2011, 61, 11, 1150–1159
58. Wang, G.H., Li, J., Cheng, C., et al. Observation of atmospheric aerosols at Mt. Hua and Mt. Tai in central and east China during spring 2009 –Part 1: EC, OC and inorganic ions. Atmospheric Chemistry and Physics, 2011, 11, 4221–4235
59. Wang, G.H., Cheng, C.L., Li, J.J., et al. Molecular composition and size distribution of sugars, sugar-alcohols and carboxylic acids in airborne particles during a severe urban haze event caused by wheat straw burning. Atmospheric Environment, 2011, 45, 2473–2479
60. Wang, G.H., Kawamura, K., Cao, J.J., et al. Selected water-soluble organic compounds found in size-resolved aerosols collected from urban, mountain and marine atmospheres over East Asia. Tellus B-chemical and physical meteorology, 2011, 63B, 371–381
61. Watson, J.G., Chow, J.C., Chen, L., et al. Measurement System Evaluation for Upwind/Downwind Sampling of Fugitive Dust Emissions. Aerosol & Air Quality Research, 2011, 11, 4, 331–350
62. Watson, J.G., Chow, J.C., Sodeman, D.A., et al. Comparison of four scanning mobility particle sizers at the Fresno Supersite. Particuology, 2011, 9, 3, 204–209
63. Wu, F., Chow, J.C., Cao, J.J., et al. Size-differentiated chemical characteristics of Asian paleo-dust: records from aeolian deposition on Chinese Loess Plateau. Journal of the Air & Waste Management Association, 2011, 61, 2, 180–189
64. Zhang, T., Cao, J.J., Tie, X.X., et al. Water-soluble ions in atmospheric aerosols measured in Xi’an, China: Seasonal variations and sources. Atmospheric Research, 2011, 102, 110–119.
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