*In preparation/submitted/in review

Yin, L., Bai, B., Zhang, B., Zhu, Q., Di, Q., Requia., W. J., Mickley, L. J., Schwartz, J. D., Shi, L., & Liu, P.* (2023). Climate Penalty on Air Pollution Abated by Anthropogenic Emission Reductions in the United States. In review. [preprint]

Chase K. Glenn, Omar El Hajj, Zachary McQueen, Ryan Poland, Robert Penland, Elijah Roberts, Jonathan Choi, Bin Bai, Nara Shin,  Anita Anosike, Kruthika Kumar, Pengfei Liu, I. Jonathan Amster, Geoffery Smith, Joseph O’Brien, Rawad Saleh (2024). Brown Carbon Emissions from Biomass Burning Under Wildfire and Prescribed-fire Conditions. In review. 

Liu, P.*, Mickley, L. J., Chellman, N. J., Zhang, B., Markle, B. R., Arienzo, M. M., Wensman, S., McConnell, J. R. (2024). Rapid Responses of Aerosol Emissions and Transport to Abrupt Climate Transitions during the Last Glacial Period. Submitted.  

Strawson, I., Faïn, X., Bauska, T., Muschitiello, F., Vladimirova, D. O., Tetzner, D. R., Humby, J., Thomas, E. R., Liu, P., Zhang, B., Grilli, R., Rhodes R. H. (2024) Pre-industrial Southern Hemisphere biomass burning variability inferred from ice core CO records. Submitted.

He, Y., Kadko, D. C., Stephens, M. P., Sheridan, M. T., Buck, C. S.,, Marsay, C. M., Landing, W. M., Zheng, M., Liu, P. (2024) Constraining aerosol deposition over the global ocean. Submitted.

Peer-reviewed articles


Zhang, B., Chellman, N. J., Kaplan, J. O., Mickley, L. J., Ito, T., Wang, X., Wensman, S. M., McCrimmon, D., Steffensen, J. P., McConnell, J. R., & Liu, P.* (2024). Improved biomass burning emissions from 1750 to 2010 using ice core records and inverse modeling. Nature Communications, 15(1), 3651.

Kuang, Y., Xu, W., Tao, J., Luo, B., Liu, L., Xu, H., Xu, W., Xue, B., Zhai, M., Liu, P., and Sun, Y. (2024). Divergent Impacts of Biomass Burning and Fossil Fuel Combustion Aerosols on Fog-Cloud Microphysics and Chemistry: Novel Insights From Advanced Aerosol-Fog Sampling, Geophys. Res. Lett., 51, e2023GL107147,


Soni, M., Sander, R., Sahu, L. K., Taraborrelli, D., Liu, P., Patel, A., Girach, I. A., Pozzer, A., Gunthe, S. S., and Ojha, N. (2023). Comprehensive multiphase chlorine chemistry in the box model CAABA/MECCA: implications for atmospheric oxidative capacity, Atmos. Chem. Phys., 23, 15165-15180, 10.5194/acp-23-15165-2023.

Lambe, A. T., Bai, B., Takeuchi, M., Orwat, N., Zimmerman, P. M., Alton, M. W., Ng, N. L., Freedman, A., Claflin, M. S., Gentner, D. R., Worsnop, D. R., & Liu, P. (2023). Technical note: Gas-phase nitrate radical generation via irradiation of aerated ceric ammonium nitrate mixtures. Atmos. Chem. Phys., 23(21), 13869-13882.

Singh, A., Raj, S. S., Panda, U., Kommula, S. M., Jose, C., Liu, T., Huang, S., Swain, B., Pöhlker, M. L., Reyes-Villegas, E., Ojha, N., Vaishya, A., Bigi, A., Ravikrishna, R., Zhu, Q., Shi, L., Allen, J., Martin, S. T., McFiggans, G., Andreae, M. O., Pöschl, U., Coe, H., Bianchi, F., Su, H., Kanawade, V. P., Liu, P.*, and Gunthe, S. S.*: Rapid growth and high cloud-forming potential of anthropogenic sulfate aerosol in a thermal power plant plume during COVID lockdown in India, npj Climate and Atmospheric Science, 6, 109, 10.1038/s41612-023-00430-2, 2023.

Lee, W.-C., Liu, P., Han, Y., Martin, S. T., & Kuwata, M. (2023). Accounting for Cloud Nucleation Activation Mechanism of Secondary Organic Matter from α-Pinene Oxidation Using Experimentally Retrieved Water Solubility Distributions. Environmental Science & Technology, 57(36), 13439-13448.

Li, Y.+, Bai, B+., Dykema, J., Shin, N., Lambe, A. T., Chen, Q., Kuwata, M., Ng, N. L., Keutsch, F. N.*, & Liu, P.* (2023). Predicting Real Refractive Index of Organic Aerosols From Elemental Composition. Geophysical Research Letters, 50(12), e2023GL103446. (+ contribute equally)

Jo, H.-Y., Park, J., Heo, G., Lee, H.-J., Jeon, W., Kim, J.-M., Kim, S., Kim, J.-K., Liu, Y., Liu, P., Zhang, B., & Kim, C.-H. (2023). Interpretation of the effects of anthropogenic chlorine on nitrate formation over northeast Asia during KORUS-AQ 2016. Science of The Total Environment, 894, 164920.

Hao, H., Wang, Y., Zhu, Q., Zhang, H., Rosenberg, A., Schwartz, J., Amini, H., van Donkelaar, A., Martin, R., Liu, P., Weber, R., Russel, A., Yitshak-sade, M., Chang, H., & Shi, L. (2023). National Cohort Study of Long-Term Exposure to PM2.5 Components and Mortality in Medicare American Older Adults. Environmental Science & Technology, 57(17), 6835-6843.

Wang, Y., Liu, P.*, Schwartz, J., Castro, E., Wang, W., Chang, H., Scovronick, N., & Shi, L.* (2023). Disparities in ambient nitrogen dioxide pollution in the United States. Proceedings of the National Academy of Sciences, 120(16), e2208450120. [PNAS Podcast]

Tao, J., Kuang, Y., Luo, B., Liu, L., Xu, H., Ma, N., Liu, P., Xue, B., Zhai, M., Xu, W., Xu, W., & Sun, Y. (2023). Kinetic Limitations Affect Cloud Condensation Nuclei Activity Measurements Under Low Supersaturation. Geophysical Research Letters, 50(4), e2022GL101603.

Shi, L.*, Zhu, Q., Wang, Y., Hao, H., Zhang, H., Schwartz, J., Amini, H., van Donkelaar, A., Martin, R. V., Steenland, K., Sarnat, J. A., Caudle, W. M., Ma, T., Li, H., Chang, H. H., Liu, J. Z., Wingo, T., Mao, X., Russell, A. G., Weber, R. J., Liu, P.* (2023). Incident dementia and long-term exposure to constituents of fine particle air pollution: A national cohort study in the United States. Proceedings of the National Academy of Sciences, 120(1), e2211282119. 


Gopinath, A. K., Raj, S. S., Kommula, S. M., Jose, C., Panda, U., Bishambu, Y., Ojha, N., Ravikrishna, R., Liu, P.*, & Gunthe, S. S.* (2022). Complex Interplay Between Organic and Secondary Inorganic Aerosols With Ambient Relative Humidity Implicates the Aerosol Liquid Water Content Over India During Wintertime. Journal of Geophysical Research: Atmospheres, 127(13), e2021JD036430.

Ma, T., Yazdi, M. D., Schwartz, J., Réquia, W. J., Di, Q., Wei, Y., Chang, H. H., Vaccarino, V., Liu, P., & Shi, L. (2022). Long-term air pollution exposure and incident stroke in American older adults: A national cohort study. Global Epidemiology, 4, 100073.

Chen, Y.*, Wang, Y., Nenes, A., Wild, O., Song, S., Hu, D., Liu, D., He, J., Hildebrandt Ruiz, L., Apte, J. S., Gunthe, S. S.*, & Liu, P.* (2022). Ammonium Chloride Associated Aerosol Liquid Water Enhances Haze in Delhi, India. Environmental Science & Technology, 56(11), 7163-7173.

Zhang, B., Shen, H., Yun, X., Zhong, Q., Henderson, B. H., Wang, X., Shi, L., Gunthe, S. S., Huey, L. G., Tao, S., Russell, A. G., & Liu, P.* (2022). Global Emissions of Hydrogen Chloride and Particulate Chloride from Continental Sources. Environmental Science & Technology, 56(7), 3894-3904.

Li J, Wang Y, Steenland K, Liu P, van Donkelaar A, Martin RV, Chang HH, Caudle WM, Schwartz J, Koutrakis P, Shi L. Long-term effects of PM2.5 components on incident dementia in the northeastern United States. The Innovation. 2022;3(2):100208. doi:

Qin, Y., Ye, J., Ohno, P., Liu, P., Wang, J., Fu, P., Zhou, L., Li, Y. J., Martin, S. T., & Chan, C. K. (2022). Assessing the Nonlinear Effect of Atmospheric Variables on Primary and Oxygenated Organic Aerosol Concentration Using Machine Learning. ACS Earth and Space Chemistry, 6(4), 1059-1066.

Zhai, J., Yang, X., Li, L., Bai, B., Liu, P., Huang, Y., Fu, T.-M., Zhu, L., Zeng, Z., Tao, S., Lu, X., Ye, X., Wang, X., Wang, L., & Chen, J. (2022). Absorption Enhancement of Black Carbon Aerosols Constrained by Mixing-State Heterogeneity. Environmental Science & Technology, 56(3), 1586-1593.

Wang, Y., Xiao, S., Zhang, Y., Chang, H., Martin, R. V., Van Donkelaar, A., Gaskins, A., Liu, Y., Liu, P., & Shi, L. (2022). Long-term exposure to PM2.5 major components and mortality in the southeastern United States. Environment International, 158, 106969.


Qian, Y., Li, H., Rosenberg, A., Li, Q., Sarnat, J., Papatheodorou, S., Schwartz, J., Liang, D., Liu, Y., Liu, P., & Shi, L. Long-Term Exposure to Low-Level NO2 and Mortality among the Elderly Population in the Southeastern United States. Environmental Health Perspectives, 129(12), 127009.

Shi, L., Steenland, K., Li, H., Liu, P., Zhang, Y., Lyles, R. H., Requia, W. J., Ilango, S. D., Chang, H. H., Wingo, T., Weber, R. J., & Schwartz, J. (2021). A national cohort study (2000–2018) of long-term air pollution exposure and incident dementia in older adults in the United States. Nature Communications, 12(1), 6754.

Shi, L., Rosenberg, A., Wang, Y., Liu, P., Danesh Yazdi, M., Réquia, W., Steenland, K., Chang, H., Sarnat, J. A., Wang, W., Zhang, K., Zhao, J., & Schwartz, J. (2022). Low-Concentration Air Pollution and Mortality in American Older Adults: A National Cohort Analysis (2001–2017). Environmental Science & Technology, 56(11), 7194-7202.

Zhai, S., Jacob, D. J., Brewer, J. F., Li, K., Moch, J. M., Kim, J., Lee, S., Lim, H., Lee, H. C., Kuk, S. K., Park, R. J., Jeong, J. I., Wang, X., Liu, P., Luo, G., Yu, F., Meng, J., Martin, R. V., Travis, K. R., Hair, J. W., Anderson, B. E., Dibb, J. E., Jimenez, J. L., Campuzano-Jost, P., Nault, B. A., Woo, J.-H., Kim, Y., Zhang, Q., Liao, H. (2021). Relating geostationary satellite measurements of aerosol optical depth (AOD) over East Asia to fine particulate matter (PM2.5): insights from the KORUS-AQ aircraft campaign and GEOS-Chem model simulations. Atmos. Chem. Phys., 21(22), 16775-16791.

McConnell, J. R., Chellman, N. J., Mulvaney, R., Eckhardt, S., Stohl, A., Plunkett, G., Kipfstuhl, S., Freitag, J., Isaksson, E., Gleason, K. E., Brugger, S. O., McWethy, D. B., Abram, N. J., Liu, P., & Aristarain, A. J. (2021). Hemispheric black carbon increase after the 13th-century Māori arrival in New Zealand. Nature, 598(7879), 82-85.

Kommula, S. M., Upasana, P., Sharma, A., Raj, S. S., Reyes-villegas, E., Liu, T., Allan, J. D., Jose, C., Pöhlker, M. L., Ravikrishna, R., Liu, P., Su, H., Martin, S. T., Pöschl, U., McFiggans, G., Coe, H., & Gunthe, S. S. (2021). Chemical Characterization and Source Apportionment of Organic Aerosols in the Coastal City of Chennai, India: Impact of Marine Air Masses on Aerosol Chemical Composition and Potential for Secondary Organic Aerosol Formation. ACS Earth and Space Chemistry, 5(11), 3197-3209.

Qin, Y., Ye, J., Ohno, P., Zhai, J., Han, Y., Liu, P., Wang, J., Zaveri, R. A., & Martin, S. T. (2021). Humidity Dependence of the Condensational Growth of α-Pinene Secondary Organic Aerosol Particles. Environmental Science & Technology, 55(21), 14360-14369.

Zhai, S., Wang, X., McConnell, J. R., Geng, L., Cole-Dai, J., Sigl, M., Chellman, N., Sherwen, T., Pound, R., Fujita, K., Hattori, S., Moch, J. M., Zhu, L., Evans, M., Legrand, M., Liu, P. , Pasteris, D. Chan, Y.-C., Murray, L. T., Alexander, B.: Anthropogenic impacts on tropospheric reactive chlorine since the preindustrial. Geophysical Research Letters, 48, e2021GL093808.

Zhang, B., Shen, H., Liu, P., Guo, H., Hu, Y., Chen, Y., Xie, S., Xi, Z., Skipper, T. N., & Russell, A. G. (2021). Significant contrasts in aerosol acidity between China and the United States. Atmos. Chem. Phys., 21(10), 8341-8356.

Liu, P.*, Kaplan, J. O., Mickley, L. J., Li, Y., Chellman, N. J., Arienzo, M. M., Kodros, J. K., Pierce, J. R., Sigl, M., Freitag, J., Mulvaney, R., Curran, M. A. J., & McConnell, J. R. Improved estimates of preindustrial biomass burning reduce the magnitude of aerosol climate forcing in the Southern Hemisphere. Science Advances, 7(22), eabc1379.

Gunthe, S.S.*, Liu, P.*, Panda, U., Raj, S.S., Sharma, A., Darbyshire, E., Reyes-Villegas, E., Allan, J., Chen, Y., Wang, X., Song, S., Pöhker, M.L., Shi, L., Wang, Y., Kommula, S.M.,, Ravikrishna, R., Ojha, N., McFiggans, G., Mickley, L.J., Martin, S.T., Pöschl, Andreae, M. O., U., Coe, H.: Enhanced Aerosol Particle Growth Sustained by High Continental Chlorine Emission in India, Nature Geoscience, 14, 77–84 (2021). (* Corresponding authors) [News & Views] [Behind the Paper] [Chemistry World]

Wang, J., Ye, J., Zhang, Q., Zhao, J., Wu, Y., Li, J., Liu, D., Li, W., Zhang, Y., Wu, C., Xie, C., Qin, Y., Lei, Y., Huang, X., Guo, J., Liu, P., Fu, P., Li, Y., Lee, H. C., Choi, H., Zhang, J., Liao, H., Chen, M., Sun, Y., Ge, X., Martin, S. T., and Jacob, D. J.: Aqueous production of secondary organic aerosol from fossil-fuel emissions in winter Beijing haze, Proceedings of the National Academy of Sciences, 118(8), e2022179118. [News Release]

Song, S., Ma, T., Zhang, Y., Shen, L., Liu, P., Li, K., Zhai, S., Zheng, H., Gao, M., Moch, J. M., Duan, F., He, K., & McElroy, M. B. (2021). Global modeling of heterogeneous hydroxymethanesulfonate chemistry. Atmos. Chem. Phys., 21(1), 457-481.

Liang, D., Shi, L., Zhao, J., Liu, P., Schwartz, J., Gao, S., Sarnat, J., Liu, Y., Ebelt, S., Scovronick, N. and Chang, H.H., 2020. Urban Air Pollution May Enhance COVID-19 Case-Fatality and Mortality Rates in the United States. the Innovation, Volume 1, Issue 3, 100047. link

Shi, L.; Wu, X.; Yazdi, M.; Braun, D.; Awad, Y.A.; Wei, Y.; Liu, P.; Di, Q.; Wang, Y.; Schwartz, J.; Dominici, F.; Kioumourtzoglou, M.A.; Zanobetti, A., Long-term Effects of Fine Particulate Matter on Neurological Disorders in the US Medicare Population: a nationwide analysis, Lancet Planetary Health, Volume 4, Issue 12, e557 – e565. link

Qin, Y.; Ye, J.; Ohno, P. E.; Lei, Y.; Wang, J.; Liu, P.; Thomson, R. J.; Martin, S. T., Synergistic Uptake by Acidic Sulfate Particles of Gaseous Mixtures of Glyoxal and Pinanediol. Environ. Sci. Technol. 2020.

Li, Y., Mickley, L. J., Liu, P., and Kaplan, J. O.: Trends and spatial shifts in lightning fires and smoke concentrations in response to 21st century climate over the national forests and parks of the western United States, Atmos. Chem. Phys., 20, 8827–8838,, 2020.

Wang, J., Li, J., Ye, J., Zhao, J., Wu, Y., Hu, J., Liu, D., Nie, D., Shen, F., Huang, X., Huang, D. D., Ji, D., Sun, X., Xu, W., Guo, J., Song, S., Qin, Y., Liu, P., Turner, J. R., Lee, H. C., Hwang, S., Liao, H., Martin, S. T., Zhang, Q., Chen, M., Sun, Y., Ge, X., Jacob, D. J., Fast sulfate formation from oxidation of SO2 by NO2 and HONO observed in Beijing haze. Nature Communications 2020, 11, (1), 2844.

Song, S., Nenes, A., Gao, M., Zhang, Y., Liu, P., Shao, J., Ye, D., Xu, W., Lei, L., Sun, Y. and Liu, B., 2019. Thermodynamic Modeling Suggests Declines in Water Uptake and Acidity of Inorganic Aerosols in Beijing Winter Haze Events during 2014/2015–2018/2019. Environmental Science & Technology Letters, 6(12), pp.752-760.

Han, Y., Gong, Z., Liu, P., de Sá, S. S., McKinney, K. A., & Martin, S. T.: Influence of Particle Surface Area Concentration on the Production of Organic Particulate Matter in a Continuously Mixed Flow Reactor. Environmental science & technology, 53(9), 4968-4976, 2019.

Han, Y., Gong, Z., Ye, J., Liu, P., McKinney, K.A. and Martin, S.T., 2019. Quantifying the Role of the Relative Humidity-Dependent Physical State of Organic Particulate Matter in the Uptake of Semivolatile Organic Molecules. Environmental Science & Technology, 53(22), pp.13209-13218.

Liu, P., Song, M., Zhao, T. N., Gunthe, S. S., Ham, S., He, Y. P., Qin, Y. M., Gong, Z. H., Amorim, J. C., Bertram, A. K., Martin, S. T.: Resolving the Mechanisms of Hygroscopic Growth and Cloud Condensation Nuclei Activity for Organic Particulate Matter, Nature Communications, 9, 4076, doi:10.1038/s41467-018-06622-2, 2018.

Liu, P., Li, Y. J., Wang, Y., Bateman, A. P., Zhang, Y., Gong, Z. H., Bertram, A. K., Martin, S. T.: Highly viscous states affect the browning of atmospheric organic particulate matter, ACS Central Science, 4(2), 207–215, 2018.

Zhang, Y., Liu, P., Gong, Z., Geiger, F. M., Martin, S. T.: Production and Measurement of Organic Particulate Matter in a Flow Tube Reactor. JoVE (Journal of Visualized Experiments), (142), e55684, 2018.

Gong, Z.; Han, Y.; Liu, P.; Ye, J.; Keutsch, F. N.; McKinney, K. A.; Martin, S. T., Influence of Particle Physical State on the Uptake of Medium-Sized Organic Molecules. Environ. Sci. Technol., 2018, 52 (15), 8381-8389.

Li, Y. J.; Liu, P.; Bergoend, C.; Bateman, A. P.; Martin, S. T., Rebounding hygroscopic inorganic aerosol particles: liquids, gels, and hydrates. Aerosol Sci. Tech., 51(3), 388-396, 2017.

Gray Be, A.; Upshur, M. A.; Liu, P.; Martin S. T.; Geiger, F; Thomson, R., Cloud activation potentials for atmospheric α-pinene and β-caryophyllene ozonolysis products. ACS Central Science, 3(7), 715-725, 2017.

Song, M., Liu, P., Martin, S. T., and Bertram, A. K.: Liquid-liquid phase separation in particles containing secondary organic material free of inorganic salts, Atmos. Chem. Phys., 17, 11261-11271, 2017.

Rastak, N., Pajunoja, A., Acosta Navarro, J. C., Ma, J., Song, M., Partridge, D. G., Kirkevåg, A., Leong, Y., Hu, W. W., Taylor, N. F., Lambe, A., Cerully, K., Bougiatioti, A., Liu, P., Krejci, R., Petäjä, T., Percival, C., Davidovits, P., Worsnop, D. R., Ekman, A. M. L., Nenes, A., Martin, S., Jimenez, J. L., Collins, D. R., Topping, D. O., Bertram, A. K., Zuend, A., Virtanen, A., and Riipinen, I.: Microphysical explanation of the RH-dependent water affinity of biogenic organic aerosol and its importance for climate, Geophys. Res. Lett., 10.1002/2017GL073056, 2017.

Wang, Y.; Lee, M; Liu, P.; Shi, L. H.; Yu, Z.; Awad, Y. A.; Zanobetti, A; Schwartz, J. D., Doubly robust additive hazards models to estimate effects of a continuous exposure on survival. Epidemiology, 28(6), 771-779, 2017.

Wang, Y.; Shi, L. H.; Lee, M; Liu, P.; Di, Q.; Zanobetti, A; Schwartz, J. D., Long-term exposure to PM2.5 and mortality among older adults in the Southeastern US. Epidemiology, 28(2), 207-214, 2017.

Liu, P., Li, Y. J., Wang, Y., Gilles, M. K., Zaveri, R. A., Bertram, A. K., and Martin, S. T.: Lability of secondary organic particulate matter, Proc. Natl. Acad. Sci. U.S.A., 113(45), 12643-12648, 2016.

Bateman, A. P., Gong, Z., Liu, P., Sato, B., Cirino, G., Zhang, Y., Artaxo, P., Bertram, A. K., Manzi, A. O., Rizzo, L. V., Souza, R. A. F., Zaveri, R. A., and Martin, S. T.: Sub-micrometre particulate matter is primarily in liquid form over Amazon rainforest, Nature Geosci, 9, 34-37, 2016.

Song, M.; Liu, P.; Hanna, S. J.; Zaveri, R. A.; Potter, K.; You, Y.; Martin, S. T.; Bertram, A. K., Relative humidity-dependent viscosity of secondary organic material from toluene photo-oxidation and possible implications for organic particulate matter over megacities. Atmos. Chem. Phys., 16, 8817-8830, 2016.

Renbaum-Wolff, L.; Song, M.; Marcolli, C.; Zhang, Y.; Liu, P.; Grayson, J. W.; Geiger, F. M.; Martin, S. T.; Bertram, A. K., Observations and implications of liquid–liquid phase separation at high relative humidities in secondary organic material produced by α-pinene ozonolysis without inorganic salts. Atmos. Chem. Phys., 16, 7969-7979, 2016.

*Shi, L. H., *Liu, P.; Kloog, I; Lee, M; Kosheleva, A; Schwartz, J. D., Estimating daily air temperature across the Southeastern USA using high-resolution satellite data: A statistical modeling study. Environ. Res., 146, 51-58, 2016. (*contributed equally)

Shi, L. H.; Liu, P.; Zanebetti, A; Kosheleva, A; Schwartz, J. D., Chronic effects of temperature on mortality in the Southeastern USA using satellite-based exposure metrics, Scientific Reports, 6, 30161, 2016.

Liu, P., Abdelmalki, N., Hung, H. M., Wang, Y., Brune, W. H., and Martin, S. T.: Ultraviolet and visible complex refractive indices of secondary organic material produced by photooxidation of the aromatic compounds toluene and m-xylene, Atmos. Chem. Phys., 15, 1435-1446, 2015.

Shi, L., Kloog, I., Zanobetti, A., Liu, P., and Schwartz, J. D.: Impacts of temperature and its variability on mortality in New England, Nature Climate Change, 5, 988-991, 2015.

Li, Y. J.; Liu, P.; Gong, Z.; Wang, Y.; Bateman, A. P.; Bergoend, C.; Martin, S. T., Chemical reactivity and liquid/non-liquid states of secondary organic material. Environ. Sci. Technol., 49(22), 13264-13274, 2015.

Song, M.; Liu, P.; Hanna, S. J.; Li, Y. J.; Martin, S. T.; Bertram, A. K., Relative humidity-dependent viscosities of isoprene-derived secondary organic material and atmospheric implications for isoprene-dominant forests. Atmos. Chem. Phys., 15, (9), 5145-5159, 2015.

Zhang, Y.; Sanchez, M. S.; Douet, C.; Wang, Y.; Bateman, A. P.; Gong, Z.; Kuwata, M.; Renbaum-Wolff, L.; Sato, B. B.; Liu, P.; Bertram, A. K.; Geiger, F. M.; Martin, S. T., Changing shapes and implied viscosities of suspended submicron particles. Atmos. Chem. Phys., 15, (14), 7819-7829, 2015.

Shrestha, M.; Zhang, Y.; Upshur, M. A.; Liu, P.; Blair, S. L.; Wang, H.-F.; Nizkorodov, S. A.; Thomson, R. J.; Martin, S. T.; Geiger, F. M., On surface order and disorder of α-pinene-derived secondary organic material. J. Phys. Chem. A,, 119, (19), 4609-4617, 2015.

2014 and Earlier
Tao, J. C.; Zhao, C. S.; Ma, N.; Liu, P., The impact of aerosol hygroscopic growth on the single-scattering albedo and its application on the NO2 photolysis rate coefficient. Atmos. Chem. Phys., 14, (22), 12055-12067, 2014.

Liu, P., Zhang, Y., and Martin, S. T.: Complex refractive indices of thin films of secondary organic materials by spectroscopic ellipsometry from 220 to 1200 nm, Environ. Sci. Technol., 47, 13594-13601, 2013.

Xu, W. Y.; Zhao, C. S.; Ran, L.; Deng, Z. Z.; Ma, N.; Liu, P.; Lin, W. L.; Yan, P.; Xu, X. B., A new approach to estimate pollutant emissions based on trajectory modeling and its application in the North China Plain. Atmos. Environ., 71, (0), 75-83, 2013.

Wang, J.; Mao, J.; Zhao, C.; Yan, P.; Ma, N.; Liu, P.; Liu, X., A novel four-wavelength transmissometer for distinguishing haze and fog. Acta Meteorologica Sinica, 27, (4), 556-565, 2013.

Chen, J.; Zhao, C. S.; Ma, N.; Liu, P.; Göbel, T.; Hallbauer, E.; Deng, Z. Z.; Ran, L.; Xu, W. Y.; Liang, Z.; Liu, H. J.; Yan, P.; Zhou, X. J.; Wiedensohler, A., A parameterization of low visibilities for hazy days in the North China Plain. Atmos. Chem. Phys., 12, (11), 4935-4950, 2012.

Ma, N.; Zhao, C. S.; Müller, T.; Cheng, Y. F.; Liu, P.; Deng, Z. Z.; Xu, W. Y.; Ran, L.; Nekat, B.; van Pinxteren, D.; Gnauk, T.; Müller, K.; Herrmann, H.; Yan, P.; Zhou, X. J.; Wiedensohler, A., A new method to determine the mixing state of light absorbing carbonaceous using the measured aerosol optical properties and number size distributions. Atmos. Chem. Phys., 12, (5), 2381-2397, 2012.

Ma, N.; Zhao, C. S.; Nowak, A.; Müller, T.; Pfeifer, S.; Cheng, Y. F.; Deng, Z. Z.; Liu, P.; Xu, W. Y.; Ran, L.; Yan, P.; Göbel, T.; Hallbauer, E.; Mildenberger, K.; Henning, S.; Yu, J.; Chen, L. L.; Zhou, X. J.; Stratmann, F.; Wiedensohler, A., Aerosol optical properties in the North China Plain during HaChi campaign: an in-situ optical closure study. Atmos. Chem. Phys., 11, (12), 5959-5973, 2011.

Ran, L.; Zhao, C. S.; Xu, W. Y.; Lu, X. Q.; Han, M.; Lin, W. L.; Yan, P.; Xu, X. B.; Deng, Z. Z.; Ma, N.; Liu, P.; Yu, J.; Liang, W. D.; Chen, L. L., VOC reactivity and its effect on ozone production during the HaChi summer campaign. Atmos. Chem. Phys., 11, (10), 4657-4667, 2011.

Xu, W. Y.; Zhao, C. S.; Ran, L.; Deng, Z. Z.; Liu, P.; Ma, N.; Lin, W. L.; Xu, X. B.; Yan, P.; He, X.; Yu, J.; Liang, W. D.; Chen, L. L., Characteristics of pollutants and their correlation to meteorological conditions at a suburban site in the North China Plain. Atmos. Chem. Phys., 11, (9), 4353-4369, 2011.

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