On mineral dust aerosol hygroscopicity

doi:10.5194/acp-2020-442

GSTDTAP > 地球科学

DOI	10.5194/acp-2020-442
	On mineral dust aerosol hygroscopicity
	Lanxiadi Chen, Chao Peng, Athanasios Nenes, Wenjun Gu, Hanjing Fu, Xing Jian, Huanhuan Zhang, Guohua Zhang, Jianxi Zhu, Xinming Wang, and Mingjin Tang
	2020-05-25
发表期刊	Atmospheric Chemistry and Physics
出版年	2020
英文摘要	Despite its importance, hygroscopicity of mineral dust aerosol remains highly uncertain. In this work, we investigated water adsorption and hygroscopicity of different mineral dust samples at 25 °C, via measuring sample mass at different relative humidity (RH, up to 90 %) using a very sensitive balance. Mineral dust samples examined (twenty one in total) included seven authentic mineral dust samples from different regions in the world and fourteen major minerals contained in mineral dust aerosol. At 90 % RH, mass ratios of adsorbed water to the dry mineral ranged from 0.0011 to 0.3080, largely depending on the BET surface areas of mineral dust samples. The surface coverages of adsorbed water were determined to vary between 1.26 and 8.63 at 90 % RH, and it was found that the Frenkel-Halsey-Hill (FHH) adsorption isotherm could well describe surface coverages of adsorbed water as a function of RH, with AFHH and BFHH parameters in the range of 0.15–4.39 and 1.10–1.91, respectively. The comprehensive and robust data obtained would largely improve our knowledge of hygroscopicity of mineral dust aerosol.
领域	地球科学
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文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/271655
专题	地球科学
推荐引用方式 GB/T 7714	Lanxiadi Chen, Chao Peng, Athanasios Nenes, Wenjun Gu, Hanjing Fu, Xing Jian, Huanhuan Zhang, Guohua Zhang, Jianxi Zhu, Xinming Wang, and Mingjin Tang. On mineral dust aerosol hygroscopicity[J]. Atmospheric Chemistry and Physics,2020.
APA	Lanxiadi Chen, Chao Peng, Athanasios Nenes, Wenjun Gu, Hanjing Fu, Xing Jian, Huanhuan Zhang, Guohua Zhang, Jianxi Zhu, Xinming Wang, and Mingjin Tang.(2020).On mineral dust aerosol hygroscopicity.Atmospheric Chemistry and Physics.
MLA	Lanxiadi Chen, Chao Peng, Athanasios Nenes, Wenjun Gu, Hanjing Fu, Xing Jian, Huanhuan Zhang, Guohua Zhang, Jianxi Zhu, Xinming Wang, and Mingjin Tang."On mineral dust aerosol hygroscopicity".Atmospheric Chemistry and Physics (2020).