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Distribution Characteristics and Impact Factors of the Haze Weather in Changsha Area

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Abstract:

Based on meteorological observation data and environmental monitoring data of Changsha in the period from 1970 to 2012, this paper analyzes the distribution characteristics and import factors of the haze weather in Changsha. The results show that in the recent forty-three years, haze in Changsha is on the rise as a whole, and the haze weather mainly concentrates in autumn and winter. During the occurrence of the haze weather, the annual sunshine durations and the annual mean temperature are positively correlated with the haze weather, the annual precipitation is negatively correlated with the haze weather, and the concentration of PM2.5 is significantly positively correlated with the occurrence of the haze weather, with the correlation coefficient of 0.893, indicating that PM2.5 is the primary factor for the haze weather. Therefore, the control of PM2.5 will be the key in reducing the haze pollution and improving the ambient air quality.

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Periodical:

Advanced Materials Research (Volumes 1010-1012)

Pages:

478-483

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1010-1012.478

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Online since:

August 2014

Authors:

Xiao Hong Zhang, Lian Ye Liu, Xi Hong Chen

Keywords:

Distribution Characteristics, Haze, Impact Factors

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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