Variation Characteristics of PM₁₀ Mass Concentrations and Correlations with Meteorological Factors in Xingtai City

Abstract:

Based on monitoring data of air pollution index (API) and meteorological data from January 2009 to December 2012 in Xingtai, the variation characteristics of PM₁₀ mass concentration were analyzed and the relationships between PM₁₀ mass concentration and air pressure, wind speed, temperature, vapor pressure, relative humid and sunshine duration were investigated for four seasons using SPSS software. The results showed that the PM₁₀ mass concentration was 86.5, 83.3, 85.0 and 80.4 μg m^­3, and the differences were not obvious tending to be a weak downward trend from 2009 to 2012. The percentage of the excellent and good air quality was high during the period and the mild and light pollution mainly appeared in December. The PM₁₀ mass concentration showed significant seasonal variations with a higher value in winter and fall and a lower value in spring and summer. The relationship between PM₁₀ mass concentration and meteorological factors showed some differences in different seasons. The PM₁₀ mass concentration had negative correlation with air pressure and sunshine duration and positive correlation with vapor pressure, temperature and wind speed in spring. The PM₁₀ mass concentration was negatively correlated with air pressure and sunshine duration, but positively correlated with vapor pressure and temperature in summer. The PM₁₀ mass concentration was negatively correlated with temperature, wind speed, vapor pressure and sunshine duration in fall. The PM₁₀ mass concentration had negative correlation with wind speed, sunshine duration and air pressure and positive correlation with vapor pressure and relative humidity in winter.

• Periodical: Advanced Materials Research (Volumes 807-809)
• Pages: 73-76
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.807-809.73
• Online since: September 2013
• Authors: Jian Wang, Mei Xu, Xia Ye, Wei Liu
• Keywords: Air Pollution Index, Meteorological Factors, PM₁₀, Variation Characteristics, Xingtai

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