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首页> 中文期刊> 《地球科学和环境保护期刊（英文）》 >Variation Characteristics of Mass Concentration of Inhalable Particles in Qingdao, China

Variation Characteristics of Mass Concentration of Inhalable Particles in Qingdao, China

         
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摘要

The geographical condition of Qingdao, China is relatively special;the transport of various inland pollutants, the emissions of marine aerosol and local pollutants will have an impact on the changes of atmospheric aerosol concentration. By using the stability classification method, trajectory clustering analysis and the NOAA HYSPLIT model, the seasonal distribution characteristics of atmospheric inhalable particulate matter concentration in Qingdao, China and its relationship with meteorological conditions, mixed layer height, and the seasonal characteristics of Qingdao pollutant transport were analyzed. The results show that the variation trends of PM2.5 and PM10 were about the same, and there are obvious seasonal differences, which are high in winter and spring, and low in summer and autumn. The concentration of inhalable particulate matter has a negative correlation with temperature, wind speed and relative humidity. The concentration of inhalable particulate matter is distinct in different relative humidity ranges. When the wind speed is less than 3 - 4 m/s, there are more inhalable particles, while the mass concentration shows obvious reduction with the wind speed more than 4 m/s. There is a significant negative correlation between the mass concentration of pollutants and the daily maximum mixed layer height. The larger the concentration of pollutants, the smaller the thickness of the daily largest mixed layer. Conversely, the smaller the mass concentration of pollutants, the larger the thickness of the daily largest mixed layer. The pollutant transport in Qingdao has obvious seasonal characteristics. The air mass in spring, autumn and winter is mainly medium-long distance transport from Mongolia and southern Russia, and medium-short distance transport from Inner Mongolia and northeast of China. The source of air masses in summer is mainly transported from the eastern and sea areas.

著录项

  • 来源
    《地球科学和环境保护期刊（英文）》 |2020年第10期|P.192-201|共10页
  • 作者

    Zhixuan Wang; Xiaomeng Shi; Yan Ma; Xiaomin Wei;

  • 作者单位

    Physical Oceanography Laboratory Ocean-Atmosphere Interaction and Climate Laboratory Ocean University of China Qingdao China;

    Qingdao Engineering Technology Research Center for Meteorological Disaster Prevention Qingdao ChinaQingdao Meteorological Observatory Qingdao Meteorological Bureau Qingdao China;

    Qingdao Engineering Technology Research Center for Meteorological Disaster Prevention Qingdao ChinaQingdao Meteorological Observatory Qingdao Meteorological Bureau Qingdao China;

    Physical Oceanography Laboratory Ocean-Atmosphere Interaction and Climate Laboratory Ocean University of China Qingdao China;

  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 大气污染及其防治;
  • 关键词

    Variation Characteristics; Mass Concentration; Inhalable Particles; Qingdao;

    机译：变化特征;质量浓度;可吸入颗粒物;青岛;
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