| 沙尘天气对榆林市环境空气质量的影响 |
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| 引用本文： | 崔娟,王浩,刘杰,王越,卢立栋,陈洁.沙尘天气对榆林市环境空气质量的影响[J].中国沙漠,2021,41(2):59-66. |
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| 作者姓名： | 崔娟 王浩 刘杰 王越 卢立栋 陈洁 |
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| 作者单位： | 1.陕西省环境科学研究院，陕西 西安 710061;2.陕西省气象局 气候中心，陕西 西安 710014 |
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| 基金项目： | 国家重点研发计划项目(2017YFC0212206);陕西省重点研发计划项目(2018ZDCXL-SF-02-05)。 |
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| 摘 要： | 基于2013—2018年榆林市沙尘天气和环境空气质量逐日数据，定量分析了沙尘天气对榆林市空气质量指数（AQI）、可吸入颗粒物（PM10）和细颗粒物（PM2.5）的绝对贡献和相对贡献率。结果表明：沙尘天气对榆林市AQI的贡献率为0.7%—11.1%（平均值±标准差6.4%±3.8%）；对PM10的绝对贡献为1.0—13.1 μg·m-3（平均8.2±5.4 μg·m-3），相对贡献率5.4%±3.5%；对PM2.5的绝对贡献为-0.4—3.5 μg·m-3，沙尘天气对PM2.5的影响小于对PM10。沙尘天气对榆林市空气质量的影响季节差异很大，春季贡献最大，秋冬季贡献较小。沙尘天气对榆林市区和郊区的影响程度不同，这可能与局部气象条件和地形条件等因素有关。
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| 关 键 词： | 沙尘天气 空气质量指数 可吸入颗粒物 细颗粒物 |
| 收稿时间： | 2020-10-09 |
| 修稿时间： | 2020-12-13 |
Characteristics of dust events and their influence on air quality of Yulin,Shaanxi,China |
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| Cui Juan,Wang Hao,Liu Jie,Wang Yue,Lu Lidong,Chen Jie.Characteristics of dust events and their influence on air quality of Yulin,Shaanxi,China[J].Journal of Desert Research,2021,41(2):59-66. |
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| Authors: | Cui Juan Wang Hao Liu Jie Wang Yue Lu Lidong Chen Jie |
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| Institution: | 1.Shaanxi Provincial Academy of Environmental Science，Xi’an 710061，China;2.Climate Center of Shaanxi Meteorological Bureau，Xi’an 710014，China |
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| Abstract: | Few studies were concerned in the quantitative influence of dust events on air quality of Yulin,China.Based on daily dust event and air quality data from 2013 to 2018,the relative and the absolute contributions of dust events were analyzed,on the air quality index(AQI),inhalable particles(PM10),and fine particles(PM2.5)concentrations.The results showed that the contribution rate of dust events on AQI were in the range of 0.7%-11.1%(annual average:6.4%±3.8%).The absolute contribution of dust events on PM10 was within the scope of 1.0-13.1μg·m-3,and the annual average was 8.2±5.4μg·m-3,corresponding to 5.4%±3.5%of the relative contribution.The impact of dust events on PM2.5 was smaller than that on PM10,with the absolute contribution ranged from-0.4 to 3.5μg·m-3.The seasonal variation of dust events on air quality of Yulin was significant,with the bigger contribution in spring,and smaller in autumn and winter.The impacts of dust events in urban and outskirts areas were different,maybe related to local meteorological and topographical conditions. |
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| Keywords: | dust events air quality index inhalable particles fine particles |
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