| 宝鸡城郊灰霾与非灰霾天大气颗粒物中水溶性无机离子的粒径分布特征及区域传输 |
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| 引用本文： | 周变红,武洋洋,刘雅雯,张容端,曹夏,闫昕,张欢,赵阿玲,史利辉.宝鸡城郊灰霾与非灰霾天大气颗粒物中水溶性无机离子的粒径分布特征及区域传输[J].环境化学,2019(3):565-571. |
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| 作者姓名： | 周变红 武洋洋 刘雅雯 张容端 曹夏 闫昕 张欢 赵阿玲 史利辉 |
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| 作者单位： | 宝鸡文理学院地理与环境学院陕西省灾害监测与机理模拟重点实验室;中国科学院地球环境研究所中国科学院气溶胶化学物理重点实验室;陕西省扶风县国土资源局;陕西省咸阳市道北中学;陕西省扶风县农业局 |
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| 基金项目： | 陕西省科技厅项目(2018ZDCXL-SF-02-04);中国科学院气溶胶化学物理重点实验室项目(KLACP1903);宝鸡文理学院重点项目(ZK2017038;ZK2018049);宝鸡文理学院大学生创新创业训练计划项目(2015dc47;2017dc001);国家级大学生创新创业计划项目(201810721012);陕西省大学生创新创业训练计划项目(2085;201610721049;201827012;201827033);陕西省重点学科自然地理学联合资助~~ |
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| 摘 要： | 本文采用安德森大气颗粒物分级采样器分别采集了宝鸡城郊灰霾天和非灰霾天的大气颗粒物,利用离子色谱仪进行水溶性无机离子组分的分析,探讨了宝鸡城郊大气颗粒物中离子组分的粒径分布特征;结合风向及气团后向轨迹,分析了大气污染物的区域传输对宝鸡大气颗粒物的影响.结果显示,灰霾天城区昼夜的颗粒物污染程度重于郊区,非灰霾天相反.宝鸡城郊灰霾天细粒子(PM2.1)污染严重,城区高于郊区;总水溶性离子(TWSIs)对灰霾天颗粒物质量浓度的贡献率高于非灰霾天;城郊灰霾天昼夜二次离子(SNA)浓度均高于非灰霾天;灰霾天城区夜间是二次离子的重污染时段,二次离子中NO^-_3的浓度最高.城郊灰霾天昼夜Ca2+的浓度均低于非灰霾天.二次离子均呈双峰分布,主峰值均在细粒子中(0.43—1.1μm粒径段),属于液滴模态.K^+呈双峰分布,峰值分别在0.65—1.1μm和2.1—10.0μm粒径段,K^+的粗细粒径分布在城郊昼夜存在着一定关联的转化.灰霾天和非灰霾天Ca2+的粒径分布均呈单峰分布,峰值在4.7—5.8μm粒径段.灰霾天宝鸡东部地区污染物自东向西的区域传输是宝鸡重污染发生的重要条件.
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| 关 键 词： | 灰霾天与非灰霾天 水溶性离子 粒径分布 区域传输 宝鸡城郊 |
Particle size distribution and regional transport of water soluble inorganic ions in atmospheric particulates in the haze and non-haze days in the urban and suburban areas of Baoji,China |
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| ZHOU Bianhong,WU Yangyang,LIU Yawen,ZHANG Rongduan,CAO Xia,YAN Xin,ZHANG Huan,ZHAO Aling,SHI Lihui.Particle size distribution and regional transport of water soluble inorganic ions in atmospheric particulates in the haze and non-haze days in the urban and suburban areas of Baoji,China[J].Environmental Chemistry,2019(3):565-571. |
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| Authors: | ZHOU Bianhong WU Yangyang LIU Yawen ZHANG Rongduan CAO Xia YAN Xin ZHANG Huan ZHAO Aling SHI Lihui |
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| Institution: | (Baoji University of Arts and Sciences,Shaanxi Key Laboratory of Disaster Monitoring and Mechanism Simulation,Baoji,721013,China;Key Laboratory of Aerosol Chemistry and Physics,Institute of Earth Environment,Institute of Earth Environment,Chinese Academy of Sciences,Xi'an,710061,China;Land and Resources Bureau of Fufeng County,Baoji,722200,China;Xianyang Daobei Middle School,Xianyang,712000,China;Agricultural Bureau of Fufeng County,Baoji,722200,China) |
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| Abstract: | ZHOU Bianhong;WU Yangyang;LIU Yawen;ZHANG Rongduan;CAO Xia;YAN Xin;ZHANG Huan;ZHAO Aling;SHI Lihui(Baoji University of Arts and Sciences,Shaanxi Key Laboratory of Disaster Monitoring and Mechanism Simulation,Baoji,721013,China;Key Laboratory of Aerosol Chemistry and Physics,Institute of Earth Environment,Institute of Earth Environment,Chinese Academy of Sciences,Xi'an,710061,China;Land and Resources Bureau of Fufeng County,Baoji,722200,China;Xianyang Daobei Middle School,Xianyang,712000,China;Agricultural Bureau of Fufeng County,Baoji,722200,China) |
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| Keywords: | haze and non-haze days water soluble inorganic ions particle size distribution regional transport urban and suburban areas of Baoji |
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