高级搜索

城市森林大气PM2.5中水溶性无机离子沉降特征

,  ,  ,  ,  ,  ,  , 

downloadPDF

上一篇

下一篇

莫莉, 郑文革, 李仁娜, 李丹, 邸林栓, 李小勇, 伦小秀, 马伟芳. 城市森林大气PM2.5中水溶性无机离子沉降特征[J]. 环境化学, 2021, (3): 746-753. doi: 10.7524/j.issn.0254-6108.2019102903
引用本文: 莫莉, 郑文革, 李仁娜, 李丹, 邸林栓, 李小勇, 伦小秀, 马伟芳. 城市森林大气PM2.5中水溶性无机离子沉降特征[J]. 环境化学, 2021, (3): 746-753. doi: 10.7524/j.issn.0254-6108.2019102903
shu
MO Li, ZHENG Wenge, LI Renna, LI Dan, DI Linshuan, LI Xiaoyong, LUN Xiaoxiu, MA Weifang. Dry deposition of water-soluble inorganic ions in PM2.5 above urban forest[J]. Environmental Chemistry, 2021, (3): 746-753. doi: 10.7524/j.issn.0254-6108.2019102903
Citation: MO Li, ZHENG Wenge, LI Renna, LI Dan, DI Linshuan, LI Xiaoyong, LUN Xiaoxiu, MA Weifang. Dry deposition of water-soluble inorganic ions in PM2.5 above urban forest[J]. Environmental Chemistry, 2021, (3): 746-753. doi: 10.7524/j.issn.0254-6108.2019102903
shu

城市森林大气PM2.5中水溶性无机离子沉降特征

  • 1. 北京林业大学水土保持学院, 北京, 100083;

  • 2. 北京市水土保持工作总站, 北京, 100036;

  • 3. 北京林业大学环境科学与工程学院, 北京, 100083;

  • 4. 北京林业大学经济管理学院, 北京, 100083;

  • 5. 生态环境部土壤与农业农村生态环境监管技术中心, 北京, 100012

    • 通讯作者: 李小勇, E-mail: leexymarket@126.com ;  伦小秀, E-mail: lunxiaoxiu@bjfu.edu.cn ; 
  • 基金项目:

    北京市科技项目（Z181100005318003，Z201100008220013）和国家自然科学基金（42077454）资助.

Dry deposition of water-soluble inorganic ions in PM2.5 above urban forest

  • 1. School of Soil and Water Conservation, Beijing Forestry University, Beijing, 100083, China;

  • 2. Beijing Water and Soil Conservation Work Station, Beijing, 100036, China;

  • 3. College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China;

  • 4. The School of Economics and Management, Beijing Forestry University, Beijing, 100083, China;

  • 5. Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing, 100012, China

    • Corresponding authors: LI Xiaoyong, leexymarket@126.com ;  LUN Xiaoxiu, lunxiaoxiu@bjfu.edu.cn ; 
  • Fund Project: Suported by the Beijing Municipal Science and Technology Project (Z181100005318003, Z201100008220013) and National Natural Science Foundation of China(42077454).

  • 摘要: 森林被誉为"地球之肺"，在防霾治污方面有其独特不可替代的作用，不同树种沉降PM2.5的功能有很大差别.本文选取代表性城市森林——奥林匹克森林公园为研究对象，设置垂直监测塔观测大气PM2.5的浓度垂直分布，以考察不同季节城市森林对PM2.5中各组分的影响.在冬季、春季和夏季各采集PM2.5样品，分析并计算PM2.5中Na+、NH4+、K+、Mg2+、Ca2+、Cl-、NO3-和SO42-等典型水溶性无机离子的浓度.结果表明，PM2.5中水溶性无机离子总浓度呈规律性变化特征：冬季（（56.90±27.38）μg·m-3） > 春季（（46.69±12.24）μg·m-3） > 夏季（（23.16±8.75）μg·m-3）.其中SO42-和NO3-浓度和占PM2.5主要水溶性无机离子总浓度的50%以上.3个季节中，除冬季外，在春季和夏季，8种离子有明显的垂直方向上的沉降，夏季的沉降速率高于春季，但是春季由于大气颗粒物浓度高，沉降通量高于夏季.NO3-和SO42-垂直方向的沉降量在所有可溶性无机离子中最高.植被密度、叶面积指数、气象条件等因素对于PM2.5的沉降特征有明显影响.
    Abstract: As the "lung of the earth", forests play a unique and irreplaceable role in haze prevention and pollution control. Different tree species have different functions in settling PM2.5. In this paper, Olympic Forest Park, a representative urban forest, was selected as the research object, and a vertical monitoring tower was set up to observe the vertical distribution of atmospheric PM2.5 concentration, so as to investigate the impact of urban forests in different seasons on the components of PM2.5. The PM2.5 samples were collected in winter, spring and summer, and the concentrations of typical water-soluble inorganic ions such as Na+, NH4+, K+, Mg2+, Ca2+, Cl-, NO3- and SO42- in PM2.5 were analyzed and calculated. The results showed that the total concentration of water-soluble inorganic ions in PM2.5 showed regular changes:((56.90±27.38) μg·m-3) > in winter ((46.69±12.24) μg·m-3) > in summer ((23.16±8.75) μg·m-3). The concentration of SO42- and NO3- accounted for more than 50% of the total concentration of major water-soluble inorganic ions in PM2.5. In the three seasons, except for winter, 8 kinds of ions had obvious vertical deposition in spring and summer. The deposition rate in summer was higher than that in spring, but the precipitation flux in spring was higher than that in summer due to the high concentration of atmospheric particles. The vertical deposition of NO3- and SO42- was the highest among all soluble inorganic ions. Vegetation density, leaf area index (LAI), meteorological conditions and other factors have a significant impact on the dry deposition characteristics of PM2.5.
  • 加载中
  • [1] 王跃思, 李文杰, 高文康,等. 2013-2017年中国重点区域颗粒物质量浓度和化学成分变化趋势[J]. 中国科学:地球科学, 2020,50:453-468. WANG Y S, LI W J, GAO W K, et al. Trends in particulate matter and its chemical compositions in China from 2013

    -2017[J]. Science China Earth Sciences, 2019,62:1857-1871.

    [2] 宋明,韩素芹,张敏,等.天津大气能见度与相对湿度和PM10及PM2.5的关系[J].气象与环境学报, 2013,29(2):34-41.

    SONG M, HAN S Q, ZHANG M, et al. Relationship between visibility and relative humidity,PM10,PM2.5 in Tianjin[J].Journal of Meteorology and Environment,2013,29(2):34-41(in Chinese).

    [3] 李辉,郭家秀,尹华强. PM2.5对人体健康的影响研究进展[J].四川化工, 2013, 16(1):52-54.

    LI H, GUO J X, YING H Q. Research progress of PM2.5 effects on human health[J].Sichuan Chemical Industry, 2013, 16(1):52-54(in Chinese).

    [4] LEE Y L, SEQU R, Water-soluble aerosol and visibility degradation in Hong Kong during autumn and early winter, 1998[J]. Environmental Pollution, 2002,116:225-233.
    [5] 余学春,贺克斌,马永亮,等.气溶胶水溶性无机物及有机物的离子色谱测定[J]. 环境化学, 2004, 23(2):218-222.

    YU X C, HE K B, MA Y L, et al. Determination of water-soluble inorganic and organic species of aerosols[J].Environmental Chemistry,2004, 23(2):218-222(in Chinese).

    [6] 曹莹莹,余新晓,李仁娜,等.城市森林大气PM2.5中水溶性无机离子的观测[J].环境化学, 2014, 33(8):1416-1417.

    CAO Y Y, YU X X,LI R N, et al. The observation of water-soluble inorganic ions in PM2.5 in urban forest[J].Environmental Chemistry,2014, 33(8):1416-1417(in Chinese).

    [7] 赵晨曦,王云琦,王玉杰,等.北京地区冬春PM2.5和PM10污染水平时空分布及其与气象条件的关系[J].环境科学,2014, 35(2):418-427.

    ZHAO C X, WANG Y Q, WANG Y J, et al. Temporal and spatial distribution of PM2.5 and PM10pollution status and the correlation of particulate matters and meteorological factors during winter and spring in Beijing[J].Environmental Science,2014, 35(2):418-427(in Chinese).

    [8] 王丽.京津冀典型城市大气颗粒物中水溶性无机离子特征研究[D].北京:北京化工大学, 2012. WANG L. Characteristic of water-soluble inorganic ions in aerosol particles in JingJinJi-Mega typical cites[D].Beijing:Beijing University of Chemical Technology,2012(in Chinese).
    [9] RUIJGROK W, TIEBEN H, EISINGA P. The dry deposition of particles to a forest canopy:a comparison of model and experimental results[J]. Atmospheric Environrnent,1997,31:399-415.
    [10] MATSUDA K, FUKUZAKI N, MAEDA M. A case study on estimation of dry deposition of sulfur and nitrogen compound by inferential method[J]. Water Air Soil Pollution,2002,130:553-558.
    [11] 张小曳, 徐祥德, 丁一汇, 等. 2013-2017年气象条件变化对中国重点地区PM2.5质量浓度下降的影响[J]. 中国科学:地球科学, 2020,50:483-500. ZHANG X Y, XU X D, DING Y H, et al. The impact of meteorological changes from 2013

    to 2017 on PM2.5 mass reduction in key regions in China[J]. Science China Earth Sciences, 2019,62:1885-1902.

    [12] 赵晨曦,王玉杰,王云琦,等.细颗粒物(PM2.5)与植被关系的研究综述[J].生态学杂志, 2013, 32(8):2203-2210.

    ZHAO C X, WANG Y J, WANG Y Q, et al. Interactions between fine particulate matter(PM2.5) and vegetation:A review[J].Chinese Journal of Ecology, 2013,32(8):2203-2210(in Chinese).

    [13] MATSUDA K, FUJIMURA Y, HAYASHI K, et al. Deposition velocity of PM2.5 sulfate in the summer above a deciduous forest in central Japan[J]. Atmospheric Environment,2010, 44:4582-4587.
    [14] FELICIANO M S, PIO C A, VERMEULEN A T. Evaluation of SO2 dry deposition over short vegetation in Portugal[J]. Atmospheric Environment,2001,35:3633-3643.
    [15] XIE X M, WANG J S, HUANG Z, et al. Traffic emission transportation in street canyon[J]. Journal of Hydrodynamics B, 2009, 21(1):108-117.
    [16] 陈云进,王劲.基于监测统计的昆明PM2.5主要来源与污染气象因素分析[J]. 环境科学导刊, 2015, 34(1):37-44.

    CHEN Y J, WANG J. Analysis of pollution meteorology and the major sources of PM2.5 based on monitoring statistic datain Kunming City[J].Environmental Science Guide,2015, 34(1):37-44(in Chinese).

    [17] 贲继东.长春市空气污染状况与气象条件相关性分析[D].长春:吉林大学, 2012. FENG J D. The Correlation analysis between the air pollution status and meteorological conditions in Changchun[D].Changchun:Jilin University,2012(in Chinese).
    [18] KANG C M, LEE H S, KANG B W, et al. Chemical characteristics of acidic gas pollutants and PM2.5 species during hazy episodes in Seoul, South Korea[J]. Atmospheric Environment, 2004, 38:4749-4760.
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  1830
  • HTML全文浏览数:  1830
  • PDF下载数:  29
  • 施引文献:  0
出版历程
  • 收稿日期:  2019-10-29

城市森林大气PM2.5中水溶性无机离子沉降特征

    通讯作者: 李小勇, E-mail: leexymarket@126.com ;  伦小秀, E-mail: lunxiaoxiu@bjfu.edu.cn ; 
  • 1. 北京林业大学水土保持学院, 北京, 100083;
  • 2. 北京市水土保持工作总站, 北京, 100036;
  • 3. 北京林业大学环境科学与工程学院, 北京, 100083;
  • 4. 北京林业大学经济管理学院, 北京, 100083;
  • 5. 生态环境部土壤与农业农村生态环境监管技术中心, 北京, 100012
  • 收稿日期:  2019-10-29
基金项目:

北京市科技项目（Z181100005318003，Z201100008220013）和国家自然科学基金（42077454）资助.

摘要: 森林被誉为"地球之肺"，在防霾治污方面有其独特不可替代的作用，不同树种沉降PM2.5的功能有很大差别.本文选取代表性城市森林——奥林匹克森林公园为研究对象，设置垂直监测塔观测大气PM2.5的浓度垂直分布，以考察不同季节城市森林对PM2.5中各组分的影响.在冬季、春季和夏季各采集PM2.5样品，分析并计算PM2.5中Na+、NH4+、K+、Mg2+、Ca2+、Cl-、NO3-和SO42-等典型水溶性无机离子的浓度.结果表明，PM2.5中水溶性无机离子总浓度呈规律性变化特征：冬季（（56.90±27.38）μg·m-3） > 春季（（46.69±12.24）μg·m-3） > 夏季（（23.16±8.75）μg·m-3）.其中SO42-和NO3-浓度和占PM2.5主要水溶性无机离子总浓度的50%以上.3个季节中，除冬季外，在春季和夏季，8种离子有明显的垂直方向上的沉降，夏季的沉降速率高于春季，但是春季由于大气颗粒物浓度高，沉降通量高于夏季.NO3-和SO42-垂直方向的沉降量在所有可溶性无机离子中最高.植被密度、叶面积指数、气象条件等因素对于PM2.5的沉降特征有明显影响.

English Abstract

    全文HTML

参考文献 (18)

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心