淮南市不同功能区大气PM_(2.5)的化学组分季节分布及其来源解析  

Seasonal Distribution and Sources Analysis of Chemical Components of Atmospheric PM_(2.5) in Different Functional Areas of Huainan City

作　　者：张婧伟 杜诗文[1] 周雪明 王晴晴 左栋 杨雨灵 覃园园 秦娟娟 杨艳蓉 石绍萱 谭吉华 彭思怡 ZHANG Jingwei;DU Shiwen;ZHOU Xueming;WANG Qingqing;ZUO Dong;YANG Yuling;QIN Yuanyuan;QIN Juanjuan;YANG Yanrong;SHI Shaoxuan;TAN Jihua;PENG Siyi(School of Materials Science and Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China;Institute of Atmospheric Physics,Chinese Academy of Sciences 9Beijing 100029,China;School of Resources and Environment,University of Chinese Academy of Sciences,Beijing 100049,China;Zhong Ke Shu Yuan Technology Company,Beijing 100049,China)

机构地区：[1]太原科技大学材料科学与工程学院,山西太原030024 [2]中国科学院大气物理研究所,北京100029 [3]中国科学院大学资源与环境学院,北京100049 [4]北京中科数源科技公司,北京100049

出　　处：《安全与环境工程》2023年第1期212-220,共9页Safety and Environmental Engineering

基　　金：国家自然科学基金项目(41675127、41905122、41975168、41705115)。

摘　　要：为研究淮南市不同功能区2019—2020年大气细颗粒物(PM_(2.5))的季节污染特征及其来源情况,采用热光碳分析仪、离子色谱仪和电感耦合等离子体质谱仪分别对淮南市八公山区政府、潘集区和师范学院3个采样站点不同季节大气PM_(2.5)滤膜样品中碳质组分、水溶性无机离子和无机元素进行检测分析。结果表明:采样期间,在潘集区采样站点大气PM_(2.5)的污染最为严重,其季节变化特征表现为冬季>春季>秋季>夏季;从大气PM_(2.5)中各组分的质量浓度年平均值来看,在潘集区采样站点碳质组分和无机元素的污染最为严重,而在师范学院采样站点水溶性无机离子的污染最严重;从大气PM_(2.5)中各组分的质量浓度季节变化来看,在秋季碳质组分的平均质量浓度最高、夏季其平均质量浓度最低,在春、冬季水溶性无机离子的平均质量浓度高于夏、秋季,无机元素呈现出夏季>春季>秋季>冬季的季节变化规律;PMF模型污染源解析结果显示,淮南市大气PM_(2.5)污染主要来自燃煤排放源和机动车排放源。In order to study the seasonal pollution characteristics and sources of atmospheric fine particles(PM_(2.5)) in different functional areas of Huainan City from 2019 to 2020,thermal-optical carbon analyzer, ion chromatograph, and inductively coupled plasma mass spectrometer are used to respectively detect and analyze the carbon components, water-soluble inorganic ions and inorganic elements of PM_(2.5)filter membrane samples from the three sampling sites of the government of Bagong District, Panji District and Normal College of Huainan City in different seasons.The results indicate that pollution of PM_(2.5)at the sampling site in Panji District is the most serious, and its seasonal variation characteristics are winter>spring>autumn>summer.In terms of annual average mass concentration of the component in atmospheric PM_(2.5),carbonaceous components and inorganic elements are at the highest pollution level at the sampling site in Panji District, while water-soluble inorganic ions are most polluted at the sampling site in Normal College.In terms of mass concentration seasonal variation of the component in atmospheric PM_(2.5),the average mass concentration of carbonaceous components is the highest in autumn and the lowest in summer;the average mass concentration of water-soluble inorganic ions in spring and winter is higher than that in summer and autumn;seasonal variation of average mass concentration of inorganic elements is summer>spring>autumn>winter.The PMF analysis results show that atmospheric PM_(2.5)pollution mainly comes from spontaneous combustion coal source and motor vehicle emission in Huainan City.

关 键 词：PM_(2.5) 水溶性无机离子 无机元素 碳质组分 季节分布 源解析 淮南市 

分 类 号：X513[环境科学与工程—环境工程]