安阳市PM_(10)污染特征及其来源解析  

Characteristics and Source Apportion of Atmospheric PM_(10) in Anyang City

作　　者：张小雪 赵海丽 庞莉 王兵 刘红艳 刘桓嘉 Zhang Xiaoxue;Zhao Haili;Pang Li;Wang Bing;Liu Hongyan;Liu Huanjia(Henan Anyang Ecological Environment Monitoring Center,Anyang 455000,Henan,China;School of Environment,Henan Normal University,Xinxiang 453007,Henan,China)

机构地区：[1]河南省安阳生态环境监测中心,河南安阳455000 [2]河南师范大学环境学院,河南新乡453007

出　　处：《绿色科技》2025年第2期152-158,共7页Journal of Green Science and Technology

基　　金：国家自然科学基金项目(编号:42007204)。

摘　　要：为探究安阳市大气PM_(10)污染特征及来源,于2023年4-6月在安阳市5个监测点位分时段采集了250个PM_(10)样品,并进行了有机碳元素碳,9种水溶性离子,25种元素分析。着重探讨5个点位采样期间水溶性离子分布特征、OC/EC比值及PMF源解析,结果表明:安阳市PM_(10)水溶性离子浓度分布基本呈现工业区>城乡接合部>商业居住混合区>农业农村;水溶性离子含量由高到低依次为NO_(3)^(-)、Ca^(2+)、SO_(4)^(2-)、NH_(4)^(+)、Mg^(2+)、F^(-)、Na^(+)、Cl^(-)、K^(+),且采样期间86.5%的ρ(NO_(3)^(-))/ρ(SO_(4)^(2-))比值大于1;5个点位的OC/EC值主要分布于1.5~3.5,介于机动车尾气排放和燃煤源排放;PMF源解析结果显示机动车排放源为曲沟镇和安钢职工学校的主要贡献源;扬尘源为左辅环卫站、东风乡的主要贡献源,工业源为红庙街的主要贡献源,燃煤源占比中东风乡最高,生物质燃烧贡献为左辅环卫站较为突出。研究结果显示安阳市PM_(10)空间特征分布明显,水溶性离子来源复杂,应采取多源控制的污染防治措施。In order to explore the characteristics and sources of atmospheric PM_(10) pollution in Anyang City,250 PM_(10) samples were collected at 5 monitoring sites in Anyang City from April to June 2023,and organic carbon,9 water-soluble ions and 25 elements were analyzed.This paper focuses on the distribution characteristics of water-soluble ions,OC/EC ratio and PMF source analysis during the sampling period of five points.The results show that the concentration distribution of water-soluble ions of PM_(10) in Anyang city is basically the industrial zone>urban and rural junction>commercial and residential mixed areas>agricultural and rural areas.The contents of water-soluble ions from high to low are NO_(3)^(-),Ca ^(2+),SO_(4)^(2-),NH_(4)^(+),Mg ^(2+),F^(-),Na^(+),Cl^(-),K^(+)and the ratio ofρ(NO_(3)^(-))/ρ(SO_(4)^(2-))of 86.5%is greater than 1.The OC/EC values of the five points are mainly distributed in the range of 1.5~3.5,between motor vehicle exhaust emissions and coal source emissions.The PMF source analysis results show that the vehicle emission source is the main contribution source of Qugou Town and Angang Staff School.The dust source is the main contribution source of Zuofu sanitation station and Dongfeng Village.The industrial source is the main contribution source of Hongmiao Street.The coal source accounts for the highest proportion in Dongfeng Village,and the biomass combustion contribution is more prominent in Zuofu sanitation Station.The study shows that the spatial characteristics of PM_(10) in Anyang city are obvious,and the sources of water-soluble ions are complex.Therefore,multi-source control measures should be taken to prevent and control pollution.

关 键 词：大气环境学 PM_(10)污染特征 水溶性离子 有机碳 元素碳 PMF源解析 

分 类 号：X511[环境科学与工程—环境工程]