伊宁市采暖期PM_(2.5)载带主要水溶性无机离子特征分析  

Characteristic Analysis of Main Water-soluble Inorganic Ions in PM_(2.5) Belt during Heating Period in Yining City

作　　者：胡锋[1,2] 王兴磊 刘云庆[1] 加娜尔[2] HU Feng;WANG Xinglei;LIU Yunqing;JIA Naer(Key Laboratory of Pollutant Chemistry and Environmental Treatment,College of Chemistry&EnvironmentalSciences,YiLi Normal University,Yining 835000,China;Yili Environmental Monitoring Center Station,Yining 835600,China)

机构地区：[1]污染物化学与环境治理重点实验室伊犁师范学院化学与环境科学学院,新疆伊宁835000 [2]伊犁州环境监测站监测分析室,新疆伊宁835000

出　　处：《邵阳学院学报（自然科学版）》2018年第6期71-76,共6页Journal of Shaoyang University：Natural Science Edition

基　　金：伊犁师范学院科研基金项目(2016HJYB08);2018年自治区创新环境建设专项联合基金(2018D01C009)

摘　　要：2016年11月—2017年2月采暖期在伊犁州环保局设置采样点采集环境空气中的PM_(2.5),利用离子色谱法测定PM_(2.5)中水溶性无机离子(water soluble inorganic,WSIN)含量,分析PM_(2.5)中水溶性无机离子的组成等。结果表明,伊宁市采暖期PM_(2.5)平均质量浓度为54. 9μg/m3,PM_(2.5)中总水溶性离子占PM_(2.5)的比例为11.7%,含量较高的3种水溶性离子依次为SO2-4、NO-3和Cl-,阴阳离子当量回归分析表明,采暖期PM_(2.5)偏碱性;[NO-3]/[SO2-4]平均值为0. 25±0. 08,说明伊宁市的采暖期大气污染是以煤烟型污染为主,并与机动车尾气等共存的复合型污染。PM2.5 samples were collected in Yili Environmental Protection Agency during Nov 2016 and Feb 2017.Water soluble inorganic(WSIN)were analyzed by ion chromatography so as to analyze the component,and so on.The results showed that the average mass concentration of PM2.5 was 54.9μg/m^3,the proportion of total water-soluble ions in PM2.5 was 11.7%,and the three water-soluble ions with higher content were SO4^2-,NO3^-and Cl-,respectively.The regression analysis of anion and cation equivalents showed that PM2.5 was alkaline during heating period;the average value of[NO3^-]/[SO4^2-]was 0.25±0.08,indicating that the main air pollution in Yining during heating period is soot pollution,which coexisted with motor vehicle exhaust and other complex pollution.

关 键 词：PM2.5 水溶性离子 采暖期 伊宁市 

分 类 号：X823[环境科学与工程—环境工程]