β射线法固定污染源废气颗粒物快速测定方法研究  

Study on Rapid Determination of Particulate Matter in Waste Gas from Stationary Source by β-ray

作　　者：李彦 徐标 潘齐 丛吉明 杨雨欣 张桂芹[2] LI Yan;XU Biao;PAN Qi;CONG Ji-ming;YANG Yu-xin;ZHANG Gui-qin(Shandong Ecological Environment Monitoring Center,Jinan,Shandong 250101,China;School of Municipal and Environmental Engineering,Shandong Jianzhu University,Jinan,Shandong 250101,China)

机构地区：[1]山东省生态环境监测中心,山东济南250101 [2]山东建筑大学市政与环境工程学院,山东济南250101

出　　处：《环境监测管理与技术》2022年第3期57-59,71,共4页The Administration and Technique of Environmental Monitoring

基　　金：山东省生态环境标准制修订基金资助项目(Z19010Z)。

摘　　要：通过实验室模拟及现场检测,对烟道外过滤的β射线法测定固定污染源废气中颗粒物浓度的检出限、精密度、准确度、可靠性等进行分析研究。结果表明:β射线法监测颗粒物方法检出限为0.1 mg/m^(3);低、中、高3个不同质量浓度水平的颗粒物标准样品6次监测结果的RSD分别为4.6%、2.7%、1.6%,相对误差分别为(2.9±9.5)%、(0.8±5.5)%、(1.5±3.2)%,标准样品测定的颗粒物质量浓度越高,精密度和准确度越好。将该方法与重量法监测结果对比,发现两种方法测量数值变化趋势一致,且颗粒物浓度越高,两种方法相对偏差越小,一致性越高。In this paper,the detection limit,precision,accuracy and reliability of the method were studied for determining the concentration of particulate matter in waste gas from stationary source by outside flue filtration and β-ray through laboratory simulation and field detection.The results showed that the method detection limit was 0.1 mg/m^(3).The RSDs of 6 measurements of particulate matter standard sample with low,medium and high mass concentration were 4.6%,2.7% and 1.6%,respectively,and the relative errors were(2.9±9.5)%,(0.8±5.5)% and(1.5±3.2)%,respectively.The higher the mass concentration of particulate matter measured by standard sample,the better the precision and accuracy.Comparing this method with gravimetric method,it was found that the change trend of the measurements by the two methods was consistent.The higher the particle concentration,the smaller the relative deviation and the higher the consistency of the two methods.

关 键 词：颗粒物 Β射线法 重量法 固定污染源 快速测定 废气 

分 类 号：X831[环境科学与工程—环境工程]