低浓度SO_2和NO_x自动监测系统性能评价方法  

The Performance Evaluation Methods for Continuous Emission Monitoring System at Low Concentrations in Flue Gases from Stationary Sources

作　　者：石爱军[1] 马俊文[1] 李建军[1] 

机构地区：[1]北京市环境保护监测中心,北京100048

出　　处：《环境监测管理与技术》2014年第1期9-13,38,共6页The Administration and Technique of Environmental Monitoring

基　　金：北京市科委<固定污染源低浓度气态污染物自动监测技术规范>基金资助项目

摘　　要：通过对7种废气自动监测系统的比较研究和现场测试,提出了非分散红外法、紫外差分法、紫外荧光法、化学发光法等多种SO2和NO x自动监测技术在低浓度范围实现准确定量监测的性能评价方法,定义了CEMS的系统检出限及其主要影响因素。建议采用系统检出限、线性误差等关键参数作为低浓度CEMS的性能评价方法,提出将全系统多点标准气体校准或加标回收率作为验收和质控监督的基本方法。Based on the comparative studies and field testing on seven kinds of CEMS,the performance e-valuation methods of NDIR,UV-Difference,UV Fluorescence and Chemiluminescent were put forward for the ac-curate quantification of SO2 and NO x at low concentrations in flue gases form stationary sources.The system detec-tion limit of CEMS was defined and its main influencing factors were discussed.The system detection limit and linearity error were recommended to be key parameters of performance evaluation.Multi-point calibration or spiked recovery was suggested to be the base method of acceptance check and quality control.

关 键 词：低浓度废气污染物 固定污染源烟气在线监测系统 系统检出限 线性误差 SO2 NOx 

分 类 号：X851[环境科学与工程—环境工程]