Under the growing demand of PM2.5 monitoring, this paper compares two commonly used methods of PM2.5 monitoring, β-ray method and Tapered Element Oscillating Microbalance (TEOM) method, including an overview of the operation principles, and summary of the use of different instruments. Based on the results of recent comparison tests in China, this paper gives an outlook of comprehensive and systematic comparison study of PM2.5 automatic monitoring methods in the future.%在PM2.5监测受到日益重视的背景下,对β射线法和微振荡天平法(TEOM)这2种主要的PM2.5自动监测方法的工作原理和使用情况进行概述,给出了国内现有β射线法和TEOM法的比对测试结果,对今后开展全面系统的PM2.5自动监测和研究工作提供参考.
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