我国环境空气中温室气体监测技术研究进展

开展温室气体监测,获取温室气体浓度水平并以此开展相关研究是实现碳达峰、碳中和的重要支撑。简述了世界气象组织、我国气象部门及生态环境部门制定温室气体监测标准情况,分析了非色散红外法、气相色谱法、光腔衰荡光谱法、离轴腔积分系统法等温室气体监测技术方法的测量原理、应用场景及优缺点,以及进样系统与标校系统的研究进展,展望了温室气体监测技术的发展前景,以期为我国开展温室气体监测工作提供参考与借鉴。

Research Progress in Monitoring Technology for Atmospheric Greenhouse Gases in China

The monitoring of greenhouse gas(GHG)is the important supports for achieving China’s target of peak carbon emission and zero-carbon.This paper summarized the GHG monitoring standards form World Meteorological Organization,China Meteorological Administration and Ministry of Ecological Environment,reviewed the major GHG measurement technologies including the non-dispersive infrared method,gas chromatography,optical cavity ring-down spectroscopy,off-axis cavity integral system.The principles,the advantages and disadvantages of the methods were analyzed,the suitable application scenarios of different methods were proposed,the importance of sampling and calibration system was highlighted,the development of GHG measurement technology was forecasted.It is expected to provide reference and support for China’s greenhouse gas monitoring network.