论文部分内容阅读
随着科技的进步,大气污染问题日益突出。人类活动使得大气中氮氧化物、硫氧化物和挥发性有机物等有害气体的浓度大幅增加。这些有害气体对我国大范围雾霾污染的形成起到了不可忽视的作用。为了积极防控大气污染,需要环境监测系统的支撑,通过对大气环境中有害物质浓度的监测,来制定有效的应对策略。近来,方兴未艾的光谱技术为浓度的测量提供了独有的非接触性探测方法,其中尤以吸收光谱、激光诱导荧光、激光感生击穿光谱和差分光学吸收光谱等
With the progress of science and technology, the air pollution problem becomes more and more prominent. Human activities have led to a dramatic increase in concentrations of noxious gases such as nitrogen oxides, sulfur oxides and volatile organic compounds in the atmosphere. These harmful gases have played a significant role in the formation of a wide range of haze pollution in our country. In order to actively prevent and control air pollution, it needs the support of environmental monitoring system and formulates effective countermeasures by monitoring the concentration of harmful substances in the atmospheric environment. Recently, the emerging spectrum technologies provide unique non-contact detection methods for concentration measurement, including absorption spectroscopy, laser induced fluorescence, laser induced breakdown spectroscopy and differential optical absorption spectroscopy