节能环保限制条件下PM_(2.5)大气污染物浓度变化特征研究

Change Characteristics of PM_(2.5) Air Pollutant Concentration under Restriction Conditions of Energy Conservation and Environmental Protection

针对现阶段PM_(2.5)大气污染物浓度变化评估方法存在的误差偏大问题,提出节能环保限制条件下PM_(2.5)大气污染物浓度变化特征研究。从污染物源头与传播扩散因素两方面入手,结合当前节能环保限制条件,对其变化过程中的核心数据进行关联分析,建立PM_(2.5)大气污染物浓度变化特征模型,分析PM_(2.5)大气污染物浓度变化特征与PM_(2.5)大气污染物组成,深入分析影响PM_(2.5)大气污染物浓度变化因素,同时将分析所得参量进行关联,获得可靠度更高的变化特征量。仿真测试表明,所提方法具有浓度变化特征评估值误差小、稳定性好、浓度变化趋势评估相似度高的特性。

In view of the large errors existing in the current assessment methods of PM_(2.5) air pollutant concentration change,the characteristics of PM_(2.5) air pollutant concentration change under the restriction of energy conservation and environmental protection were proposed.Starting from two aspects of pollutant source and propagation and diffusion factors,combined with the current energy-saving and environmental protection restrictions,the correlation analysis of the core data in the process of changes was carried out,and the characteristic model of PM_(2.5)air pollutant concentration change was established to analyze the characteristics of PM_(2.5) air pollutant concentration change and the composition of PM_(2.5) air pollutants.The factors affecting the variation of PM_(2.5) atmospheric pollutant concentration were deeply analyzed,and the parameters obtained from the analysis were correlated to obtain the variation characteristic quantity with higher reliability.The simulation results show that the proposed method has the characteristics of small error,good stability and high similarity of concentration trend evaluation.