Analysis on the Impacts of Straw Burning on Air Quality in Beijing -Tianjing - Hebei Region

作     者：Ma Xiaohui Tang Yixi Sun Zhaobin Li Ziming 

作者机构：Beijing Institute of Urban MeteorologyCMABeijing 100089China Environmental Meteorology Forecast Center of Beijing-Tianjin-HebeiBeijing 100089China 

出 版 物：《Meteorological and Environmental Research》 (气象与环境研究（英文版）)

年 卷 期：2017年第8卷第5期

页      面：49-53页

学科分类：082803[工学-农业生物环境与能源工程] 07[理学] 08[工学] 0828[工学-农业工程] 070602[理学-大气物理学与大气环境] 09[农学] 0903[农学-农业资源与环境] 0706[理学-大气科学] 

基　　金：Supported by Scientific Technology Item of State Grid Corporation of China(52010115002P) 

主　　题：Fog and haze Heavy air pollution Straw burning Air quality Weather situation 

摘      要：The beginning of October is the high occurrence period of straw burning in North China and Jianghuai region. Heavy pollution weather caused by straw burning often takes place in recent two years,and thus human factor increases the unpredictability of the air quality forecast. In the early autumn of 2015,a continuous fog-haze weather and heavy air pollution event occurred in North China and Jianghuai region due to the straw burning. In this paper,the effect of straw burning on air quality under the same adverse diffusive meteorological conditions has been analyzed by using the ground and upper air meteorological observation data and air quality monitoring data of Environmental Protection Agency in recent two years. The comparison results show that the basic conditions of heavy pollution are weak wind and the unfavorable diffusion situation. In contrast,relative humidity is the key factor,only 40% of relative humidity during the straw burning can reach heavy pollution level during no straw burning.