阜新市城区臭氧污染特征及气象成因分析

Characteristics of ozone pollution and analysis of meteorological causes in the urban area of Fuxin city

为了解阜新市城区O_(3)(臭氧)污染特征及其影响因素,基于2020年1月1日~10月27日空气质量监测数据气象参数,分析了阜新城区O_(3)月浓度、日浓度变化特征,探讨了温度、湿度、风速及风向等气象要素对O_(3)污染的总体影响。结果表明:在气温大于30℃、相对湿度为40%~45%、风速为3~4级、盛行东北风向和西南风向的条件下,O_(3)浓度超标天数占监测时段总超标天数的66.6%;温度、相对湿度、风速、风向显著影响O_(3)污染水平,超标日的气象条件可作为阜新市城区O_(3)污染预测指标。

In order to understand the characteristics and influencing factors of O_(3)(ozone)pollution in the urban area of Fuxin city,the continuous monitoring data of air quality and meteorological parameters in the urban area of Fuxin city from January 1,2020 to October 27,2020 were collected.The characteristics of monthly and daily O_(3) concentrations in the urban area of Furin city during the monitoring period were analyzed.The influence of temperature,humidity,wind speed and wind direction on O_(3) pollution were explored.The results show that when the air temperature>30℃,relative humidity was 40%~45%,wind speed was level 3~4,and the prevailing winds were northeasterly and southwesterly winds,the number of the exceedance days caused by O_(3) accounts for 66.6% of the total number of the exceedance days during the monitoring period.The temperature,relative humidity,wind speed and direction significantly affect the O_(3) pollution levels.Meteorological conditions of the exceedance days can be used as a predictor of O_(3) pollution in Fuxin city.