气象要素对杭州湾北岸臭氧生成的影响  

Impact of Meteorological Factors on Ozone Generation in North Shore of Hangzhou Bay

作　　者：顾海欣 GU Hai-xin(Shanghai Jinshan Environmental Monitoring Station,Shanghai 200540,China)

机构地区：[1]上海市金山区环境监测站,上海200540

出　　处：《四川环境》2025年第2期46-53,共8页Sichuan Environment

摘　　要：为研究气象条件对臭氧生成的影响,利用杭州湾北岸上海市金山区环境在线监测数据和气象数据,分析了2022年10月至2023年9月臭氧污染变化特征,以及与主要气象因子之间的相互关系,可为区域臭氧污染的防控提供重要技术支撑。结果表明:杭州湾北岸臭氧污染主要分布于4—9月,较重污染集中在5—6月。臭氧浓度最高值出现在第2季度,臭氧日变化呈单峰型,最高值出现在15时左右。NO_(X)浓度最高值出现于第4季度,日变化呈弱双峰结构,最高值出现于08时左右,NO_(X)对臭氧存在滴定作用。杭州湾北岸臭氧与气象要素关系紧密,高温、低湿、南风及东南风易出现臭氧污染。在气温大于25℃,相对湿度小于60%的气象条件下有利于臭氧生成;南风、东南风,且风速在2.0~3.5 m/s时,叠加杭州湾南岸气团传输影响,杭州湾北岸更易出现臭氧浓度高值。In order to study the influence of meteorological conditions on ozone generation,the characteristics of ozone pollution and its relationship with meteorological factors from October 2022 to September 2023 was analyzed in this paper based on online monitoring data and meteorological data of Jinshan District,Shanghai in the North Shore of Hangzhou Bay.This study provides important technical support for the prevention and control of regional ozone pollution.The results showed that ozone pollution mainly occurred from April to September 2023,and the heavy pollution was concentrated from May to June 2023 in the North Shore of Hangzhou Bay.The highest ozone concentration occurred in Q2,2023.Diurnal variation of ozone concentration showed a single peak type,with the greatest concentration at 15:00.The highest NO_(X) concentration occurred in Q4,2022.Diurnal variation of NO_(X) concentration showed a weak bimodal structure,with the highest concentration around 08:00.NO_(X) has titling effect on ozone.There was a close relationship between ozone concentration and meteorological elements in the North Shore of Hangzhou Bay.High temperature,low humidity,south wind and southeast wind were prone to ozone pollution.Ozone generation was favored under meteorological conditions with temperature greater than 25℃and relative humidity less than 60%.Under the southeast wind and south wind,the wind speed of 2.0~3.5 m/s,and the influence of air mass transmission on the south shore of Hangzhou Bay,the highest ozone concentration was more likely to appear on the north shore of Hangzhou Bay.

关 键 词：臭氧污染 气象因子 氮氧化物 

分 类 号：X515[环境科学与工程—环境工程] X823