长江三角洲地区臭氧污染特征与影响因素分析——以海宁市为例
Analysis on Characteristics and Influencing Factors of Ozone Pollution in Yangtze River Delta—Taking Haining City as an Example
DOI: 10.12677/OJNS.2023.115091, PDF,  被引量    科研立项经费支持
作者: 邵一泓, 冯 晨, 王大义：嘉兴市海宁环境监测站，浙江 嘉兴；冯晓冬*, 许渊杰：嘉兴市生态环境局海宁分局，浙江 嘉兴；郭豫川：海宁市生态环境保护行政执法队，浙江 嘉兴
关键词: 臭氧；二氧化氮；污染特征；气象要素；O3； NO2； Pollution Characteristics； Meteorological Elements
摘要: 利用海宁市空气质量自动监测数据与气象因子数据，研究臭氧(O3)污染特征、变化趋势以及主要影响因素。结果表明，2022年海宁市共出现38个O3轻度污染日，且ρ(O3-8h-90per)超标2.5%，影响该市空气质量达标情况。ρ(O3)存在显著的季节变化与日变化特征，其中季节变化呈“双峰”特征，高值主要集中在3~9月；日变化呈“单峰”特征，于14时达到日最高值，受日出时间等因素影响，不同季节日变化特征略存差异。ρ(O3)与前体物浓度、颗粒物浓度均呈负相关关系，ρ(O3)高值通常出现在NO2/CO比值相对较高区域。ρ(O3)与温度呈正相关，与相对湿度呈负相关，与风速间存较弱的正相关关系，其中春、夏两季受东南方向传输影响，冬季还受西北方向传输影响。
Abstract: The pollution characteristics, trends and mainly factors were studied under the using of automatic monitoring data of air quality and meteorological factors in Haining. The results demonstrated that there were 38 days of O3 mild pollution during 2022, and ρ(O3-8h-90per) exceeded 2.5%, which impacted the air quality of the city. ρ(O3) had significant seasonal and daily variation characteristics, among which the seasonal variation was characterized by “double peaks”, and the high value were mainly concentrated in March and September. The daily variation was characterized by “single peak” and reached the daily maximum at 14:00. Affected by factors such as sunrise time, the daily variation characteristics of different seasons were slightly different. ρ(O3) had a negative correlation with the concentration of precursors and particles. The high value of ρ(O3) usually occurred in the region with relatively high NO2/CO ratio. ρ(O3) had a positive correlation with temperature, a negative correlation with relative humidity, and a weak positive correlation with wind speed. In spring and summer, it was affected by the southeast transmission, and in winter, it was also affected by the northwest transmission.
文章引用：邵一泓, 冯晓冬, 冯晨, 王大义, 郭豫川, 许渊杰. 长江三角洲地区臭氧污染特征与影响因素分析——以海宁市为例[J]. 自然科学, 2023, 11(5): 760-770. https://doi.org/10.12677/OJNS.2023.115091

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