合肥市臭氧时空分布特征与气象因子影响研究

大气与环境光学学报 ›› 2021, Vol. 16 ›› Issue (4): 339-348.

合肥市臭氧时空分布特征与气象因子影响研究

汪水兵1;2, 刘桂建2, 杨鹏1, 张红1∗, 洪星园1, 朱森1, 包翔1, 秦志勇1

1 安徽省环境科学研究院, 安徽合肥 230071; 2 中国科学技术大学地球和空间科学学院, 中国科学院壳幔物质与环境重点实验室, 安徽合肥 230026

收稿日期:2021-03-18 修回日期:2021-04-07 出版日期:2021-07-28 发布日期:2021-07-28
通讯作者: E-mail: 602463559@qq.com E-mail:68456064@qq.com
作者简介:汪水兵 (1978 - ), 安徽安庆人, 博士, 高级工程师, 硕士生导师, 主要从事大气与环境方面的研究。 E-mail: shbwang2006@163.com
基金资助:
国家重点研发计划课题

Temporal and Spatial Distribution Characteristics of Ozone and Influence of Meteorological Factors in Hefei

WANG Shuibing1;2, LIU Guijian2, YANG Peng1, ZHANG Hong1∗, HONG Xingyuan1, ZHU Sen1, BAO Xiang1, QIN Zhiyong1

1 Anhui Research Academy of Environmental Sciences, Hefei 230071, China; 2 CAS Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China

Received:2021-03-18 Revised:2021-04-07 Published:2021-07-28 Online:2021-07-28
Supported by:
Supported by National Basic Research Program of China (国家重点基础研究发展计划, 2018YFX0213806); Key Research and Development Program of Anhui Province (安徽省重点研究与开发计划, 1804a0802196)

摘要/Abstract

摘要： 利用合肥市 10 个国控站点 2019 年臭氧 (O3) 浓度数据, 采用数理统计和回归分析方法研究 O3 时空分布特征及气象因子的影响。结果表明: (1) O3小时及月均浓度均呈单峰型, 6 月份达到峰值; (2) 董铺水库和高新区站点 O3 对污染天气的贡献率相对较高, 贡献率均超过 10%; (3) 2019 年超标时次较多的站点为董铺水库和高新区, 且出现在夏季; (4) 温度、相对湿度和太阳总辐射与 O3 浓度呈正相关, 温度在 30∼35◦C、相对湿度在 40%∼50% 和太阳总辐射在 800∼1000 W·m−2 时 O3 浓度达到最高值; 风速在 4∼4.5 m·s−1 时外源输送较强烈, O3 浓度较高; 降水对 O3 前体物有清除作用, O3 浓度越高, 降水的清除作用越明显。

关键词: 合肥市, 臭氧, 时空分布, 气象因子

Abstract: Based on the ozone (O3) concentration data of 10 national control stations in Hefei City, China in 2019, the spatial and temporal distribution characteristics of O3 and the influence of meteorological factors were studied by using mathematical statistics and regression analysis. The results show that: (1) the hourly and monthly average concentration of O3 is unimodal, and the monthly average concentration of O3 reaches the peak in June. (2) The contribution rate of O3 in Dongpu reservoir and High Tech Zone to polluted weather is relatively high, and the contribution rate is more than 10%. (3) The stations with more times of exceeding the standard in 2019 are mainly located in Dongpu Reservoir and High Tech Zone, and appear in summer. (4) Temperature, relative humidity and total solar radiation are positively correlated with O3 concentration, and O3 concentration reaches the highest value when temperature is 30∼35 ◦C, relative humidity is 40%∼50% and total solar radiation is 800∼1000 W·m−2. When the wind speed is 4∼4.5 m·s−1, the exogenous transportation is strong and the O3 concentration is high. In addition, precipitation has the scavenging effect on O3 precursor, and the higher O3 concentration, the more obvious the removal effect of precipitation.

Key words: Hefei City, ozone, temporal and spatial distribution, meteorological factors

中图分类号:

X511

汪水兵, 刘桂建, 杨鹏, 张红∗, 洪星园, 朱森, 包翔, 秦志勇. 合肥市臭氧时空分布特征与气象因子影响研究[J]. 大气与环境光学学报, 2021, 16(4): 339-348.

WANG Shuibing, LIU Guijian, YANG Peng, ZHANG Hong∗, HONG Xingyuan, ZHU Sen, BAO Xiang, QIN Zhiyong. Temporal and Spatial Distribution Characteristics of Ozone and Influence of Meteorological Factors in Hefei[J]. Journal of Atmospheric and Environmental Optics, 2021, 16(4): 339-348.

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