引用本文:黄艳玲,陈慧娴.佛山市臭氧浓度时间变化特征及主要影响因子[J].环境监控与预警,2017,9(1):54-58
HUANG Yan ling,CHEN Hui xian.Temporal Variation of Ozone Concentration and Key Impact Factors in Foshan[J].Environmental Monitoring and Forewarning,2017,9(1):54-58
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佛山市臭氧浓度时间变化特征及主要影响因子
黄艳玲,陈慧娴1,2
1. 佛山市环境监测中心站,广东 佛山 528000;2. 佛山市气象局,广东 佛山 528000
摘要:
对佛山市2011—2014年O3监测数据进行分析,结果表明,ρ(O3)日变化呈现明显的单峰特征,2011—2014年O3日最大8小时滑动均值(O3-8 h)的年评价值没有出现显著的下降趋势,超标值多出现在8—10月。夏季O3-8 h与日平均气温的相关系数较高,O3污染多发生在气温>30℃,相对湿度为50%~70%的气象条件下。相对湿度<60%,气温为20~25℃,也可能出现O3污染。>10℃时,不同的温度条件下,O3与PM2.5存在正相关关系。在不同的季节时段,O3-8h基本随着ρ(NO2)/ρ(NO)增大而增大。
关键词:  臭氧  气象条件  O3-8 h  可入肺颗粒物  ρ(NO2)/ρ(NO)  佛山
DOI:
分类号:X515
文献标识码:B
基金项目:佛山市科技发展专项资金资助项目(2012AA100741);广东省科技计划资金资助项目(2011A 08083007);佛山市科技计划资金资助项目(2015AB 004381)
Temporal Variation of Ozone Concentration and Key Impact Factors in Foshan
HUANG Yanling,CHEN Huixian1,2
1. Foshan Environmental Monitoring Central Station, Foshan, Guangdong 528000, China;2. Foshan Meteorological Bureau, Foshan ,Guangdong 528000, China
Abstract:
After the implementation of the new ambient air quality standards, O3 pollution is more and more concerned. Especially in the Pearl River Delta, O3 had become one of the main pollutants. This paper analysed O3 monitoring data between 2011 and 2014 in Foshan City. The results showed that the diurnal variation of O3 concentration has obvious characteristic of single peak, daily maximum 8 hour moving average (O3 8h) was usually the average concentration 11pm to 18pm. Between 2011 and 2014 O3 8h of the 90th percentile did not decline significantly. O3 8h of the 90th percentile usually appeares in August, September and October. In summer, O3 8h and average daily temperature correlated significantly, O3 pollution usually appears when the temperature reaches more than 30℃ and the relative humidity is between 50% and 70%. It might also appear O3 pollution, when the relative humidity is below 60% and the temperature is between 20℃ to 25℃. There is a positive correlation between O3 and PM2.5 in different temperature conditions which is above 10℃. In different seasons, O3 8h increases as the ρ(NO2)/ρ(NO) ratio increases.
Key words:  O3  Weather conditions  O38h  PM2.5  ρ(NO2)/ρ(NO) ratio  Foshan