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气象因素对泉州臭氧的影响
Influence of Local Meteorology on Ground-Level Ozone Concentration in Quanzhou
投稿时间:2018-04-13  修订日期:2019-01-11
DOI:10.19316/j.issn.1002-6002.2019.03.15
中文关键词:  泉州  臭氧浓度  气象因素
英文关键词:Quanzhou  ozone concentration  meteorological factor
基金项目:泉州市科技计划项目(2018Z038)
作者单位
佘日新 福建省泉州环境监测中心站, 福建 泉州362000 
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中文摘要:
      利用泉州城区2017年全年连续观测的O3和气象要素资料,统计了臭氧浓度的分布特征,分析了气象要素对O3质量浓度的影响,对比了O3超标日和非超标日的气象要素特征。结果表明:①泉州市O3质量浓度月变化呈双峰形,春季最高,夏季最低;日变化呈单峰形,最大值出现在13:00—14:00,最小值出现在06:00—07:00,上下游站O3浓度存在明显传输效应。②泉州O3质量浓度与相对湿度呈负相关,其相关性最高;与风速呈正相关,其相关系数最低,且存在明显区位性差异;与气温的相关性比较复杂,既有正相关,也有负相关。③各站点O3小时质量浓度超标时,均对应2个气象要素区间值。④对比污染日非污染日发现,污染日相对湿度较低(50%~60%),非污染日较高(70%~80%);污染日温度略低于非污染日;污染日风向总体为西南偏南,非污染日风向为西南-东南。
英文摘要:
      Based on hourly surface ozone measurements and meteorological data in Quanzhou over the whole year of 2017, the temporal-spatial distribution of ozone concentration, its relationship with meteorological factors are analyzed, and the characteristics of meteorological elements on O3 over-standard day and non-over-standard day are compared. The results show that:① The monthly variations of ozone concentration exhibit double peak mode, in which the highest ozone concentration occurs in spring, and lowest in summer; the diurnal pattern of ozone shows a single peak mode, the maximum of ozone concentration appears at 13:00-14:00, and the minimum at 06:00-07:00, whereas there is a significant transmission effect between the upstream and downstream station. ② O3 concentration is negatively correlated with humidity, and its correlation efficiency is the highest over all the meteorology factors; O3 concentration is positively correlated with wind speed, and its correlation efficiency is the lowest, but there are obvious regional differences; the correlation ship between temperature and ozone are complicated. ③ When O3 concentration exceeds the standard, it corresponds to two meteorological element interval values. ④ Relative humidity is lower on pollution day (50%-60%), higher on non-polluting day (70%-80%); temperature also is lower on pollution day, higher on non-polluting day; wind direction is south-southwest on pollution day, and southwest-southeast on non-polluting day.
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