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贵阳市臭氧浓度变化及与气象因子的关联性
The Correlation Between the Characteristics of Ozone Concentration and Meteorological Factors in Guiyang
投稿时间:2018-01-15  修订日期:2019-02-12
DOI:10.19316/j.issn.1002-6002.2019.03.12
中文关键词:  贵阳市  臭氧  变化特征  气象因子
英文关键词:Guiyang  ozone  change characteristics  meteorological factors
基金项目:贵阳市科学技术协会软课题项目(2017A64)
作者单位
张春辉 贵阳市环境信息中心, 贵州 贵阳550002
贵阳市环境空气质量预测预报中心, 贵州 贵阳550002 
刘群 贵阳市环境信息中心, 贵州 贵阳550002
贵阳市环境空气质量预测预报中心, 贵州 贵阳550002 
徐徐 贵阳市环境信息中心, 贵州 贵阳550002
贵阳市环境空气质量预测预报中心, 贵州 贵阳550002 
赵晓韵 贵阳市环境信息中心, 贵州 贵阳550002
贵阳市环境空气质量预测预报中心, 贵州 贵阳550002 
钟敏文 贵阳市环境信息中心, 贵州 贵阳550002
贵阳市环境空气质量预测预报中心, 贵州 贵阳550002 
王琴 贵阳市环境信息中心, 贵州 贵阳550002
贵阳市环境空气质量预测预报中心, 贵州 贵阳550002 
马琳达 贵阳市环境空气质量预测预报中心, 贵州 贵阳550002 
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中文摘要:
      运用2013—2016 年贵阳市环境空气自动监测站臭氧(O3)的监测数据以及气象观测资料,分析该地区近地面O3浓度的时空变化特征及与气象因子的关联性。结果表明,近年来贵阳市近地面 O3 小时浓度均值有逐年升高趋势,增速为 1.1~5. 0 μg/(m3·a)。O3 浓度昼间变化呈明显单峰形分布,08:00左右出现最低值,15:00—16:00达到最大峰值,浓度高值主要分布在12:00—18:00。日照时数每增加1 h,则近地面O3日最大8 h平均浓度增加 8 μg/m3左右,日照时数大于8 h,则近地面O3日最大8 h平均浓度超过100 μg/m3;O3 小时浓度与温度呈正相关(r=0.724,α=0.01),与相对湿度呈负相关(r=-0.531,α=0.01)。当日照时数大于8 h、温度超过 25℃、相对湿度小于 60% 时,贵阳市近地面O3容易出现高浓度值。
英文摘要:
      In the article, both continuous automated monitoring observations of near-surface ozone (O3) and meteorological data from 2013 to 2016 in Guiyang were employed to analyze the variation characteristics of near-surface O3 concentration and its relationship with meteorological parameters. The results showed that in recent years, the average concentration of hourly O3 in Guiyang City has been increasing year by year, with a growth rate of 1.1-5.0 μg/(m3·a). The diurnal variation of O3 concentration showed a unimodal distribution with the lowest value at around 8:00 and the largest peak at 15:00 to 16:00 and the high value period at 12:00 to 18:00. The average concentration of maximum daily of 8-h O3 increased by about 8 μg/m3 each additional hour of sunshine duration. When the number of sunshine hours was more than 8h, the average concentration of maximum daily of 8-h O3was over 100 μg/m3. The hourly O3concentration was positively correlated with temperature (r=0.724, α=0.01) and showed a significantly negative correlation with relative humidity (r=-0.531, α=0.01). If the conditions that the sunshine duration is more than 8h, the temperature is higher than 25℃ and the relative humidity is lower than 60% are met, the O3 concentration is apt to appear high value.
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