设为首页 加入收藏 登录旧版
2013—2016年74城市臭氧浓度变化特征
Characteristics of Ozone Concentration Variation in 74 Cities from 2013 to 2016
投稿时间:2017-02-14  修订日期:2017-03-20
DOI:10.19316/j.issn.1002-6002.2017.05.15
中文关键词:  74城市  臭氧  浓度特征  变化趋势
英文关键词:74 cities  ozone  concentration characteristics  variation trend
基金项目:国家环境保护公益性行业科研专项"我国臭氧污染态势及控制途径研究"(201509002)。
作者单位
孟晓艳 中国环境监测总站, 国家环境保护环境监测质量控制重点实验室, 北京 100012 
宫正宇 中国环境监测总站, 国家环境保护环境监测质量控制重点实验室, 北京 100012 
叶春霞 莱州市环保局, 山东 莱州 261400 
王帅 中国环境监测总站, 国家环境保护环境监测质量控制重点实验室, 北京 100012 
孙浩 廊坊市环境监测站, 河北 廊坊 065000 
张霞* 中国环境监测总站, 国家环境保护环境监测质量控制重点实验室, 北京 100012 
通讯作者:张霞*  中国环境监测总站, 国家环境保护环境监测质量控制重点实验室, 北京 100012  
摘要点击次数: 73
全文下载次数: 
中文摘要:
      利用2013—2016年74城市臭氧(O3)监测数据,综合探讨了全国74城市O3浓度时空变化特征、变化趋势。结果表明:2013—2016年,74城市O3-8 h各百分位浓度总体呈上升趋势,且百分位较高区间O3浓度逐年上升速率越快,O3-8 h第95百分位浓度年增长5.3 μg/m3,其次是第90百分位;O3区域性污染特征明显,京津冀及周边、长三角、珠三角O3污染问题突出;74城市O3浓度超标天数年增长3 d/城市,O3污染呈明显日、季节变化特征,午后14:00—17:00达到小时浓度峰值,超标日主要集中于5—10月;O3对环境空气质量综合指数贡献率逐年增加,北京、上海和广州O3贡献率年增长分别为1.9%、1.1%和0.8%。
英文摘要:
      Based on the O3 monitoring data in 74 cities from 2013 to 2016, a comprehensive discussion on the O3 concentration characteristics and variation trend was carried out. The results showed that the whole O3-8 h percentile concentrations were increasingly prominent and the higher percentile concentration had faster growth rate. Annual 95th percentile O3-8 h concentration was rising with a growth rate of 5.3 μg/m3,followed by the 90th percentile; O3 showed significant regional pollution characteristics, Beijing-Tianjin-Hebei and the surrounding area, Yangtze river delta, the Pearl River delta were three key regions having the most projecting O3 problems. Annual O3 nonattainment days were rising with a growth rate of 3 days/city. O3concentration had obvious diurnal and seasonal characteristics. O3 nonattainment days mainly occurred from May to October, and O3 diurnal peak concentration occurred at about 14:00 to 17:00. Annual growth rate of O3contribution to the comprehensive air quality index was rising, the growth rates of Beijing, Shanghai, Guangzhou were 1.9%,1.1% and 0.8% respectively.
查看全文  查看/发表评论  下载PDF阅读器