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京津冀区域臭氧污染趋势及时空分布特征
Pollution Trends of Ozone and Its Characteristics of Temporal and Spatial Distribution in Beijing-Tianjin-Hebei Region
投稿时间:2016-09-12  修订日期:2016-09-26
DOI:10.19316/j.issn.1002-6002.2017.01.03
中文关键词:  京津冀  臭氧  时空分布
英文关键词:Beijing-Tianjin-Hebei region  ozone  temporal and spatial distribution
基金项目:
作者单位
程麟钧 中国地质大学(北京)水资源与环境学院, 北京 100083
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 
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 
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 
杨琦 中国地质大学(北京)水资源与环境学院, 北京 100083 
王业耀* 中国地质大学(北京)水资源与环境学院, 北京 100083
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:王业耀*  中国地质大学(北京)水资源与环境学院, 北京 100083;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  
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中文摘要:
      为研究京津冀区域的臭氧(O3)污染情况及其时空分布特征,对2013-2015年京津冀区域13个城市80个国家环境空气监测点位的监测数据进行了统计分析。结果表明:2013-2015年,京津冀区域O3污染状况整体呈加重趋势,其中2014年污染状况最为严重。13个城市中O3污染最严重的城市为北京和衡水,连续3年均超标,且处于上升态势中。区域内不同城市O3污染趋势并不相同。京津冀区域O3浓度变化呈明显的季节变化特征,春末和夏季的O3污染最严重。O3-8 h(臭氧日最大8 h均值)年均值的高值区主要分布在北京中北部、承德和衡水等,2013-2015年第90百分位O3-8 h的高值区均集中分布在北京。O3的浓度峰值时间要晚于NOx 2~5 h。O3在春、夏季呈单峰分布,白天15:00左右出现最大值,在秋、冬季浓度较低,全天波动不大。
英文摘要:
      To study the pollution distribution of ozone in Beijing-Tianjin-Hebei region, this paper analyzed the 2013-2015 monitoring data of 80 national ambient air monitoring sites in the regional 13 cities. The results showed:the whole ozone pollution trends of Beijing-Tianjin-Hebei region was getting worse in 2013-2015, where in 2014 the most serious pollution happened. The most polluted ozone cities were Beijing and Hengshui in 13 cities, which exceeded for three consecutive years and in an upward trend. Ozone pollution trends in different cities within the region were not the same. Ozone concentrations in Beijing-Tianjin-Hebei region had obvious seasonal characteristics. The worst ozone pollution appeared in late spring and summer. O3-8 h annual average high values mainly distributed in north-central Beijing, Chengde and Hengshui and other regions, O3-8 h 90th percentile concentrations of high-value areas were concentrated in Beijing area during 2013-2015. The concentration of ozone peak time was 2-5 h later than the nitrogen oxide. Ozone was unimodal distribution in spring and summer, maximum occurred during the day around 15:00, the concentrations were low in autumn and winter, and there was a small fluctuation range throughout the day.
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