摘要
利用包头市2015年环境空气自动监测数据,分析包头市臭氧(O_3)时空分布特征。结果表明:2015年全市O_3日最大8 h均值有26 d超过《环境空气质量标准》(GB 3095—2012)二级标准限值,且主要出现在6—8月,夏季O_3污染问题突出。白天太阳辐射较强,O_3浓度明显高于夜间。夏季O_3浓度达到峰值的时间比冬季早1 h,这与夏季日出时间比冬季早有关。O_3前体物浓度采暖季高于非采暖季,O_3浓度呈相反规律。东河鸿龙湾离城区相对较远,颗粒物浓度低,太阳辐射较强,致使O_3浓度高于其他点位。
Based on automatic monitoring date in Baotou during 2015, the characteristics of ozone in air were analyzed. The results showed that there were 26 days of maximum 8-hour average of ozone over the secondary standard limit of ambient air quality standards (GB 3095-2012), mainly through June to August, indicating heavy ozone pollution in summer. The concentration of ozone during daytime significantly higher than that at nighttime. The peak time in summer was earlier than that in winter due to the early sunrise. In contrast to ozone, the concentration of ozone precursors were higher during heating period than that in non-heating period. The concentration of ozone in Donghehonglongwan site was higher than that in other sites for it was far from urban, where the particulate concentration was low and sun radiation was strong.
作者
周海军
樊庆云
卢振国
张军
刘涛
目仁更
ZHOU Hai-jun;FAN Qing-yun;LU Zhen-guo;ZHANG Jun;LIU Tao;MU Ren-geng(College of Geographical Sciences, Inner Mongolia Normal University, Hohhot, Inner Mongolia 010022, China;Inner Mongolia Key Laboratory of Mongolian Plateau Environment and Global Change, Hohhot, Inner Mongolia 010022, China;Inner Mongolia Autonomous Region Wetland Restoration Engineering Laboratory, Hohhot, Inner Mongolia 010022, China;Environmental Monitoring Center of Inner Mongolia, Hohhot, Inner Mongolia 010011, China;Environmental Monitoring Station of Baotou, Baotou, Inner Mongolia 014010, China)
出处
《环境监测管理与技术》
CSCD
2019年第1期19-23,共5页
The Administration and Technique of Environmental Monitoring
基金
内蒙古自治区自然科学基金资助项目(2018MS02001)
环保公益性行业科研专项基金资助项目(201509020)
关键词
臭氧
臭氧前体物
污染特征
包头
Ozone
Ozone precursors
Pollution characteristic
Baotou
