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| 包头市大气臭氧污染特征分析 |
| Characteristics of Ozone Pollution in the Atmosphere of Baotou |
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| DOI： |
| 中文关键词: 臭氧 臭氧前体物 污染特征 包头 |
| 英文关键词: Ozone Ozone precursors Pollution characteristic Baotou |
| 基金项目:内蒙古自治区自然科学基金资助项目（2018MS02001）；〖JP〗环保公益性行业科研专项基金资助项目(201509020) |
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| 中文摘要: |
| 利用包头市2015年环境空气自动监测数据，分析包头市臭氧（O3）时空分布特征。结果表明:2015年全市O3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O3污染问题突出。白天太阳辐射较强，O3浓度明显高于夜间。夏季O3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。O3前体物浓度采暖季高于非采暖季，O3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O3浓度高于其他点位。 |
| 英文摘要: |
| 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. |
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