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杭州市臭氧污染特征及过程分析
Characteristics and Process Analysis of Ozone Pollution in Hangzhou
投稿时间:2018-03-13  修订日期:2018-09-25
DOI:10.19316/j.issn.1002-6002.2019.03.11
中文关键词:  杭州  臭氧  时间变化  空间分布  过程分析
英文关键词:Hangzhou  ozone  temporal variation  spatial distribution  process analysis
基金项目:2017年杭州市农业与社会发展科研主动设计项目(20172016A07)
作者单位
陈超 杭州市环境保护科学研究院, 浙江 杭州310005 
林旭 杭州市环境监测中心站, 浙江 杭州310007 
叶辉 杭州市环境监测中心站, 浙江 杭州310007 
严仁嫦 杭州市环境监测中心站, 浙江 杭州310007 
祁晓婷 南京科略环境科技有限责任公司, 江苏 南京211800 
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中文摘要:
      利用2013—2016年杭州市国控点臭氧观测资料,讨论了杭州市臭氧时空变化特征,并对一次臭氧高浓度过程进行分析。结果显示,近年来杭州市臭氧浓度以10.3%的升幅渐增,增幅大于北京、上海、广州等城市。千岛湖背景点及位于城区的朝晖五区、下沙、西溪站点臭氧浓度月变化存在2个峰值,第一峰值出现在5月,受降水、温度影响次峰值出现在8—10月;夜间臭氧浓度背景点高于城区点。杭州市10个国控站点臭氧浓度相对标准偏差逐年减小,臭氧污染已呈区域性,城东为重污染区域。2015年8月出现的一次臭氧重污染过程主要是受副热带高压控制下和台风外围的影响,导致杭州市朝晖五区站点臭氧浓度高达228 μg/m3,台风登陆后得以缓解。
英文摘要:
      Temporal and spatial variations characteristics of ozone concentration in Hangzhou were analyzed by ozone observation data from national control stations from 2013 to 2016. A process with high ozone pollution was analyzed. The results showed that the ozone concentration in Hangzhou has been gradually increased in recent years, the increase rate was greater than Beijing, Shanghai and Guangzhou. There are two peaks in the monthly change of ozone concentration at Qiandao Lake background station and Zhaohui, Xiasha, Xixi urban stations,the first peak occurred in May, and the secondary peak affected by precipitation and temperature appeared from August to October. Ozone concentration of Qiandao Lake background station at night was higher than the urban stations. The RSD of ozone concentration at stations decreased every year, ozone pollution has been regional, and the eastern part of urban has been a heavily polluted area.Under the influence of the subtropical high and the typhoon periphery, ozone concentration was up to 228 μg/m3 in Zhaohui station in August 2015, as the typhoon landing, ozone pollution was alleviated.
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