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上海臭氧及前体物变化特征与相关性研究
Analysis on Concentration Variety Characteristics of Ozone and Correlations with its Precursors in Shanghai
投稿时间:2011-01-10  修订日期:2011-04-07
DOI:
中文关键词:  城市光化学污染  臭氧  前体物  OX  NO2光解速率
英文关键词:Urban photochemical pollution  Ozone  Precursors  OX  NO2 photolysis rate
基金项目:
作者单位
陈宜然 上海市环境科学研究院, 上海 200233 
陈长虹 上海市环境科学研究院, 上海 200233 
王红丽 上海市环境科学研究院, 上海 200233 
李莉 上海市环境科学研究院, 上海 200233 
黄海英 上海市环境科学研究院, 上海 200233 
黄成 上海市环境科学研究院, 上海 200233 
陈明华 上海市环境科学研究院, 上海 200233 
张钢锋 上海市环境科学研究院, 上海 200233 
周敏 华东理工大学, 上海 200237 
苏雷燕 华东理工大学, 上海 200237 
乔月珍 华东理工大学, 上海 200237 
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中文摘要:
      于2010年1~12月期间,在上海城区内采用在线连续观测,分析该地区近地臭氧与其前体物的季节变化规律及相关性,探讨了臭氧浓度与OX和NO2光解速率之间的关系。结果表明,观测期间,上海地区O3总超标天数为13天,超标率为3.56%。O3浓度变化呈现明显的秋冬低、春夏高的季节变化。O3浓度日变化规律呈典型单峰变化,O3各前体物呈双峰形分布,冬季O3与NOX的相关性最强。对OX的贡献中,秋冬以NO2为主,春夏以O3为主;夜间以NO2为主,白天以O3为主。臭氧浓度与OX和NO2光解速率变化规律基本一致。
英文摘要:
      Continuous monitoring was conducted during January to December 2010 in urban area of Shanghai, to analyze the seasonal variation of troposphere ozone concentration and correlations with its precursors. Results show that the frequency of ozone concentration higher than 93ppbv (GB3095-1996) during this period is 3.56%. Concentration of ozone is relatively high in spring and summer, while low in autumn and winter. The diurnal variation of ozone concentration show a clear cycle with one peak at noon, while its precursors have two peaks. NO2 is the major component of OX in autumn and winter while ozone accounts for the majority of OX in spring and summer, in the meantime, ozone dominates in daytime and NO2 at night. Variation of ozone concentration complies with those of OX concentration and NO2 photolysis rate.
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