• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Tenth International Conference on Modelling, Monitoring and Management of Air Pollution Jul, 2002 City of Segovia >A preliminary investigation of interaction between ozone and particulates in an oceanic temperate climate
【24h】

A preliminary investigation of interaction between ozone and particulates in an oceanic temperate climate

机译：海洋温带气候中臭氧与颗粒之间相互作用的初步研究

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Results from smog chamber studies indicate that some Ozone (O_3) loss occurs in the atmosphere through being adsorbed on the surface of particulate matter present in the atmosphere. However, the field measurements, which can provide better clues to what exactly happens in the real atmosphere is lacking. The present study is based on concurrent measurement of O_3 concentration, particulate concentration and meteorological data during summer and winter periods from three different sites in Auckland, New Zealand. Multivariate data analysis technique was used for quantification of the relationship between the two pollutants. Monitoring revealed that both O_3 and Coarse Particulate Matter (CPM) exhibit diurnal variation, while the Fine Particulate Matter (FPM) concentration does not show any distinct pattern with respect to the time of the day. FPM concentration is higher in winter and low in summer, while CPM follows a totally opposite seasonal pattern. There was a significant increase in the mass concentration of both pollutants (i.e. O_3 and particulates) when air mass passed over the Auckland city compared to its origin in the marine sector. It was found that the relationship between O_3 and particulate concentration varied among the three sites. Two of the sites (i.e. coastal and urban) showed no significant (positive or negative) relationship between ozone and particles (either FPM or CPM). For the third site (i.e. rural), it was found that CPM concentration played a significant role in determining variability in O_3 concentration. Potential reasons are suggested for this difference.
机译：烟雾室研究的结果表明，一些臭氧（O_3）的损失是通过吸附在大气中存在的颗粒物表面上而发生的。但是，缺乏能够提供更好的线索以了解实际大气中到底发生了什么的现场测量。本研究基于对夏季和冬季来自新西兰奥克兰三个不同地点的O_3浓度，颗粒物浓度和气象数据的同时测量。多变量数据分析技术用于量化两种污染物之间的关系。监测显示，O_3和粗颗粒物（CPM）均表现出昼夜变化，而细颗粒物（FPM）浓度相对于一天中的时间没有显示任何明显的变化。 FPM的浓度在冬季较高，而在夏季较低，而CPM则遵循完全相反的季节性模式。当空气质量流过奥克兰市时，两种污染物（即O_3和颗粒物）的质量浓度相比，其起源于海洋部门的数量都显着增加。发现三个位置之间的O_3与颗粒物浓度之间的关系有所不同。两个地点（即沿海和城市）显示臭氧与颗粒（FPM或CPM）之间没有显着（正或负）关系。对于第三个站点（即农村），发现CPM浓度在确定O_3浓度的变化中起着重要作用。建议为此存在差异的潜在原因。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号