| 固定污染源排气中PM2.5采样方法综述 |
| 摘要点击 4754 全文点击 2155 投稿时间：2013-09-16 修订日期：2013-11-11 |
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| 中文关键词 固定污染源 细颗粒物（PM2.5） 惯性撞击分级器 虚拟撞击器 稀释采样 |
| 英文关键词 stationary source PM2.5 impactor virtual impactor dilution sampling |
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| 中文摘要 |
| 我国新的环境空气质量标准已于2012年颁布并将自2016年起全面实施. 为使新标准规定的细颗粒物（PM2.5）达标，各地需对固定污染源排气中PM2.5进行监测和控制，但目前国内尚无固定源PM2.5采样标准方法. 本文系统地介绍了国内外固定源PM2.5采样方法及相应的国际标准，包括直接采样法和稀释采样法，并分析了这些方法的优缺点及用于我国固定源PM2.5测量的可行性. 为了便于环境管理和监测，建议确立基于虚拟惯性撞击原理的烟道内直接采样方法为标准方法，用于测定固定源排气中的可捕集PM2.5；为了评估固定源PM2.5排放对大气环境质量和健康的影响，建议同时确立以烟道外稀释采样为基础的标准方法，用于测定固定源排气中包括可捕集和可凝结的PM2.5. |
| 英文摘要 |
| The new China national ambient air quality standard has been published in 2012 and will be implemented in 2016. To meet the requirements in this new standard, monitoring and controlling PM2.5 emission from stationary sources are very important. However, so far there is no national standard method on sampling PM2.5 from stationary sources. Different sampling methods for PM2.5 from stationary sources and relevant international standards were reviewed in this study. It includes the methods for PM2.5 sampling in flue gas and the methods for PM2.5 sampling after dilution. Both advantages and disadvantages of these sampling methods were discussed. For environmental management, the method for PM2.5 sampling in flue gas such as impactor and virtual impactor was suggested as a standard to determine filterable PM2.5. To evaluate environmental and health effects of PM2.5 from stationary sources, standard dilution method for sampling of total PM2.5 should be established. |
