碳质气溶胶标准物质研究进展与方向

    Research Progress and Direction of Carbonaceous Aerosol Reference Materials

    • 摘要: 碳质气溶胶对气候与环境污染均具有重要影响,对碳质气溶胶的准确测量能够有效降低气溶胶辐射强迫评估以及大气来源解析等结果的不确定性,进一步为国内外制定相应的应对气候变化及减排的政策提供科学依据。本文综述了国内外碳质气溶胶的测量方法及影响因素,重点对现有标准方法及标准物质的研究进展与不足进行梳理总结,指出了碳质气溶胶标准物质研制方面的空白与需求。在此基础上,本文进一步从标准物质溯源性、有机碳元素碳典型代表物质的选取、OC/EC混合标准物质的配置以及碳酸盐碳的影响等多个方面指出了未来的研究方向和难点,为碳质气溶胶标准物质的深入研究提供参考。

       

      Abstract: Carbonaceous aerosols have a significant impact on climate change and environmental pollution. The accurate measurement of carbonaceous aerosols can effectively reduce the uncertainty of aerosol radiative forcing estimation and atmospheric source apportionment, and further provide scientific support for government control policies to address climate change and reduction of source emission. This paper reviews the measurement methods and influencing factors of carbonaceous aerosols at home and abroad, focuses on the research progress and limitations of existing standard protocols and reference materials, and points out the gaps and needs in the development of carbonaceous aerosol reference materials. On this basis, this paper further proposes future research directions and difficulties from various aspects, including the traceability of reference materials, the selection of representative species of organic carbon and elemental carbon, the configuration of OC/EC mixed reference materials, and the impact of carbonate carbon, which provide references for the in-depth research of carbonaceous aerosol reference materials.

       

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