Standardisation of Black Carbon aerosol metrics for air quality and climate modelling (STANBC)

黑碳（BC）有助于气候强迫，是一种影响健康的空气污染物。等效黑碳（eBC）质量浓度通常是用光吸收光度计实时测量的。由于对排放的变化非常敏感，eBC的质量浓度可能在未来作为煤烟样燃烧副产物的度量标准进行调节。然而，eBC质量和相关的气溶胶光吸收测量都没有标准化，可追溯性是不完整的，对不确定性的理解也很差。本项目将提供并建立气溶胶光吸收系数和质量吸收截面的新标准，两者的结合将产生eBC质量浓度。这些指标在EN16909元素碳（EC）质量浓度标准中没有涉及。

Black carbon (BC) contributes to climate forcing and is an air pollutant impacting health. Equivalent Black Carbon (eBC) mass concentrations are typically measured in real time with light absorption photometers. Being very sensitive to changes in emissions, eBC mass concentration might be regulated in the future as a metric for soot-like combustion by-products. However, neither eBC mass nor the related aerosol light absorption measurements have been standardised, traceability is incomplete and uncertainties are poorly understood. This project will provide and establish new standards for aerosol light absorption coefficient and mass absorption cross-section, whose combination leads to eBC mass concentration. These metrics are not addressed in the EN16909 standard on Elemental Carbon (EC) mass concentration.