Trend in global black carbon emissions from 1960 to 2007.
Trend in global black carbon emissions from 1960 to 2007.
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DOI：
10.1021/es5021422
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发表时间：
2014-05
影响因子：
11.4
通讯作者：
Rong Wang;S. Tao;Huizhong Shen;Ye Huang;Han Chen;Y. Balkanski;O. Boucher;P. Ciais;G. Shen;Wei Li;Yanyan Zhang;Yuanchen Chen;N. Lin;S. Su;Bengang Li;Junfeng Liu;Wenxin Liu
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文献类型：
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作者：
Rong Wang;S. Tao;Huizhong Shen;Ye Huang;Han Chen;Y. Balkanski;O. Boucher;P. Ciais;G. Shen;Wei Li;Yanyan Zhang;Yuanchen Chen;N. Lin;S. Su;Bengang Li;Junfeng Liu;Wenxin Liu
黑碳(BC)在气候变化和对健康的影响方面都发挥着重要作用。尽管如此，BC排放量以及历史趋势与现有库存的高度不确定性有关。在本研究中，利用重新编制的燃油消耗量和排放系数数据集，估计了污染源1960-2007年的全球BC排放量。在此期间，年BC排放量从5.3(四分位数范围为3.4-8.5)增加到9.1(5.6-14.4)太克。我们的估计比之前的库存高出11-16%。在此期间，我们发现所有地区的BC排放强度都有所下降，特别是中国和印度。BC排放强度定义为单位能源生产中BC的排放量。燃烧技术的改进和燃料组成的变化导致了能源使用效率的提高，随后发电厂、住宅部门和交通运输部门的BC排放强度下降。另一方面，工业和农业部门的碳排放强度有所增加，这主要是由于发展中国家低效工业(焦炭和砖生产)的扩大以及发达国家在农业中越来越多地使用柴油。
Black carbon (BC) plays an important role in both climate change and health impact. Still, BC emissions as well as the historical trends are associated with high uncertainties in existing inventories. In the present study, global BC emissions from 1960 to 2007 were estimated for 64 sources, by using recompiled fuel consumption and emission factor data sets. Annual BC emissions had increased from 5.3 (3.4-8.5 as an interquartile range) to 9.1 (5.6-14.4) teragrams during this period. Our estimations are 11-16% higher than those in previous inventories. Over the period, we found that the BC emission intensity, defined as the amount of BC emitted per unit of energy production, had decreased for all the regions, especially China and India. Improvements in combustion technology and changes in fuel composition had led to an increase in energy use efficiency, and subsequently a decline of BC emission intensities in power plants, the residential sector, and transportation. On the other hand, the BC emission intensities had increased in the industrial and agricultural sectors, mainly due to an expansion of low-efficiency industry (coke and brick production) in developing countries and to an increasing usage of diesel in agriculture in developed countries.