Coverage and reliability of Chinese statistics regarding sulfur dioxide emissions during the late 1990s
Coverage and reliability of Chinese statistics regarding sulfur dioxide emissions during the late 1990s
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DOI：
10.1007/bf03353949
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发表时间：
2006
影响因子：
1.7
通讯作者：
R. Fujikura;S. Kaneko;H. Nakayama;N. Sawazu
中科院分区：
文献类型：
--
作者：
R. Fujikura;S. Kaneko;H. Nakayama;N. Sawazu
根据中国官方统计，二氧化硫排放量在20世纪90年代末大幅下降，然后再次上升。然而，一些研究人员对数据的可靠性表示担忧，二氧化硫排放量统计所代表的企业样本仅占中国工业总产值的三分之一，这可能导致排放量被低估。此外，1990年代后期的煤炭生产和消费可能由于出于政治动机的数字操纵而被低估，这一现象也可以部分解释所报告的二氧化硫排放量减少的原因。从煤炭供应方信息得出的煤炭硫含量一般高于用于计算官方统计排放量的需求方信息。与此同时，没有可靠的数据表明烟囱排放的脱硫得到了改善。所有这些都是低估中国排放量的潜在因素。
According to official Chinese statistics, sulfur dioxide emissions dropped significantly in the late 1990s before rising again. Some researchers have expressed concern over data reliability, however, and the sample of enterprises represented by sulfur dioxide emission statistics generates only one third of China’s industrial output, which may result in undercounting of emissions. In addition, coal production and consumption during the late 1990s may have been undercounted due to politically motivated manipulation of numbers, and this phenomenon may also partly explain the reported reductions in sulfur dioxide emissions. Coal sulfur content derived from coal supply-side information is generally found to be higher than from demand-side information used to calculate emissions for official statistics. Meanwhile, no solid data are available that demonstrate improvement of the desulfurization of smokestack emissions. All of these are potential factors in the underestimation of China’s emissions.