Emission inventories of NOx from commercial energy consumption in China, 1995-1998
Emission inventories of NOx from commercial energy consumption in China, 1995-1998
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DOI：
10.1021/es015601k
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发表时间：
2002-02-15
影响因子：
11.4
通讯作者：
Lu, YQ
中科院分区：
文献类型：
--
作者：
Hao, JM;Tian, HZ;Lu, YQ
氮氧化物（NOX）排放不仅会造成局部大气污染，还会造成酸雨、富营养化、对流层臭氧、细颗粒物、生物多样性丧失等区域性环境风险，因此受到广泛关注。本文根据工业能源消费量和不同行业、不同燃料的NOX排放因子，估算了中国近20年来NOX的人为排放总量。对1995 ~ 1998年全国31个省、7个经济行业、11种燃料的NOX排放清单进行了详细的评价和分析，给出了1998年全国各省NOX平均排放强度的分布。可以看出，计算的全国NOX排放总量从1980年的4.76 Mt迅速增加到1996年的峰值约12.03 Mt，年均增长率为6%。然而，与1996年的峰值相比，1997年和1998年的NOX排放量不仅没有增加，反而分别减少了0.37 Mt和0.85 Mt。简而言之，由能源使用引起的NOX排放主要集中在中国人口较多和工业化程度较高的地区，即，东部和东南部地区。这些结果表明，中国未来的NOX排放量可能不会像预期的那样高，这将有助于制定政策控制本地NOX污染以及减少东亚地区的酸雨和对流层臭氧。
Emissions of nitrogen oxides (NOX) in China are of great concern because of their impact on local air pollution as well as on regional environmental risks such as acid rain, eutrophication, tropospheric ozone, fine particulate matter, and loss of biodiversity. In this paper, total anthropogenic emissions of NOX in China during the past two decades are estimated on the basis of commercial energy consumption and NOX emission factors of different sectors and fuel types. Specifically, emission inventories of NOX from 31 provinces, 7 economic sectors, and 11 fuel types from 1995 to 1998 are evaluated and analyzed in detail, and the distribution of provincial-based average NOX emission intensity in 1998 is presented. It can be seen that the calculated national total emissions of NOX have rapidly increased from 4.76 Mt in 1980 to a peak value of about 12.03 Mt in 1996, with an average annual growth rate of 6%. However, instead of increasing, NOX emissions in 1997 and 1998 decreased by 0.37 Mt and 0.85 Mt, respectively, as compared to the peak in 1996. In short, NOX emissions caused by energy use are mainly concentrated in the more populated and industrialized areas of China, i.e., the Eastern Central and Southeastern areas. These results imply that China's NOX emissions in the future may not become as high as previously expected which will be helpful for policy making to control local NOX pollution as well as to reduce acid rain and tropospheric ozone in East Asia.