Emission inventory and trends of NO x for China, 2000–2020

Abstract

Abstract:The rapid growth of NO x emissions in China is mainly due to intensive fossil fuel consumption. In order to control NO x emissions, a multiyear NO x emission inventory was established by a bottom-up approach for the period 2000-2010. The results showed that NO x emissions increased by 2.1 times from 11.81 million tons (Mt) in 2000 to 24.33 Mt in 2010. We found that NO x emissions had exceeded SO 2 emissions in 2009 by comparison with their emission trends. We also found that the unbalanced NO x emissions in Eastern China and Western China are mainly due to the different gross regional product and industrial structure. Accounting for 70% of total energy consumption in China, coal is the largest NO x emission source among all the fossil fuels. In addition, the increased use of diesel and gasoline has spurred the increase of NO x emissions from the transportation sector. Manufacturing, electricity production, and transportation together composed about 90% of the national NO x emissions. Meanwhile, energy consumption and NO x emissions in China are predicted to be 3908.5 Mt standard coal equivalent (SCE) and 19.7 Mt in 2020 with this scenario analysis, respectively. To achieve a desired NO x reduction target, China should take strict measures to control NO x emissions, such as improvement in reduction technology, promulgation of new emission standards, and joint control by various Chinese provinces.

Ship-based MAX-DOAS measurements of tropospheric NO<sub>2</sub>, SO<sub>2</sub>, and HCHO distribution along the Yangtze River

“…In Jiangsu province, a higher contribution from power generation to NO 2 level was found, which is mainly due to large number of power plant located along the Yangtze River in Jiangsu province. The NO x emission over the eastern China, including Jiangsu province (15.41 t/(km 2 ·y)) (Shi et al, 2014), is more intensive than other parts of China. In addition, Jiangsu province is one of the province in China with maximum annual NO x emissions from coal-fired power 395 plants (Zhao et al, 2008;Wang et al, 2012a).…”

“…Industrial sources (including power plants, other fuel combustion facilities, and non-combustion processes) and vehicle emissions are the two major contributors, which together composed about 90% of the total anthropogenic NO x emissions in China (Huang et al, 2011;Shi et al, 2014). Understanding the individual contributions of industrial sources and vehicle exhaust to ambient NO 2 is important for designing suitable emission control strategies in 360…”

Air Pollution Inequality and Its Sources in SO2 and NOX Emissions among Chinese Provinces from 2006 to 2015

“…To measure vehicle population, we consider the number of urban vehicles (passenger vehicles, trucks, and other vehicles) which have a registered license. Gasoline consumption by vehicles has dramatically increased in proportion to the growth of vehicle population, which results in more NO X emission [55,63]. The China Vehicle Emission Control Annual Report [64] announced the gasoline-fueled vehicles accounted for 81.3% of motor vehicles and were responsible for 39% of NO X emission by the end of 2009.…”

Estimation of NOxEmission from Fossil Fuel Consumption in China for the Period 1980-2012

“…NO x emission of diesel and gasoline combustion has increased from 20.94×10 4 There wasn't official NO x emission statistic data in China until 2006, in order to verify the data validity of this paper, we contrasted the NO x emission of relevant literature and listed them in fig.4, among them, data of 2012 was from National Environmental Statistic year book (2013), data of 1980, 1985, 1995 was from Tian hezhong(2005) [5], data of 1990 from Wang wenxing(1996) [9], data of 2000 and 2005 was from Shi Yun (2014) [7]. Although data source and method was different, NO x emission had same increase trend and had a little difference both in this paper and other researchers, which was less than 10% except data of 2000 and 2005.…”

“…For instance, D.G. Streets(2000) [7]. These study focus more on short period or annual emission and pay no more attention to spatial distribution variation of NO x emission.…”