The impact of China's vehicle emissions on regional air quality in 2000 and 2020: a scenario analysis

Abstract

Abstract. The number of vehicles in China has been increasing rapidly. We evaluate the impact of current and possible future vehicle emissions from China on Asian air quality.

Comparison of emissions inventories of anthropogenic air pollutants and greenhouse gases in China

“…Many have researched the importance of on-road transport emissions on Beijing's Westerdahl et al, 2009) and China's air quality Walsh, 2007;Saikawa et al, 2011). We found significant differences in CO and NO x emissions in the transport sector, and here we analyze the differences for these emissions in more depth by focusing on both on-road and off-road transport emissions.…”

“…For REAS, the number of vehicles of each type (passenger cars, buses, light and heavy-duty trucks, and motorcycles) in 2000 was taken from Borken et al (2008) and extrapolated to 2008, using trends from the National Bureau of Statistics (2001Statistics ( -2009 (Kurokawa et al, 2013). Emission factors due to control strategies and policies in REAS stem from estimates in Borken et al (2008) and Wu et al (2011), as explained in Saikawa et al (2011). For EDGAR, the fleet distribution is based on the international statistics from the International Road Federation (IRF, 1990(IRF, , 2005(IRF, , 2007 which were analyzed in the framework of the EU "Quantify" project .…”

The challenge to NO<sub>x</sub> emission control for heavy-duty diesel vehicles in China

“…Such a significant underestimate in vehicular NO x emissions triggers an urgent need to re-evaluate and update the national emission inventory as well as other regional/international emission inventories (e.g., GAINS-Asia, INTEX-B, etc.) (GAINS-Asia, 2008;Saikawa, et al, 2011;Xing et al, 2011;Zhang et al, 2009). This effort will also provide a better understanding of the future modeling for ambient NO x concentration profiles as well as other relevant secondary pollutant profiles in the air (e.g., O 3 and nitrate particles).…”

Scenarios for vehicular air pollutant emissions abatement: a case study in Hangzhou, China

“…Some researchers have predicted that the vehicle population of China will increase more than 1470 million by the year 2030 (Zhang et al, 2010;Hao et al, 2011). The rapid vehicle increase has resulted in more and more serious problems (Zhang et al, 2008a), especially the degradation of air quality in urban areas (Saikawa et al, 2011). For example, carbon monoxide (CO) emission from motor vehicles contributed to 76.5% and 81.5% of the total air pollutants in Beijing and Hangzhou, respectively.…”