Abstract
An industrial sector-based source volatile organic compounds (VOCs) emission inventory was developed for the year 2011 in China with the use of ‘emission factor method’. Based on the concept of source-tracing and a ‘bottom-up’ approach, it is estimated that the total emissions of industrial VOCs were 15.8 Tg for the year 2011, 17.7% of which came from production of VOCs, 8.4% came from storage and transport, 14.2% came from industrial processes using VOCs as raw materials, and 59.7% came from use of VOCs-containing products. Industrial VOCs emissions in East China were the largest contributors, comprising 40% of total. Four kinds of sources including furniture manufacturing, petroleum refining, machinery equipment manufacturing and printing industry took up 53.8% of total emissions. Therefore, more efficient VOCs control equipment should be paid attention to and promoted. A quantitative approach, the bootstrap simulation and Monte Carlo sampling, was used to analyze uncertainties, there is relatively medium uncertainty with an error of –42% to +71%, ranging from 9.2 to 27.2 Tg on the 95% confidence interval. To reduce VOCs emission inventory uncertainties requires giving priority to research on conducting more measurements of key sources. It’s imperative to establish domestic emission factor database.
Highlights
Based on the concept of source-tracing and a ‘bottom-up’ approach, it is estimated that the total emissions of industrial volatile organic compounds (VOCs) were 15.8 Tg for the year 2011, 17.7% of which came from production of VOCs, 8.4% came from storage and transport, 14.2% came from industrial processes using VOCs as raw materials, and 59.7% came from use of VOCs-containing products
Industrial VOCs emissions for the year 2011 in China were 15.8 Tg, 17.7% of which came from production of VOCs, 8.4% came from storage and transport, 14.2% came from industrial processes using VOCs as raw materials, and 59.7% came from use of VOCs-containing products
Industrial sector-based source VOCs emissions inventory was developed for the year 2011 in China with the use of ‘emission factor method’, adopting a ‘bottom-up’ approach based on local source information
Summary
With the development of the economy, the complex and regional air pollution issues such as high ozone concentration, photochemical smog and haze caused by fine particles have become the most crucial topics for atmospheric environment research all over the world (Chameides et al, 1999; Chan and Yaom, 2008; Shao et al, 2009; Zhao et al, 2009; Von Schneidemesser et al, 2010; Li et al, 2011; Ling et al, 2011; Wang and Hao, 2012; Xue et al, 2013; Huang et al, 2014). Several VOCs emission inventories have been established in China at different scales since recent decades These VOCs inventories covered areas as large as the national scales (Wang et al, 2005; Liu et al, 2008; Wei et al, 2008; Chen et al, 2012; Cao et al, 2010; Yang, 2012; Streets et al, 2006) and down to regional (Fu et al, 2013; Huang et al, 2011; Liu et al, 2008; Lu et al, 2013; Streets et al, 2006; Zhao et al, 2012; Zheng et al, 2009a; Zheng et al, 2009b; Zheng et al, 2010; Yu et al, 2011; Zheng et al, 2009c) and urban levels(Cai et al, 2010; He et al, 2013). Uncertainty in these inventories was rarely discussed or assessed in a qualitative way except few researchers
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