Study On Temporal-Spatial Characteristic And Control Strategy Of Industrial Emissions Of Volatile Organic Compounds In China

In recent years, the ambiemt concentrations of volatile organic compounds (VOCs) hasbeen greatly evaluated, and photochemical air pollution characterized by high ozone levelwas frequently observerd in the continuous development regions and city clusters in China,which exert negative influences upon human and atmospheric environment.Thereby,researchon the emission source and its VOCs emission characteristic as well as temperal-spatialdistribution are crucial for atmospheric chemistry models study and the control strategymaking for ozone pollution.For these reasons, this study carry out research on the industrialVOCs emission characteristic and its historical emission trends, temperal-sptial distributionpattern, future emission projection, and finally control countermeasures, and the mainresearch contents and results are as follows:(1) Based on the source-tracing method and its soure classification system, and theactivity data obtained from stastical literature and industrial associations, as well as theemission factors determined after reviewing numerous literatuere, a set of method wasdeveloped to establish a VOCs emission inventory of industrial sector in China.Based onthis method, an emission inventory covering the1980-2010time period was estimated.During1980-2010, the industrial emission trends were experiencing a two-stage develop-ment as1980-2000was stable development period and2000-2010was fast developmentperiod. In1980, the VOCs emission was determined to be1.15Tg, and it was increased to13.35Tg in2010.The source of “use of VOCs-containing products”was the dominantindustrial source,emiting57.4%of total emission in2010; Shandong, Jiangsu, Guangdong,Zhejiang contributed38.3%of emission in China.(2) A high-resoluton temperal and spatial industrial emission inventory was deve-loped by investigation of of industrial activity time coefficients and by using populationdesensity as sptial surrogate opproaches with the aid of GIS techonology. Industrial VOCsemission was obseaved mostly during October to December, and was concentrated in cityclusters of the estern, southern and northern of China.(3)By appling the scenario method, a set of designed control scenarios were developedto predict the emission trends during the years between2010and2020. In the basis scenario,the emission was dramatically increased to23.9Tg. In the modrate scenario, it was21.1Tg.In the advanced scenario was decreased to17.0Tg, in which the reduction efficency was29.1percent with comparing with the basis scenario.(4) Through carring out a comprehensive investigation of VOCs control laws, rules and regulations in US, Europe and Janpan and especially analyzing the relative laws andregulations of printing industry, paint-used industries and oil refinery industry, strengthensource monitoring and compile a series of industrial VOCs emission standard as well asrelated control measures were given as the basic suggestions on launching industrial VOCscontrol work in China.