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Recent developments of anthropogenic air pollutant emission inventories in Guangdong province, China

机译:中国广东省人为空气污染物排放清单的最新发展

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摘要

Emission inventory (EI) requires continuous updating to improve its quality and reduce its uncertainty. In this study, recent developments on source classification, emission methods, emission factors and spatial-temporal surrogates in the Guangdong regional anthropogenic emission inventory are presented. The developments include: ~40 additional emission sources in a re-classified source classification system, >50 improved spatial and temporal surrogates, 85% of local/domestic emission factors used, and updated estimation methods of on-road mobile, marine, and solvent use sources. The developments were updated to the recent 2012-based high resolution emission inventories, and their results were compared with previous 2006- and 2010-based emission inventories. The results indicated: (1) The total SO2, NOx, CO, PM10, PM2.5, BC, OC, VOCs and NH3emissions in 2012 were 777.0kt, 1532.2kt, 7305.4kt, 1176.4kt, 480.9kt, 54.2kt, 79.9kt, 1255.1kt and 584.1kt, respectively, for Guangdong province, with higher emission densities observed in the central PRD region. (2) No great changes on source structures were found among three years, but their contributions varied. (3) SO2, PM10and PM2.5emissions showed downward trends, likely a result of strict control measures on power plant and industrial combustion sources. (4) NOxemission exhibited relatively stable levels in 2010 and 2012, but contributions from industrial, on-road and non-road mobile sources increased. (5) VOCs emissions showed an upward trend, mainly resulting from dramatically increased light-duty passenger car population and solvent use. (6) Spatial and temporal allocations were updated with constant improvements of spatial and temporal surrogates. (7) Uncertainty ranges of emission estimates were reduced, indicating that the 2012-based PRD regional EI are more reliable. The work shown in this study can be a reference example for other regions to continuously update their emission inventories.
机译:排放清单(EI)需要不断更新以提高其质量并减少不确定性。本研究介绍了广东地区人为排放清单中源分类,排放方法,排放因子和时空替代物的最新发展。发展包括:在重新分类的排放源分类系统中增加了约40个排放源,改进了超过50个的时空替代物,使用了85%的本地/国内排放因子,以及更新了道路移动,海洋和溶剂的估算方法使用资源。事态发展已更新为最近基于2012年的高分辨率排放清单,并将其结果与以前基于2006年和2010年的排放清单进行了比较。结果表明:(1)2012年的SO2,NOx,CO,PM10,PM2.5,BC,OC,VOC和NH3排放总量分别为777.0kt,1532.2kt,7305.4kt,1176.4kt,480.9kt,54.2kt,79.9广东省分别为kt,1255.1kt和584.1kt,在珠三角中部地区观测到更高的排放密度。 (2)在三年内,没有发现源结构的重大变化,但是它们的贡献各不相同。 (3)SO2,PM10和PM2.5排放量呈下降趋势,这可能是对电厂和工业燃烧源采取严格控制措施的结果。 (4)2010年和2012年,NOx排放量显示相对稳定,但来自工业,公路和非公路移动源的排放量有所增加。 (5)VOCs排放量呈上升趋势,主要是由于轻型乘用车数量和溶剂使用量的急剧增加所致。 (6)时空分配进行了更新,并不断改进时空替代方案。 (7)排放估算值的不确定性范围减小,表明基于2012年的PRD区域EI更可靠。本研究中显示的工作可以为其他地区不断更新其排放清单提供参考。

著录项

  • 来源
    《The Science of the Total Environment》 |2018年第15期|1080-1092|共13页
  • 作者单位

    College of Environment and Energy, South China University of Technology;

    College of Environment and Energy, South China University of Technology,College of Environment and Climate Research, Jinan University;

    College of Environment and Energy, South China University of Technology;

    College of Environment and Climate Research, Jinan University;

    College of Environment and Energy, South China University of Technology;

    College of Environment and Energy, South China University of Technology;

    College of Environment and Energy, South China University of Technology;

    College of Environment and Energy, South China University of Technology;

    College of Environment and Energy, South China University of Technology;

    College of Environment and Energy, South China University of Technology;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Emission inventory; Guangdong province; Update; Comparison; Uncertainty;

    机译:排放清单;广东省;更新;比较;不确定性;

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