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A comprehensive biomass burning emission inventory with high spatial and temporal resolution in China

Atmospheric chemistry and physics, 2017-02, Vol.17 (4), p.2839-2864 [Peer Reviewed Journal]

COPYRIGHT 2017 Copernicus GmbH ;Copyright Copernicus GmbH 2017 ;2017. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;ISSN: 1680-7324 ;ISSN: 1680-7316 ;EISSN: 1680-7324 ;DOI: 10.5194/acp-17-2839-2017

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Title:
A comprehensive biomass burning emission inventory with high spatial and temporal resolution in China
Author: Zhou, Ying ; Xing, Xiaofan ; Lang, Jianlei ; Chen, Dongsheng ; Cheng, Shuiyuan ; Wei, Lin ; Wei, Xiao ; Liu, Chao
Subjects: Air pollution ; Air quality ; Air quality models ; Animal wastes ; Atmospheric models ; Atmospheric pollution ; Benzene ; Biodiesel fuels ; Biomass ; Biomass burning ; Burning ; Carbon ; Cereal crops ; Climate effects ; Climatic conditions ; Consumption ; Corn ; Crop residues ; Crops ; Data ; Dominant species ; Economic development ; Emission analysis ; Emission inventories ; Emissions ; Environmental health ; Ethyl benzene ; Field investigations ; Fire point ; Forest fires ; Gases ; Geographic information systems ; Geographical information systems ; Grasslands ; Greenhouse effect ; Greenhouse gases ; Heavy metals ; Indoor air quality ; Industrialized nations ; Information systems ; Livestock ; Mercury ; Monthly variations ; Nitrogen compounds ; Nitrogen dioxide ; Nitrogen oxides ; Oxides ; Particulate matter ; Plant diversity ; Pollutants ; Pollution control ; Propylene ; Provinces ; Quality ; Regression analysis ; Resolution ; Rice ; Rural areas ; Satellite data ; Species ; Statistical analysis ; Straw ; Studies ; Temporal distribution ; Temporal resolution ; Toluene ; Wheat ; Xylene
Is Part Of: Atmospheric chemistry and physics, 2017-02, Vol.17 (4), p.2839-2864
Description: Biomass burning injects many different gases and aerosols into the atmosphere that could have a harmful effect on air quality, climate, and human health. In this study, a comprehensive biomass burning emission inventory including domestic and in-field straw burning, firewood burning, livestock excrement burning, and forest and grassland fires is presented, which was developed for mainland China in 2012 based on county-level activity data, satellite data, and updated source-specific emission factors (EFs). The emission inventory within a 1  ×  1 km2 grid was generated using geographical information system (GIS) technology according to source-based spatial surrogates. A range of key information related to emission estimation (e.g. province-specific proportion of domestic and in-field straw burning, detailed firewood burning quantities, uneven temporal distribution coefficient) was obtained from field investigation, systematic combing of the latest research, and regression analysis of statistical data. The established emission inventory includes the major precursors of complex pollution, greenhouse gases, and heavy metal released from biomass burning. The results show that the emissions of SO2, NOx, PM10, PM2.5, NMVOC, NH3, CO, EC, OC, CO2, CH4, and Hg in 2012 are 336.8 Gg, 990.7 Gg, 3728.3 Gg, 3526.7 Gg, 3474.2 Gg, 401.2 Gg, 34 380.4 Gg, 369.7 Gg, 1189.5 Gg, 675 299.0 Gg, 2092.4 Gg, and 4.12 Mg, respectively. Domestic straw burning, in-field straw burning, and firewood burning are identified as the dominant biomass burning sources. The largest contributing source is different for various pollutants. Domestic straw burning is the largest source of biomass burning emissions for all the pollutants considered, except for NH3, EC (firewood), and NOx (in-field straw). Corn, rice, and wheat represent the major crop straws. The combined emission of these three straw types accounts for 80 % of the total straw-burned emissions for each specific pollutant mentioned in this study. As for the straw burning emission of various crops, corn straw burning has the largest contribution to all of the pollutants considered, except for CH4; rice straw burning has highest contribution to CH4 and the second largest contribution to other pollutants, except for SO2, OC, and Hg; wheat straw burning is the second largest contributor to SO2, OC, and Hg and the third largest contributor to other pollutants. Heilongjiang, Shandong, and Henan provinces located in the north-eastern and central-southern regions of China have higher emissions compared to other provinces in China. Gridded emissions, which were obtained through spatial allocation based on the gridded rural population and fire point data from emission inventories at county resolution, could better represent the actual situation. High biomass burning emissions are concentrated in the areas with more agricultural and rural activity. The months of April, May, June, and October account for 65 % of emissions from in-field crop residue burning, while, regarding EC, the emissions in January, February, October, November, and December are relatively higher than other months due to biomass domestic burning in heating season. There are regional differences in the monthly variations of emissions due to the diversity of main planted crops and climatic conditions. Furthermore, PM2.5 component results showed that OC, Cl−, EC, K+, NH4+, elemental K, and SO42− are the main PM2.5 species, accounting for 80 % of the total emissions. The species with relatively high contribution to NMVOC emission include ethylene, propylene, toluene, mp-xylene, and ethyl benzene, which are key species for the formation of secondary air pollution. The detailed biomass burning emission inventory developed by this study could provide useful information for air-quality modelling and could support the development of appropriate pollution-control strategies.
Publisher: Katlenburg-Lindau: Copernicus GmbH
Language: English
Identifier: ISSN: 1680-7324
ISSN: 1680-7316
EISSN: 1680-7324
DOI: 10.5194/acp-17-2839-2017
Source: GFMER Free Medical Journals
Alma/SFX Local Collection
ProQuest Central
DOAJ Directory of Open Access Journals

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A comprehensive biomass burning emission inventory with high spatial and temporal resolution in China

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