High-resolution and multi-year estimation of emissions from open biomass burning in Northeast China during 2001–2017

Shi, Yusheng; Gong, Shiyao; Zang, Shuying; Zhao, Yue; Wang, Wen; Lv, Zhenghan; Matsunaga, Tsuneo; Yamaguchi, Yasushi; Bai, Yanbing

doi:10.1016/j.jclepro.2021.127496

Cited by 23 publications

(21 citation statements)

References 62 publications

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“…Previous studies , have revealed that the low efficiency of household combustion makes the residential sector one of the largest emitters of CA in these regions. Additionally, open BB activities, mainly agricultural residues, further increase the concentrations of CA . Based on the fire spots displayed in Figure and previous studies, the contribution of BB sources at LA and JS might be attributed to higher emission intensities from forest and shrubland burning.…”

Section: Resultsmentioning

confidence: 59%

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Fossil and Nonfossil Sources of Winter Organic Aerosols in the Regional Background Atmosphere of China

Zhang,

Cao,

Song

et al. 2024

Environ. Sci. Technol.

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Carbonaceous aerosols (CA) from anthropogenic emissions have been significantly reduced in urban China in recent years. However, the relative contributions of fossil and nonfossil sources to CA in rural and background regions of China remain unclear. In this study, the sources of different carbonaceous fractions in fine aerosols (PM2.5) from five background sites of the China Meteorological Administration Atmosphere Watch Network during the winter of 2019 and 2020 were quantified using radiocarbon (14C) and organic markers. The results showed that nonfossil sources contributed 44–69% to total carbon at these five background sites. Fossil fuel combustion was the predominant source of elemental carbon at all sites (73 ± 12%). Nonfossil sources dominated organic carbon (OC) in these background regions (61 ± 13%), with biomass burning or biogenic-derived secondary organic carbon (SOC) as the most important contributors. However, the relative fossil fuel source to OC in China (39 ± 13%) still exceeds those at other regional/background sites in Asia, Europe, and the USA. SOC dominated the fossil fuel-derived OC, highlighting the impact of regional transport from anthropogenic sources on background aerosol levels. It is therefore imperative to develop and implement aerosol reduction policies and technologies tailored to both the anthropogenic and biogenic emissions to mitigate the environmental and health risks of aerosol pollution across China.

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Section: Resultsmentioning

confidence: 59%

“…Additionally, open BB activities, mainly agricultural residues, further increase the concentrations of CA. 76 Based on the fire spots displayed in Figure 1 and previous studies, 77 the contribution of BB sources at LA and JS might be attributed to higher emission intensities from forest and shrubland burning.…”

Section: ■ Materials and Methodsmentioning

confidence: 77%

Fossil and Nonfossil Sources of Winter Organic Aerosols in the Regional Background Atmosphere of China

Zhang,

Cao,

Song

et al. 2024

Environ. Sci. Technol.

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“…Among them, the amount of GHGs in each grid depended on the point source activity data. For other point sources without actual geographical coordinates available, their emissions were assigned to grid cells by surrogates that were similar to their actual geographical position and activity level, for example, the geographical positions of indoor burning and open burning were surrogated by rural residential areas and observational fire data from satellite [36], respectively. This method was also adopted in the spatial allocation of other emission sources, such as fossil fuel combustion of agriculture, forestry, animal husbandry and fishery.…”

Section: Spatial Allocationmentioning

confidence: 99%

Updating High-Resolution Emission Inventory to Unveil the Characteristics of Greenhouse Gases Emissions in Shandong Province, China

Du¹,

Jiang²,

Gao³

et al. 2023

Pol. J. Environ. Stud.

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“…CE is crucial to estimate emissions from fires accurately. At present, in the research of fire emission estimation, CE is often set as an empirical value (Wooster et al, 2005;Guo et al, 2020;Shi et al, 2021), which could cause a potential error in fire emission estimation (Sá et al, 2005). Another method to obtain CE has two stages viz.…”

Section: Limitationmentioning

confidence: 99%

High-resolution estimation of air pollutant emissions from vegetation burning in China (2000–2018)

Yang

Jiang

2022

Front. Environ. Sci.

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Vegetation burning in China contributes significantly to atmospheric pollution and climate change. However, most recent studies have focused on forest fires, ignoring grassland fires. Besides, there was a generally high uncertainty in the estimated fire emission because of missing small fire data and limited local vegetation data. This study employed high-resolution burned area data (GABAM, global annual burned area map) and land cover data to develop a high-resolution (30 m) emission inventory of vegetation burning in China in 2000, 2005, 2010, 2015, and 2018. Eleven pollutants were estimated, including CO, CH4, NOx, non-methane volatile organic carbon (NMVOC), SO2, NH3, PM2.5, PM10, organic carbon (OC), black carbon (BC), and CO2. The cumulative pollutant emissions from the temporal and spatial variation analyses of the burned area and emissions reached 1.21 × 105 Gg. Specifically, CO2 was the largest emission, with a mean annual emission of 2.25 × 104 Gg, accounting for 92.46% of the total emissions. CO was the second-largest emission, with a mean annual emission of 1.13 × 103 Gg. PM10 and PM2.5 emissions were also relatively high, with a mean annual emission of 200.5 and 140.3 Gg, respectively, with that of NMVOC (159.24 Gg) in between. The emissions of other pollutants, including OC, NOx, CH4, NH3, SO2, and BC, were relatively low. The South, Southwest, East, and Northeast of China contributed the most emissions. Shrubland contributed the most emissions for different vegetation types, followed by forest and grassland. Consequently, this study provides scientific evidence to support understanding the influence of fire on the local environment and policy on China’s air pollution control.

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High-resolution and multi-year estimation of emissions from open biomass burning in Northeast China during 2001–2017

Cited by 23 publications

References 62 publications

Fossil and Nonfossil Sources of Winter Organic Aerosols in the Regional Background Atmosphere of China

Fossil and Nonfossil Sources of Winter Organic Aerosols in the Regional Background Atmosphere of China

Updating High-Resolution Emission Inventory to Unveil the Characteristics of Greenhouse Gases Emissions in Shandong Province, China

High-resolution estimation of air pollutant emissions from vegetation burning in China (2000–2018)

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