Collective impacts of biomass burning and synoptic weather on surface PM2.5 and CO in Northeast China

Li, Yichen; Liu, Jane; Han, Han; Zhao, Tianliang; Zhang, Xun; Zhuang, Bingliang; Wang, Tijian; Chen, Huimin; Wu, Yulie; Li, Mengmeng

doi:10.1016/j.atmosenv.2019.05.062

Cited by 41 publications

(17 citation statements)

References 73 publications

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“…Zheng et al [24] stated that CO from chemical production, as well as from oceanic and biogenic sources changes a little on a global scale. In contrast, atmospheric transport play a confounding role in modulating the CO trends in a receptor region [5,34,56]. Zheng et al [24] identified a declining trend in the global CO budget in 2000-2017, driven by reduced anthropogenic emissions in the US, Europe, and China, as well as by reduced biomass burning emissions globally.…”

Section: Impacts Of Biomass Burning On the Interannual Variation And mentioning

confidence: 99%

Satellite-Observed Variations and Trends in Carbon Monoxide over Asia and Their Sensitivities to Biomass Burning

et al. 2020

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As the carbon monoxide (CO) total column over Asia is among the highest in the world, it is important to characterize its variations in space and time. Using Measurements of Pollution in the Troposphere (MOPITT) and Atmospheric InfraRed Sounder (AIRS) satellite data, the variations and trends in CO total column over Asia and its seven subregions during 2003–2017 are investigated in this study. The CO total column in Asia is higher in spring and winter than in summer and autumn. The seasonal maximum and minimum are in spring and summer respectively in the regional mean over Asia, varying between land and oceans, as well as among the subregions. The CO total column in Asia shows strong interannual variation, with a regional mean coefficient of variation of 5.8% in MOPITT data. From 2003 to 2017, the annual mean of CO total column over Asia decreased significantly at a rate of (0.58 ± 0.15)% per year (or −(0.11 ± 0.03) × 1017 molecules cm−2 per year) in MOPITT data, resulting from significant CO decreases in winter, summer, and spring. In most of the subregions, significant decreasing trends in CO total column are also observed, more obviously over areas with high CO total column, including eastern regions of China and the Sichuan Basin. The regional decreasing trends in these areas are over 1% per year. Over the entire Asia, and in fire-prone subregions including South Siberia, Indo-China Peninsula, and Indonesia, we found significant correlations between the MOPITT CO total column and the fire counts from the Moderate Resolution Imaging Spectroradiometer (MODIS). The variations in MODIS fire counts may explain 58%, 60%, 36%, and 71% of the interannual variation in CO total column in Asia and these three subregions, respectively. Over different land cover types, the variations in biomass burning may explain 62%, 52%, and 31% of the interannual variation in CO total column, respectively, over the forest, grassland, and shrubland in Asia. Extremes in CO total column in Asia can be largely explained by the extreme fire events, such as the fires over Siberia in 2003 and 2012 and over Indonesia in 2006 and 2015. The significant decreasing trends in MODIS fire counts inside and outside Asia suggest that global biomass burning may be a driver for the decreasing trend in CO total column in Asia, especially in spring. In general, the variations and trends in CO total column over Asia detected by AIRS are similar to but smaller than those by MOPITT. The two datasets show similar spatial and temporal variations in CO total column over Asia, with correlation coefficients of 0.86–0.98 in the annual means. This study shows that the interannual variation in atmospheric CO in Asia is sensitive to biomass burning, while the decreasing trend in atmospheric CO over Asia coincides with the decreasing trend in MODIS fire counts from 2003 to 2017.

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Section: Impacts Of Biomass Burning On the Interannual Variation And mentioning

confidence: 99%

Satellite-Observed Variations and Trends in Carbon Monoxide over Asia and Their Sensitivities to Biomass Burning

et al. 2020

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“…PM2.5 can be suspended in the atmosphere for a long time and carried for long distances. Some studies [16,33] have shown that PM2.5 emissions from biomass boilers in limited areas can greatly increase local air and water pollution, and unhealthy environmental conditions. Air-source heat pump boilers and electric boilers do not directly produce any pollutants by using electricity, although the source of the electricity (renewable, nuclear, or fossil fuel) is important to the net change of pollution compared to other types of boilers.…”

Section: Assessment Of the Different Technologies For Steam Generationmentioning

confidence: 99%

Air‐Source Heat Pump for Distributed Steam Generation: A New and Sustainable Solution to Replace Coal‐Fired Boilers in China

Yan

Wang

2020

Advanced Sustainable Systems

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important to meet China's overall goal for reducing carbon emissions. Among the energy consumption in industries, more than 50% of the energy is used in the form of heat [7] and the high-temperature steam is the most widely used heat carrier (see Note S2 in the Supporting Information), which is mainly supplied by industrial boilers. [8] These boilers produce 1.3 Gt CO 2 and are responsible for 33% and 27% of total soot and SO 2 emissions in China, [9] respectively. As can be easily seen, industrial boilers contribute significantly for major energy users, and are one of the key sources of greenhouse gas emissions and air and water pollution in China. [10] Recently in China, small-sized coal-fired boilers have been gradually restricted (see Table S2 in the Supporting Information). Current alternative boilers are oil-fired, gas-fired, electric, biomass, solar boilers, and some other less-common boiler types, each with its advantages, drawbacks, and obstacles for use in certain application. With oil-fired and gas-fired boiler, [11-12] the corresponding pollutants produced by the combustion process are inevitable. Even with the cleaner gas-fired boilers, [13] large amounts of carbon dioxide are emitted during combustion (even if less than with coal). Critically, gas-fired boilers are also faced with the problem of "gas shortages," especially in winter when the demand for residential heating is strong in the Beijing-Tianjin-Hebei region. [14] It is found that the biomass boiler has many economic, social and environmental benefits. [15] However, biomass fuels [16] are also characterized by high pollution-related contents including chlorine, high concentrations of alkaline materials, highly volatile components, and low ash melting points that make them easily produce slag and coke from combustion. Solar boilers [7,17] can collect solar energy to generate steam with low operating cost. However, solar boilers are usually with high initial cost due to the large collector area. For example, limited by the solar radiation intension about 1367 W m −2 , a 0.5 t h −1 solar boiler needs at least 200 m 2 of solar collector area. An additional shortcoming is that solar power is unavailable at night and is reduced on cloudy days. Therefore, at present, the application of water vapor generator using solar energy is mainly focused on the large-scale high-temperature steam power generation [18] and small-scale solar desalination conceptual design. [19-20] As for geothermal combined system, [21] waste heat boilers, [22] condensing boilers, [23] although they can offer energy savings With the ratification of the Paris Climate Change Agreement, the use of coal-fired boilers in China are being gradually restricted and removed from use to control air pollution and reduce CO 2 emissions. However, current alternatives to coal-fired boilers such as gas-fired boilers, electric boilers, biomass boilers, and solar boilers have obvious limitations and drawbacks that can limit the spread of their use. An air-source heat pump boiler that can extract...

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“…Air pollution in economically developed urban agglomerations such as the Beijing Tianjin Hebei (BTH), Yangtze River Delta (YRD), and Pearl River Delta (PRD) regions has improved significantly due to the government's action plans [4,[12][13][14][15][16][17]. With in-depth research on air pollution, scholars began to study air pollution in different regions of China to fill the gaps in this region, such as the Harbin-Changchun (HC) region [9,[18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

“…HC is located in the Northeast of China [8]. Compared with other study areas, HC is unique in that it has experienced a heating season of up to half a year [9,22]. Due to the low temperature in winter (~−20 • C), the air pollutant components in this region have their unique regional characteristics [7].…”

Section: Introductionmentioning

confidence: 99%

Air Quality in the Harbin-Changchun Metropolitan Area in Northeast China: Unique Episodes and New Trends

Wang

Sun

Zhao

et al. 2021

Toxics

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Because of the unique geographical, climate, and anthropogenic emission characteristics, it is meaningful to explore the air pollution in the Harbin-Changchun (HC) metropolitan area. In this study, the Air Quality Index (AQI) and the corresponding major pollutant were investigated for the HC cities, based on the air quality data derived from the China National Environmental Monitoring Center. The number of days with the air quality level of “good” gradually increased during recent years, pointing to an improvement of the air quality in HC. It was also found that ozone, a typical secondary pollutant, exhibited stronger inter-city correlations compared to typical primary pollutants such as carbon monoxide and nitrogen dioxide. In addition, for nearly all the HC cities, the concentrations of fine particulate matter (PM2.5) decreased substantially in 2020 compared to 2015. However, this was not the case for ozone, with the most significant increase of ozone observed for HC’s central city, Harbin. This study highlights the importance of ozone reduction for further improving HC’s air quality, and the importance of agricultural fire control for eliminating heavily-polluted and even off-the-charts PM2.5 episodes.

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Collective impacts of biomass burning and synoptic weather on surface PM2.5 and CO in Northeast China

Cited by 41 publications

References 73 publications

Satellite-Observed Variations and Trends in Carbon Monoxide over Asia and Their Sensitivities to Biomass Burning

Satellite-Observed Variations and Trends in Carbon Monoxide over Asia and Their Sensitivities to Biomass Burning

Air‐Source Heat Pump for Distributed Steam Generation: A New and Sustainable Solution to Replace Coal‐Fired Boilers in China

Air Quality in the Harbin-Changchun Metropolitan Area in Northeast China: Unique Episodes and New Trends

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