Details

Autor(en) / Beteiligte

• Xue, Yifeng
• Tian, Hezhong
• Yan, Jing
• Zhou, Zhen
• Wang, Junling
• Nie, Lei
• Pan, Tao
• Zhou, Junrui
• Hua, Shenbing
• Wang, Yong
• Wu, Xiaoqing

Titel

Temporal trends and spatial variation characteristics of primary air pollutants emissions from coal-fired industrial boilers in Beijing, China

Ist Teil von

• Environmental pollution (1987), 2016-06, Vol.213, p.717-726

Ort / Verlag

England: Elsevier Ltd

Erscheinungsjahr

2016

Quelle

MEDLINE

Beschreibungen/Notizen

• Coal-fired combustion is recognized as a significant anthropogenic source of atmospheric compounds in Beijing, causing heavy air pollution events and associated deterioration in visibility. Obtaining an accurate understanding of the temporal trends and spatial variation characteristics of emissions from coal-fired industrial combustion is essential for predicting air quality changes and evaluating the effectiveness of current control measures. In this study, an integrated emission inventory of primary air pollutants emitted from coal-fired industrial boilers in Beijing is developed for the period of 2007–2013 using a technology-based approach. Future emission trends are projected through 2030 based on current energy-related and emission control policies. Our analysis shows that there is a general downward trend in primary air pollutants emissions because of the implementation of stricter local emission standards and the promotion by the Beijing municipal government of converting from coal-fired industrial boilers to gas-fired boilers. However, the ratio of coal consumed by industrial boilers to total coal consumption has been increasing, raising concerns about the further improvement of air quality in Beijing. Our estimates indicate that the total emissions of PM10, PM2.5, SO2, NOx, CO and VOCs from coal-fired industrial boilers in Beijing in 2013 are approximately 19,242 t, 13,345 t, 26,615 t, 22,965 t, 63,779 t and 1406 t, respectively. Under the current environmental policies and relevant energy savings and emission control plans, it may be possible to reduce NOx and other air pollutant emissions by 94% and 90% by 2030, respectively, if advanced flue gas purification technologies are implemented and coal is replaced with natural gas in the majority of existing boilers. [Display omitted] •A unit-based emission inventory of coal-fired industrial boilers is developed.•Temporal trend of historical period 2007–2013 and the future till 2030 is assessed.•Spatial characteristics of primary air pollutants emissions in 2013 are presented.•Monthly profile of primary air pollutant emissions from coal-fired boilers is given.•Replacing coal-fired boilers with gas is required to improve air quality in Beijing. An integrated emission inventory of primary air pollutants from coal-fired industrial boilers in Beijing is developed for the period of 2007–2013 using a technology-based approach.