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Spatial and temporal distributions of air pollutant emissions from open crop straw and biomass burnings in China from 2002 to 2016

Mehmood, Khalid and Chang, Shucheng and Yu, Shaocai and Wang, Liqiang and Li, Pengfei and Li, Zhen and Liu, Weiping and Rosenfeld, Daniel and Seinfeld, John H. (2018) Spatial and temporal distributions of air pollutant emissions from open crop straw and biomass burnings in China from 2002 to 2016. Environmental Chemistry Letters, 16 (1). pp. 301-309. ISSN 1610-3653. https://resolver.caltech.edu/CaltechAUTHORS:20171201-154316219

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Abstract

Open biomass burning (OBB) with a main contribution from open crop straw burning (OCSB) plays a key role in the formation of heavy haze episodes during harvest seasons in China through release of particulate matter (PM) and gaseous pollutants. Here we analyze spatial and temporal distributions of air pollutant emissions from OCSB and OBB in China from 2002 to 2016 on the basis of daily and highly resolved (1 km) emissions from the latest FINNv1.5 inventory. Estimated annual emissions of black carbon, organic carbon, PM_(2.5), PM_(10), CH_4, CO, CO_2, NH_3, NO_x, SO_2 and NMVOCS from OBB in China from 2002 to 2016 have increased by 192, 180, 191, 196, 212, 199, 173, 208, 185, 184 and 225%, respectively, whereas emissions from OCSB have increased consistently by ~ 200% for each species. Estimated PM_(2.5) annual emissions from OCSB increased significantly by 245.7% from 14.9 Gg/year in 2012 to 51.5 Gg/year in 2016 in Northeast China, whereas decreasing by 76.1% from 76.3 Gg/year in 2012 to 18.2 Gg/year in 2016 in East China. Contributions of OCSB in OBB emissions increased from 25.4% in 2002 to 56.4% in 2016 in North China and from 31.0% in 2002 to 66.4% in 2016 in Northeast China. Spatial distributions for the period of 2002-2016 indicate that the largest PM_(2.5) annual mean emissions from OCSB (37.0 Gg/year) occur in East China, followed by Northeast China (20.0 Gg/year) and Central China (13.5 Gg/year), whereas Southwest China has the largest PM_(2.5) annual mean emissions from OBB (286.5 Gg/year), following by East China (273.7 Gg/year), South China (237.3 Gg/year) and Central China (126.1 Gg/year). Contributions of OCSB in OBB emissions for PM_(2.5) have increased significantly to 56.4–66.4% in North and Northeast China in 2016.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1007/s10311-017-0675-6DOIArticle
https://link.springer.com/article/10.1007%2Fs10311-017-0675-6PublisherArticle
http://rdcu.be/z9iRPublisherFree ReadCube access
ORCID:
AuthorORCID
Yu, Shaocai0000-0001-9718-8246
Liu, Weiping0000-0002-1173-892X
Rosenfeld, Daniel0000-0002-0784-7656
Seinfeld, John H.0000-0003-1344-4068
Additional Information:© 2017 Springer International Publishing AG. Received: 24 September 2017; Accepted: 23 October 2017; First Online: 30 November 2017. This work was partially supported by the Department of Science and Technology of China (Nos. 2016YFC0202702, 2014BAC22B06) and National Natural Science Foundation of China (No. 21577126). This work was also supported by the Joint NSFC–ISF Research Program (No. 41561144004), jointly funded by the National Natural Science Foundation of China and the Israel Science Foundation. Part of this work was also supported by the “Zhejiang 1000 Talent Plan” and Research Center for Air Pollution and Health in Zhejiang University.
Funders:
Funding AgencyGrant Number
Department of Science and Technology (China)2016YFC0202702
Department of Science and Technology (China)2014BAC22B06
National Natural Science Foundation of China21577126
National Natural Science Foundation of China41561144004
Israel Science FoundationUNSPECIFIED
Zhejiang UniversityUNSPECIFIED
Subject Keywords:Open biomass burning; Open crop straw burning; China; FINNv1.5
Issue or Number:1
Record Number:CaltechAUTHORS:20171201-154316219
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20171201-154316219
Official Citation:Mehmood, K., Chang, S., Yu, S. et al. Environ Chem Lett (2018) 16: 301. https://doi.org/10.1007/s10311-017-0675-6
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:83641
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:02 Dec 2017 04:38
Last Modified:09 Mar 2020 13:19

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