Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-14821-2017 |
Open burning of rice, corn and wheat straws: primary emissions, photochemical aging, and secondary organic aerosol formation | |
Fang, Zheng1,2,4; Deng, Wei1,2,4; Zhang, Yanli1,2,3; Ding, Xiang1,2; Tang, Mingjin1,2; Liu, Tengyu1,2; Hu, Qihou1,2; Zhu, Ming1,2,4; Wang, Zhaoyi1,2,4; Yang, Weiqiang1,2,4; Huang, Zhonghui1,2,4; Song, Wei1,2,3; Bi, Xinhui1,2; Chen, Jianmin5; Sun, Yele6; George, Christian7; Wang, Xinming1,2,3 | |
2017-12-14 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:24 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; France |
英文摘要 | Agricultural residues are among the most abundant biomass burned globally, especially in China. However, there is little information on primary emissions and photochemical evolution of agricultural residue burning. In this study, indoor chamber experiments were conducted to investigate primary emissions from open burning of rice, corn and wheat straws and their photochemical aging as well. Emission factors of NOx, NH3, SO2, 67 non-methane hydrocarbons (NMHCs), particulate matter (PM), organic aerosol (OA) and black carbon (BC) under ambient dilution conditions were determined. Olefins accounted for > 50% of the total speciated NMHCs emission (2.47 to 5.04 g kg(-1)), indicating high ozone formation potential of straw burning emissions. Emission factors of PM (3.73 to 6.36 g kg(-1)) and primary organic carbon (POC, 2.05 to 4.11 gC kg(-1)), measured at dilution ratios of 1300 to 4000, were lower than those reported in previous studies at low dilution ratios, probably due to the evaporation of semi-volatile organic compounds under high dilution conditions. After photochemical aging with an OH exposure range of (1.97-4.97) x 10(10) molecule cm(-3) s in the chamber, large amounts of secondary organic aerosol (SOA) were produced with OA mass enhancement ratios (the mass ratio of total OA to primary OA) of 2.4-7.6. The 20 known precursors could only explain 5.0-27.3% of the observed SOA mass, suggesting that the major precursors of SOA formed from open straw burning remain unidentified. Aerosol mass spectrometry (AMS) signaled that the aged OA contained less hydrocarbons but more oxygen-and nitrogen-containing compounds than primary OA, and carbon oxidation state (OSc) calculated with AMS resolved O / C and H / C ratios increased linearly (p < 0.001) with OH exposure with quite similar slopes. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000417840600001 |
WOS关键词 | TRACE GAS EMISSIONS ; CROP RESIDUE ; HIGH-RESOLUTION ; PARTICULATE MATTER ; POLLUTANT EMISSIONS ; TROPOSPHERIC OZONE ; PARTICLE EMISSIONS ; REACTIVE NITROGEN ; LIGHT-ABSORPTION ; DIESEL EXHAUST |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/30781 |
专题 | 地球科学 |
作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China; 2.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Key Lab Environm Protect & Resources Ut, Guangzhou 510640, Guangdong, Peoples R China; 3.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China; 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 5.Fudan Univ, Dept Environm Sci & Engn, Shanghai Key Lab Atmospher Particle Pollut & Prev, Shanghai 200433, Peoples R China; 6.Chinese Acad Sci, Inst Atmospher Phys, Beijing 100029, Peoples R China; 7.CNRS, UMR5256, Inst Rech Catalyse & Environment Lyon IRCELYON, F-69626 Villeurbanne, France |
推荐引用方式 GB/T 7714 | Fang, Zheng,Deng, Wei,Zhang, Yanli,et al. Open burning of rice, corn and wheat straws: primary emissions, photochemical aging, and secondary organic aerosol formation[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(24). |
APA | Fang, Zheng.,Deng, Wei.,Zhang, Yanli.,Ding, Xiang.,Tang, Mingjin.,...&Wang, Xinming.(2017).Open burning of rice, corn and wheat straws: primary emissions, photochemical aging, and secondary organic aerosol formation.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(24). |
MLA | Fang, Zheng,et al."Open burning of rice, corn and wheat straws: primary emissions, photochemical aging, and secondary organic aerosol formation".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.24(2017). |
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