Characterization of gaseous and semi-volatile organic compounds emitted from field burning of rice straw

Oanh, Nguyen Thi Kim; Tipayarom, Aungsiri; Bich, Thuy Ly; Tipayarom, Danutawat; Simpson, Christopher D.; Hardie, David C.; Liu, L.-J. Sally

doi:10.1016/j.atmosenv.2015.08.005

Cited by 46 publications

(15 citation statements)

References 33 publications

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“…Emission factors of SO 2 were 0.07 ± 0.07, 0.99 ± 1.53 and 0.72 ± 0.34 g kg −1 for rice, corn and wheat straw. Our measured emission factors of SO 2 were lower than those reported by Cao et al (2008) and Kim Oanh et al (2015) for rice straw, but higher than those reported by Cao et al (2008) for corn and wheat straw. Due to low sulfur contents in crop straws, the SO 2 emission factors for open burning of crop residues were much lower than those for domestic coal combustion, which were determined to be 2.43-5.36 g kg −1 for raw bituminous coal (Du et al, 2016).…”

Section: Oa Production Predictioncontrasting

confidence: 53%

“…Akagi et al (2011) updated the emission data for 14 types of biomass burning, and newly identified species were included. Since biomass types and combustion conditions may differ in different studies, reported emission factors are highly variable, especially for agricultural residue burning (Li et al, 2007(Li et al, , 2017Cao et al, 2008;Zhang et al, 2008;Yokelson et al, 2011;Brassard et al, 2014;Sanchis et al, 2014;Ni et al, 2015;Kim Oanh et al, 2015;Stockwell et al, 2016;Bruns et al, 2017;Tkacik et al, 2017). Moreover, previous studies on agricultural residue burning were mostly carried out near fire spots or in chambers with low dilution ratios.…”

Section: Z Fang Et Al: Open Burning Of Rice Corn and Wheat Strawsmentioning

confidence: 99%

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Open burning of rice, corn and wheat straws: primary emissions, photochemical aging, and secondary organic aerosol formation

et al. 2017

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Abstract. 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 NO x , NH 3 , SO 2 , 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) × 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 nitrogencontaining compounds than primary OA, and carbon oxidation state (OS c ) calculated with AMS resolved O / C and H / C ratios increased linearly (p < 0.001) with OH exposure with quite similar slopes.

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Section: Oa Production Predictioncontrasting

confidence: 53%

Section: Z Fang Et Al: Open Burning Of Rice Corn and Wheat Strawsmentioning

confidence: 99%

Open burning of rice, corn and wheat straws: primary emissions, photochemical aging, and secondary organic aerosol formation

et al. 2017

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“…Recently, various studies reported the emission factors measured in laboratory or field measurements, often varied widely in different experiments, as summarized in Table 1. In brackets are the all emission factors values derived by Kim Oanh, N. T. et al (2011) [31], except SO 2 derived from Kim Oanh, N. T. et al (2015) [32]. The field burning experiments were conducted in the Pathum thani province which is located in the central part of Thailand.…”

Section: Assessment Of Emissions From Rice Residue Open Burningmentioning

confidence: 99%

“…Kanokkanjana, K. and Garivait, S. (2010) [40] developed the emission factor of CO 2 , CO, and PM 2.5 for rice residue burning by field experiment in Thailand during 2007 to 2010. However, the emission factors from recent or local measurements were employed in this study derived from Kim Oanh, N. T. et al (2011) [31] and Kim Oanh, N. T. et al (2015) [32], concerning the fact that it represents the average emission factor of rice straw burning of Thailand for all emission species focused in this study. The emission factors were estimated to be 1177 ± 140 g/kg for CO 2 , 93 ± 10 g/kg for CO, 0.49 ± 0.21 g/kg for NO X , 0.51 ± 0.32 g/kg for SO 2 , 8.3 ± 2.2 g/kg for PM 2.5 , 9.4 ± 3.5 g/kg for PM 10 , 0.53 g/kg for BC, and 3.1 g/kg for OC.…”

Section: Assessment Of Emissions From Rice Residue Open Burningmentioning

confidence: 99%

“…Regarding the emission factor, the differences owe to the use of different sources of information. This study used the set of emission factor from the study of Kim Oanh, N. T. et al (2011) [31], except SO 2 derived from Kim Oanh, N. T. et al (2015) [32], which is similar to the study of Kim Oanh, N. T. (2018) [30]. The set of emission factors obtained from the rice straw spread field burning measurements in Thailand which were used for the places with mechanical harvesting.…”

Section: Comparison With Other Studiesmentioning

confidence: 99%

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Emission of Air Pollutants from Rice Residue Open Burning in Thailand, 2018

et al. 2018

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Crop residue burning negatively impacts both the environment and human health, whether in the aspect of air pollution, regional and global climate change, or transboundary air pollution. Accordingly, this study aims to assess the level of air pollutant emissions caused by the rice residue open burning activities in 2018, by analyzing the remote sensing information and country specific data. This research also aims to analyze the trend of particulate matter 10 microns or less in diameter (PM10) concentration air quality sites in provinces with large paddy rice planting areas from 2010–2017. According to the results, 61.87 megaton (Mt) of rice residue were generated, comprising 21.35 Mt generated from the irrigated fields and 40.53 Mt generated from the rain-fed field. Only 23.0% of the total rice residue generated were subject to open burning—of which nearly 32% were actually burned in the fields. The emissions from such rice residue burning consisted of: 5.34 ± 2.33 megaton (Mt) of CO2, 44 ± 14 kiloton (kt) of CH4, 422 ± 179 kt of CO, 2 ± 2 kt of NOX, 2 ± 2 kt of SO2, 38 ± 22 kt of PM2.5, 43 ± 29 kt of PM10, 2 ± 1 kt of black carbon (BC), and 14 ± 5 kt of organic carbon (OC). According to the air quality trends, the results shows the higher level of PM10 concentration was due to the agricultural burning activities, as reflected in the higher monthly averages of the months with the agricultural burning, by around 1.9–2.1 times. The result also shows the effect of government’s policy for farmers on the crop burning activities and air quality trends.

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