Chemical Composition of Post-Harvest Biomass Burning Aerosols in Gwangju, Korea

Ryu, Seon-Young; Kim, Jeong Eun; Zhuanshi, H; Kim, Young J; Kang, Gong-Unn

doi:10.1080/10473289.2004.10471018

Cited by 78 publications

(48 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Another probable cause could be due to barbecue parties popularly held during autumn events in Korea, where a significant amount of OC aerosols can also be emitted (Ryu et al, 2004).…”

Section: Particle Typesmentioning

confidence: 99%

Characterisation of individual aerosol particles collected during a haze episode in Incheon, Korea using the quantitative ED-EPMA technique

et al. 2011

View full text Add to dashboard Cite

Abstract. A quantitative energy-dispersive electron probe X-ray microanalysis (ED-EPMA), called low-Z particle EPMA, was used to analyse individual aerosol particles collected in Incheon, Korea on 13-18 October 2008 (a typical haze episode occurred from 15 to 18 October). Overall 3600 individual particles in PM 2.5−10 and PM 1.0−2.5 fractions from 12 aerosol samples collected on haze and non-haze days were analysed. The analysed particles were classified, based on their X-ray spectral data together with their secondary electron images. The major particle types included organic carbon (OC), elemental carbon (EC), sea-salt, mineral dust (such as aluminosilicate, SiO 2 , CaCO 3 /CaMgCO 3 , etc.), (NH 4 ) 2 SO 4 /NH 4 HSO 4 -containing, K-containing, Ferich and fly ash particles. Their relative number abundance results showed that OC particles were significantly increased while sea-salts and mineral dust particles were significantly decreased (especially in PM 1.0−2.5 fraction) when haze occurred. For the other particle types (except Fe-rich particles in PM 2.5−10 fraction), there were no significant differences in their relative abundances between haze and non-haze samples. On non-haze days, the nitrate-containing reacted seasalt and mineral dust particles in PM 1.0−2.5 fraction significantly outnumbered the sulfate-containing ones, whereas it was the reverse on haze days, implying that on haze days there were special sources or formation mechanisms for fine aerosol particles (≤2.5 µm in aerodynamic diameter). The emission of air pollutants from motor vehicles and stagnant meteorological conditions, such as low wind speed and high relative humidity, might be responsible for the elevated level of OC particles on haze days.

show abstract

“…Another probable cause could be due to barbecue parties popularly held during autumn events in Korea, where a significant amount of OC aerosols can also be emitted (Ryu et al, 2004).…”

Section: Particle Typesmentioning

confidence: 99%

Characterisation of individual aerosol particles collected during a haze episode in Incheon, Korea using the quantitative ED-EPMA technique

et al. 2011

View full text Add to dashboard Cite

show abstract

“…3(b)) were dominant in the fine particles (0.18-1.8 μm) due to burning of vegetative material, i.e., rice straw, during the sampling period in Daliao, where there are some agricultural activities. Ryu et al (2004) investigated biomass-burning aerosols and found that Cl -, NO 3 -, SO 4 2-, NH 4 + , and K + were the major ionic species in the particles. K + is the major electrolyte in cell cytoplasm, which is released in large amounts of K-rich particulates in the submicron size fraction (Andrease et al, 1983(Andrease et al, , 1998.…”

Section: Water-soluble Ionic Speciesmentioning

confidence: 99%

Size Distribution and Water Soluble Ions of Ambient Particulate Matter on Episode and Non-episode Days in Southern Taiwan

Tsai

Lin

Yao

et al. 2012

Aerosol Air Qual. Res.

View full text Add to dashboard Cite

Distribution of inorganic ions at an urban/industrial/agricultural complex was investigated in southern Taiwan during particulate matter (PM) episode and non-episode periods, and the Micro Orifice Uniform Deposit Impactor (MOUDI) and nano-MOUDI were employed to take PM samples. In PM episode periods, the PM significantly increased in mass concentration and in the size ranges of 0.1-1.0 and 1.8-18 μm at the site. Sulfate, nitrate and ammonium were the dominant ionic species and contributed a large fraction of PM mass in different sizes. The nitrate concentration increase on episode days could be attributed to the increase of precursor gas-NO 2 concentration during these periods. In addition, SO 2 was significantly correlated to SO 4 2-in the nuclei mode (PM 0.1 ), which indicated that the gas had transferred into particulate matter. The molar equivalent ratio of {[NO

show abstract

“…The concentration of total suspended particles (TSP) was also higher due to the effect of fugitive dust, which is generally significant in rural areas in Korea. In the measurements of PM 10 conducted in spring and fall of both 2007 and 2008 at the same site, K + was highly correlated with secondary inorganic ions such as SO 4 2− and NO 3 − , indicating the influence of biomass burning on the photochemical production (Maxwell-Meyer et al, 2004;Ryu et al, 2004Ryu et al, , 2007Won et al, 2010).…”

Section: Measurement Sitementioning

confidence: 95%

Classification of diurnal patterns of particulate inorganic ions downwind of metropolitan Seoul

Lee

Choi

Ghim

2016

Environ Sci Pollut Res

View full text Add to dashboard Cite

The inorganic ions in PM2.5 were measured downwind of metropolitan Seoul using a particle-into-liquid sampler over three periods. Five diurnal patterns, including a low-concentration pattern (L) and a high-concentration pattern with a decreasing trend during the day (H-), were distinguished for the first period from February to June 2012. The sum of ion concentrations increased primarily due to NO3 (-) with decreasing temperature and increasing relative humidity, which caused preferential partitioning of NO3 (-) into the particulate phase. The peak concentration occurred during the morning rush hour for L but was delayed until the next morning for H- due to the time required to form secondary inorganic ions from accumulated pollutants under lower wind speeds. The characteristic features of the patterns observed during the first period were generally similar with those obtained for the other two periods. However, for the second period, comprised of colder months, changes in the diurnal patterns from L to H- were accompanied by increasing temperature, as the effect of photochemical formation of NO3 (-) was larger than that of volatilization. Although the role of long-range transport was not distinct on the whole, the inflow of air masses from cleaner sectors was observed to lower the concentrations.

show abstract

Chemical Composition of Post-Harvest Biomass Burning Aerosols in Gwangju, Korea

Abstract: The main objective of this study was to investigate the chemical characteristics of post-harvest biomass burning aerosols from field burning of barley straw in late spring and rice straw in late fall in rural areas of Korea.

Cited by 78 publications

References 13 publications

Characterisation of individual aerosol particles collected during a haze episode in Incheon, Korea using the quantitative ED-EPMA technique

Characterisation of individual aerosol particles collected during a haze episode in Incheon, Korea using the quantitative ED-EPMA technique

Size Distribution and Water Soluble Ions of Ambient Particulate Matter on Episode and Non-episode Days in Southern Taiwan

Classification of diurnal patterns of particulate inorganic ions downwind of metropolitan Seoul

Contact Info

Product

Resources

About