Volatility and mixing states of ultrafine particles from biomass burning

Hossain, Anowar; Park, Seung Ho; Kim, Jaeseok; Park, Kihong

doi:10.1016/j.jhazmat.2011.12.061

Cited by 40 publications

(32 citation statements)

References 40 publications

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“…The geometric mean diameters for primarily emitted particles in this study were smaller than those (100-150 nm) reported for crop residual burning under low dilution conditions (H. Li et al, 2015), probably due to evaporation of organic vapors under the high dilution conditions (Lipsky et al, 2006) and coagulation of fine particles under the low dilution conditions (Hossain et al, 2012). After switching on black lamps, apparent growth of particle size was observed.…”

Section: Evolution Of Particlescontrasting

confidence: 76%

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: Evolution Of Particlescontrasting

confidence: 76%

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

et al. 2017

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“…Different methods of particle measurement are recommended to confirm the values obtained during sampling, as in studies of Hosseini et al [16], Costa et al [17], Hossain et al [44], and Amaral et al [50].…”

Section: Discussionmentioning

confidence: 99%

“…According to Hossain et al [44], the system is composed of two nano-DMA, two long-DMA (to cover a range of large size), a heating tube, and one Ultrafine Condensation Particle Counter (UCPC).…”

Section: Mobility Analyzermentioning

confidence: 99%

“…Among the spectrometers based on particle mobility, the most known are the Differential Mobility Spectrometers (DMS) and the Fast Mobility Particle Sizer (FMPS), mentioned by Hosseini et al [16] and Hossain et al [44].…”

Section: Differential Mobility Spectrometers (Dms)mentioning

confidence: 99%

“…In the studies conducted by Hossain et al [44], a PSD was employed to measure PM aerodynamic diameter. However, a description regarding this instrument was not found, since its construction was restricted by the manufacturer.…”

Section: Aerodynamic Sizersmentioning

confidence: 99%

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This review article presents an overview of instruments available on the market for measurement of particulate matter. The main instruments and methods of measuring concentration (gravimetric, optical, and microbalance) and size distribution Scanning Mobility Particle Sizer (SMPS), Electrical Low Pressure Impactor (ELPI), and others were described and compared. The aim of this work was to help researchers choose the most suitable equipment to measure particulate matter. When choosing a measuring instrument, a researcher must clearly define the purpose of the study and determine whether it meets the main specifications of the equipment. ELPI and SMPS are the suitable devices for measuring fine particles; the ELPI works in real time. In health-related studies, a Diffusion Charger is the instrument that best characterizes the surface of ultrafine particles. Several methods and different particle measuring instruments should be used to confirm the values obtained during sampling.

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Kumar¹,

Al‐Dabbous²

2016

Engineered Nanoparticles and the Environment: Biophysicochemical Processes and Toxicity

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Volatility and mixing states of ultrafine particles from biomass burning

Cited by 40 publications

References 40 publications

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

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

An Overview of Particulate Matter Measurement Instruments

Emission, Transformation, and Fate of Nanoparticles in the Atmosphere

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