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Articles de revues sur le sujet « Organici Volatili »

Auteur : Grafiati

Publié le 9 mars 2023

Mis à jour le 31 juillet 2025

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1

Hong, Juan, Mikko Äijälä, Silja A. K. Häme, et al. "Estimates of the organic aerosol volatility in a boreal forest using two independent methods." Atmospheric Chemistry and Physics 17, no. 6 (2017): 4387–99. http://dx.doi.org/10.5194/acp-17-4387-2017.

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Abstract. The volatility distribution of secondary organic aerosols that formed and had undergone aging – i.e., the particle mass fractions of semi-volatile, low-volatility and extremely low volatility organic compounds in the particle phase – was characterized in a boreal forest environment of Hyytiälä, southern Finland. This was done by interpreting field measurements using a volatility tandem differential mobility analyzer (VTDMA) with a kinetic evaporation model. The field measurements were performed during April and May 2014. On average, 40 % of the organics in particles were semi-volatil

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Patoulias, D., C. Fountoukis, I. Riipinen, and S. N. Pandis. "The role of organic condensation on ultrafine particle growth during nucleation events." Atmospheric Chemistry and Physics Discussions 14, no. 22 (2014): 30761–98. http://dx.doi.org/10.5194/acpd-14-30761-2014.

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Abstract. A new aerosol dynamics model (DMANx) has been developed that simulates the aerosol size/composition distribution and includes the condensation of organic vapors on nanoparticles through the implementation of the recently developed Volatility Basis Set framework. Simulations were performed for Hyytiala (Finland) and Finokalia (Greece), two locations with different organic sources where detailed measurements were available to constrain the new model. We investigate the effect of condensation of organics and chemical aging reactions of secondary organic aerosol (OA) on ultrafine particl

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Patoulias, D., C. Fountoukis, I. Riipinen, and S. N. Pandis. "The role of organic condensation on ultrafine particle growth during nucleation events." Atmospheric Chemistry and Physics 15, no. 11 (2015): 6337–50. http://dx.doi.org/10.5194/acp-15-6337-2015.

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Abstract. A new aerosol dynamics model (DMANx) has been developed that simulates aerosol size/composition distribution and includes the condensation of organic vapors on nanoparticles through the implementation of the recently developed volatility basis set framework. Simulations were performed for Hyytiälä (Finland) and Finokalia (Greece), two locations with different organic sources where detailed measurements were available to constrain the new model. We investigate the effect of condensation of organics and chemical aging reactions of secondary organic aerosol (SOA) precursors on ultrafine

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Jathar, S. H., M. A. Miracolo, A. A. Presto, N. M. Donahue, P. J. Adams, and A. L. Robinson. "Modeling the formation and properties of traditional and non-traditional secondary organic aerosol: problem formulation and application to aircraft exhaust." Atmospheric Chemistry and Physics 12, no. 19 (2012): 9025–40. http://dx.doi.org/10.5194/acp-12-9025-2012.

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Abstract. We present a methodology to model secondary organic aerosol (SOA) formation from the photo-oxidation of unspeciated low-volatility organics (semi-volatile and intermediate volatile organic compounds) emitted by combustion systems. It is formulated using the volatility basis-set approach. Unspeciated low-volatility organics are classified by volatility and then allowed to react with the hydroxyl radical. The new methodology allows for larger reductions in volatility with each oxidation step than previous volatility basis set models, which is more consistent with the addition of common

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Kays, Stanley J. "NON-ETHYLENE BIOLOGICALLY ACTIVE POSTHARVEST VOLATILES." HortScience 25, no. 9 (1990): 1180f—1180. http://dx.doi.org/10.21273/hortsci.25.9.1180f.

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While we tend to think of postharvest volatiles as nitrogen, oxygen, carbon dioxide and ethylene, harvested products are actually exposed to thousands of volatile compounds. These volatiles are derived from both organic and inorganic sources, evolving from storage room walls, insulation, wrapping materials, combusted products, plants, animals, and a myriad of other sources. Plants alone manufacture a diverse array of secondary metabolizes (estimated to be as many as 400,000) of which many display some degree of volatility. We tend to be cognizant of volatiles when they represent distinct odors

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Esteve-Redondo, Patricia, Raquel Heras-Mozos, Ernest Simó-Ramírez, et al. "Innovative Systems for the Delivery of Naturally Occurring Antimicrobial Volatiles in Active Food-Packaging Technologies for Fresh and Minimally Processed Produce: Stimuli-Responsive Materials." Foods 13, no. 6 (2024): 856. http://dx.doi.org/10.3390/foods13060856.

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Certain naturally occurring volatile organic compounds are able to mitigate food spoilage caused by microbial growth. Their considerable vapor pressure enables them to create an antimicrobial atmosphere within a package, and this property can be used for the development of active food-packaging technologies. The volatility of these molecules, however, makes their stabilization difficult and limits their effectiveness. Whilst much research is being undertaken on the use of natural antimicrobial volatiles for inhibiting microbial growth in food, less attention has been paid to the design of cont

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Lee, A. K. Y., K. L. Hayden, P. Herckes, et al. "Characterization of aerosol and cloud water at a mountain site during WACS 2010: secondary organic aerosol formation through oxidative cloud processing." Atmospheric Chemistry and Physics 12, no. 15 (2012): 7103–16. http://dx.doi.org/10.5194/acp-12-7103-2012.

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Abstract. The water-soluble fractions of aerosol filter samples and cloud water collected during the Whistler Aerosol and Cloud Study (WACS 2010) were analyzed using an Aerodyne aerosol mass spectrometer (AMS). This is the first study to report AMS organic spectra of re-aerosolized cloud water, and to make direct comparison between the AMS spectra of cloud water and aerosol samples collected at the same location. In general, the mass spectra of aerosol were very similar to those of less volatile cloud organics. By using a photochemical reactor to oxidize both aerosol filter extracts and cloud

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Lee, A. K. Y., K. L. Hayden, P. Herckes, et al. "Characterization of aerosol and cloud water at a mountain site during WACS 2010: secondary organic aerosol formation through oxidative cloud processing." Atmospheric Chemistry and Physics Discussions 12, no. 2 (2012): 6019–47. http://dx.doi.org/10.5194/acpd-12-6019-2012.

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Abstract. The water-soluble fractions of aerosol samples and cloud water collected during Whistler Aerosol and Cloud Study (WACS 2010) were analyzed using an Aerodyne aerosol mass spectrometer (AMS). This is the first study to report AMS organic spectra of re-aerosolized cloud water, and to make direct comparison between the AMS spectra of cloud water and aerosol samples collected at the same location. In general, the aerosol and cloud organic spectra were very similar, indicating that the cloud water organics likely originated from secondary organic aerosol (SOA) formed nearby. By using a pho

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9

Li, Zeqi, Shuxiao Wang, Shengyue Li, et al. "High-resolution emission inventory of full-volatility organic compounds from cooking in China during 2015–2021." Earth System Science Data 15, no. 11 (2023): 5017–37. http://dx.doi.org/10.5194/essd-15-5017-2023.

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Abstract. Quantifying the full-volatility organic emissions from cooking sources is important for understanding the causes of organic aerosol pollution. However, existing national cooking emission inventories in China fail to cover full-volatility organics and have large biases in estimating emissions and their spatial distribution. Here, we develop the first emission inventory of full-volatility organics from cooking in China, which covers emissions from individual commercial restaurants as well as residential kitchens and canteens. In our emission estimates, we use cuisine-specific full-vola

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Jathar, S. H., M. A. Miracolo, A. A. Presto, P. J. Adams, and A. L. Robinson. "Modeling the formation and properties of traditional and non-traditional secondary organic aerosol: problem formulation and application to aircraft exhaust." Atmospheric Chemistry and Physics Discussions 12, no. 4 (2012): 9945–83. http://dx.doi.org/10.5194/acpd-12-9945-2012.

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Abstract. We present a methodology to model secondary organic aerosol (SOA) formation from the photo-oxidation of low-volatility organics (semi-volatile and intermediate volatility organic compounds). The model is parameterized and tested using SOA data collected during two field campaigns that characterized the atmospheric evolution of dilute gas-turbine engine emissions using a smog chamber. Photo-oxidation formed a significant amount of SOA, much of which cannot be explained based on the emissions of traditional, speciated precursors; we refer to this as non-traditional SOA (NT-SOA). The NT

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Grieshop, A. P., J. M. Logue, N. M. Donahue, and A. L. Robinson. "Laboratory investigation of photochemical oxidation of organic aerosol from wood fires – Part 1: Measurement and simulation of organic aerosol evolution." Atmospheric Chemistry and Physics Discussions 8, no. 4 (2008): 15699–737. http://dx.doi.org/10.5194/acpd-8-15699-2008.

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Abstract. Experiments were conducted to investigate the effects of photo-oxidation on organic aerosol (OA) in wood smoke by exposing diluted emissions from soft- and hard-wood fires to UV light in a smog chamber. Particle- and gas-phase concentrations were monitored with a suite of instruments including a Proton Transfer Reaction Mass Spectrometer (PTR-MS), an Aerosol Mass Spectrometer (AMS) and a thermodenuder to measure aerosol volatility. The measurements highlight how in-plume processing can lead to considerable evolution of the mass and volatility of biomass burning OA. Photochemical oxid

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Apriyanto, Donni Kis, and Mitrayana Mitrayana. "SERAPAN SENYAWA ORGANIK VOLATIL SEBAGAI BIOMARKER PENYAKIT KANKER PARU: SUATU MINI REVIEW." Biomedika 12, no. 2 (2020): 58–64. http://dx.doi.org/10.23917/biomedika.v12i2.10114.

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ABSTRAKUlasan ini merupakan hasil studi literatur yang memberikan tinjauan umum serapan senyawa-senyawa organik volatil yang dianggap sebagai biomarker kanker paru. Senyawa-senyawa ini dapat menyerap pada panjang gelombang tertentu. Senyawa-senyawa organik volatil yang teridentifikasi didaftar dan dijabarkan panjang gelombang yang dapat mereka serap. Studi literatur ini menyajikan kelompok senyawa-senyawa organik volatil dapat menyerap pada rentang panjang gelombang inframerah. Hasil ulasan ini mungkin dapat bermanfaat untuk pengembangan skrinning kanker paru dengan menggunakan alat spektrosko

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Raatikainen, T., P. Vaattovaara, P. Tiitta, et al. "Physicochemical properties and origin of organic groups detected in boreal forest using an aerosol mass spectrometer." Atmospheric Chemistry and Physics 10, no. 4 (2010): 2063–77. http://dx.doi.org/10.5194/acp-10-2063-2010.

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Abstract. An Aerodyne quadrupole aerosol mass spectrometer (Q-AMS) was deployed in Hyytiälä, a forested rural measurement site in southern Finland, during a 2-week measurement campaign in spring 2005. Q-AMS measures mass concentrations of non-refractory species including sulphate, nitrate, ammonium and organics from submicron particles. A positive matrix factorization method was used in identifying two oxygenated organic aerosol (OOA) groups from the measured total organic mass. The properties of these groups were estimated from their diurnal concentration cycles and correlations with addition

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Poulain, L., W. Birmili, F. Canonaco, et al. "Chemical mass balance of 300 °C non-volatile particles at the tropospheric research site Melpitz, Germany." Atmospheric Chemistry and Physics 14, no. 18 (2014): 10145–62. http://dx.doi.org/10.5194/acp-14-10145-2014.

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Abstract. In the fine-particle mode (aerodynamic diameter < 1 μm) non-volatile material has been associated with black carbon (BC) and low-volatile organics and, to a lesser extent, with sea salt and mineral dust. This work analyzes non-volatile particles at the tropospheric research station Melpitz (Germany), combining experimental methods such as a mobility particle-size spectrometer (3–800 nm), a thermodenuder operating at 300 °C, a multi-angle absorption photometer (MAAP), and an aerosol mass spectrometer (AMS). The data were collected during two atmospheric field experiments in May–Jun

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15

Gao, Chloe Y., Kostas Tsigaridis, and Susanne E. Bauer. "MATRIX-VBS (v1.0): implementing an evolving organic aerosol volatility in an aerosol microphysics model." Geoscientific Model Development 10, no. 2 (2017): 751–64. http://dx.doi.org/10.5194/gmd-10-751-2017.

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Abstract. The gas-particle partitioning and chemical aging of semi-volatile organic aerosol are presented in a newly developed box model scheme, where its effect on the growth, composition, and mixing state of particles is examined. The volatility-basis set (VBS) framework is implemented into the aerosol microphysical scheme MATRIX (Multiconfiguration Aerosol TRacker of mIXing state), which resolves mass and number aerosol concentrations and in multiple mixing-state classes. The new scheme, MATRIX-VBS, has the potential to significantly advance the representation of organic aerosols in Earth s

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Cheung, Heidi H. Y., Haobo Tan, Hanbing Xu, et al. "Measurements of non-volatile aerosols with a VTDMA and their correlations with carbonaceous aerosols in Guangzhou, China." Atmospheric Chemistry and Physics 16, no. 13 (2016): 8431–46. http://dx.doi.org/10.5194/acp-16-8431-2016.

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Abstract. Simultaneous measurements of aerosol volatility and carbonaceous matters were conducted at a suburban site in Guangzhou, China, in February and March 2014 using a volatility tandem differential mobility analyzer (VTDMA) and an organic carbon/elemental carbon (OC ∕ EC) analyzer. Low volatility (LV) particles, with a volatility shrink factor (VSF) at 300 °C exceeding 0.9, contributed 5 % of number concentrations of the 40 nm particles and 11–15 % of the 80–300 nm particles. They were composed of non-volatile material externally mixed with volatile material, and therefore did not evapor

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Kangasniemi, Oskari, Pauli Simonen, Jana Moldanová, et al. "Volatility of a Ship’s Emissions in the Baltic Sea Using Modelling and Measurements in Real-World Conditions." Atmosphere 14, no. 7 (2023): 1175. http://dx.doi.org/10.3390/atmos14071175.

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Shipping emissions are a major source of particulate matter in the atmosphere. The volatility of gaseous and particulate phase ship emissions are poorly known despite their potentially significant effect on the evolution of the emissions and their secondary organic aerosol (SOA) formation potential. An approach combining a genetic optimisation algorithm with volatility modelling was used on volatility measurement data to study the volatility distribution of a ship engine’s emissions in real-world conditions. The fuels used were marine gas oil (MGO) and methanol. The engine was operated with 50

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Poulain, L., W. Birmili, F. Canonaco, et al. "Chemical mass balance of refractory particles (<i>T</i>=300 °C) at the tropospheric research site Melpitz, Germany." Atmospheric Chemistry and Physics Discussions 13, no. 10 (2013): 26981–7018. http://dx.doi.org/10.5194/acpd-13-26981-2013.

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Abstract. In the fine particle mode (aerodynamic diameter <1 μm) refractory material has been associated with black carbon (BC) and low-volatile organics and, to a lesser extent, with sea salt and mineral dust. This work analyses refractory particles at the tropospheric research station Melpitz (Germany), combining experimental methods such as a mobility particle size spectrometer (3–800 nm), a thermodenuder operating at 300 °C, a multi-angle absorption photometer (MAAP), and an aerosol mass spectrometer (AMS). The data were collected during two atmospheric field experiments in May/June 200

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19

Irfan, Muhammed, Thomas Kühn, Taina Yli-Juuti, et al. "A model study investigating the sensitivity of aerosol forcing to the volatilities of semi-volatile organic compounds." Atmospheric Chemistry and Physics 24, no. 14 (2024): 8489–506. http://dx.doi.org/10.5194/acp-24-8489-2024.

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Abstract. Secondary organic aerosol (SOA) constitutes an important component of atmospheric particulate matter, with a substantial influence on air quality, human health and the global climate. The volatility basis set (VBS) framework has provided a valuable tool for better simulating the formation and evolution of SOA where SOA precursors are grouped by their volatility. This is done in order to avoid the computational cost of simulating possibly hundreds of atmospheric organic species involved in SOA formation. The accuracy of this framework relies upon the accuracy of the volatility distrib

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Lu, Quanyang, Yunliang Zhao, and Allen L. Robinson. "Comprehensive organic emission profiles for gasoline, diesel, and gas-turbine engines including intermediate and semi-volatile organic compound emissions." Atmospheric Chemistry and Physics 18, no. 23 (2018): 17637–54. http://dx.doi.org/10.5194/acp-18-17637-2018.

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Abstract. Emissions from mobile sources are important contributors to both primary and secondary organic aerosols (POA and SOA) in urban environments. We compiled recently published data to create comprehensive model-ready organic emission profiles for on- and off-road gasoline, gas-turbine, and diesel engines. The profiles span the entire volatility range, including volatile organic compounds (VOCs, effective saturation concentration C*=107–1011 µg m−3), intermediate-volatile organic compounds (IVOCs, C*=103–106 µg m−3), semi-volatile organic compounds (SVOCs, C*=1–102 µg m−3), low-volatile o

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Graham, Emelie L., Cheng Wu, David M. Bell, et al. "Volatility of aerosol particles from NO₃ oxidation of various biogenic organic precursors." Atmospheric Chemistry and Physics 23, no. 13 (2023): 7347–62. http://dx.doi.org/10.5194/acp-23-7347-2023.

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Abstract. Secondary organic aerosol (SOA) is formed through the oxidation of volatile organic compounds (VOCs), which can be of both natural and anthropogenic origin. While the hydroxyl radical (OH) and ozone (O3) are the main atmospheric oxidants during the day, the nitrate radical (NO3) becomes more important during the nighttime. Yet, atmospheric nitrate chemistry has received less attention compared to OH and O3. The Nitrate Aerosol and Volatility Experiment (NArVE) aimed to study the NO3-induced SOA formation and evolution from three biogenic VOCs (BVOCs), namely isoprene, α-pinene, and β

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Häkkinen, S. A. K., M. Äijälä, K. Lehtipalo, et al. "Long-term volatility measurements of submicron atmospheric aerosol in Hyytiälä, Finland." Atmospheric Chemistry and Physics Discussions 12, no. 5 (2012): 11201–44. http://dx.doi.org/10.5194/acpd-12-11201-2012.

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Abstract. The volatility of atmospheric 20–500 nm aerosol particles was investigated at a boreal forest site in Hyytiälä, Finland. Measurements were performed continuously between January 2008 and May 2010. The ambient aerosol sample was heated step-wise to six temperatures ranging from 80 °C to 280 °C and the total mass concentration of aerosol particles was determined from the measured particle number size distributions before and after heating assuming particle density of 1.6 g cm−3. On average 19% of the total aerosol mass stayed in the condensed phase even after heating to 280 °C. The obs

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Chinnasamy, G. P., S. Sundareswaran, K. S. Subramaniyan, K. Raja, P. R. Renganayaki, and S. Marimuthu. "Volatile organic compound analysis as advanced technology to detect seed quality in groundnut." Journal of Applied and Natural Science 14, no. 3 (2022): 885–94. http://dx.doi.org/10.31018/jans.v14i3.3617.

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An experiment was conducted to profiling the volatile organic compounds emitted from groundnut seeds during storage and also to assess the volatiles emission level during seed deterioration. Volatile organic compounds profiling of stored groundnut seeds was done through GC-MS at monthly intervals. The results showed that several volatile compounds were released from stored groundnut seeds and all the compounds are falling into eight major groups viz., alcohols, aldehydes, acids, esters, alkanes, alkenes, ketones and ethers. The study clearly demonstrated the influence of volatile organic compo

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Huang, Wei, Harald Saathoff, Xiaoli Shen, Ramakrishna Ramisetty, Thomas Leisner, and Claudia Mohr. "Seasonal characteristics of organic aerosol chemical composition and volatility in Stuttgart, Germany." Atmospheric Chemistry and Physics 19, no. 18 (2019): 11687–700. http://dx.doi.org/10.5194/acp-19-11687-2019.

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Abstract. The chemical composition and volatility of organic aerosol (OA) particles were investigated during July–August 2017 and February–March 2018 in the city of Stuttgart, one of the most polluted cities in Germany. Total non-refractory particle mass was measured with a high-resolution time-of-flight aerosol mass spectrometer (HR-ToF-AMS; hereafter AMS). Aerosol particles were collected on filters and analyzed in the laboratory with a filter inlet for gases and aerosols coupled to a high-resolution time-of-flight chemical ionization mass spectrometer (FIGAERO-HR-ToF-CIMS; hereafter CIMS),

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Slowik, J. G., J. P. S. Wong, and J. P. D. Abbatt. "Real-time, controlled OH-initiated oxidation of biogenic secondary organic aerosol." Atmospheric Chemistry and Physics Discussions 12, no. 3 (2012): 8183–224. http://dx.doi.org/10.5194/acpd-12-8183-2012.

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Abstract. The chemical complexity of atmospheric organic aerosol (OA) requires novel methods for characterization of its components and description of its atmospheric processing-induced transformations. We present the first field deployment of the Toronto Photooxidation Tube (TPOT), a field-deployable flow reactor for the controlled exposure of ambient aerosol to OH radicals. The system alternates between sampling of (1) unreacted ambient aerosol, (2) aerosol subjected to a ~4 °C temperature increase, and (3) aerosol that is both heated and oxidized by OH. This allows both characterization of

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Cai, Mingfu, Chenshuo Ye, Bin Yuan, et al. "Enhanced daytime secondary aerosol formation driven by gas–particle partitioning in downwind urban plumes." Atmospheric Chemistry and Physics 24, no. 22 (2024): 13065–79. http://dx.doi.org/10.5194/acp-24-13065-2024.

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Abstract. Anthropogenic emissions from city clusters can significantly enhance secondary organic aerosol (SOA) formation in the downwind regions, while the mechanism is poorly understood. To investigate the effect of pollutants within urban plumes on organic aerosol (OA) evolution, a field campaign was conducted at a downwind site of the Pearl River Delta region of China in the fall of 2019. A time-of-flight chemical ionization mass spectrometer coupled with the Filter Inlet for Gases and Aerosols (FIGAERO–CIMS) was used to probe the gas- and particle-phase molecular composition and thermogram

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Adebesin, Funmilayo, Joshua R. Widhalm, Benoît Boachon, et al. "Emission of volatile organic compounds from petunia flowers is facilitated by an ABC transporter." Science 356, no. 6345 (2017): 1386–88. http://dx.doi.org/10.1126/science.aan0826.

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Plants synthesize a diversity of volatile molecules that are important for reproduction and defense, serve as practical products for humans, and influence atmospheric chemistry and climate. Despite progress in deciphering plant volatile biosynthesis, their release from the cell has been poorly understood. The default assumption has been that volatiles passively diffuse out of cells. By characterization of aPetunia hybridaadenosine triphosphate–binding cassette (ABC) transporter, PhABCG1, we demonstrate that passage of volatiles across the plasma membrane relies on active transport.PhABCG1down-

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Karnezi, E., I. Riipinen, and S. N. Pandis. "Measuring the atmospheric organic aerosol volatility distribution: a theoretical analysis." Atmospheric Measurement Techniques Discussions 7, no. 1 (2014): 859–93. http://dx.doi.org/10.5194/amtd-7-859-2014.

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Abstract. Organic compounds represent a significant fraction of submicrometer atmospheric aerosol mass. Even if most of these compounds are semi-volatile in atmospheric concentrations, the ambient organic aerosol volatility is quite uncertain. The most common volatility measurement method relies on the use of a thermodenuder (TD). The aerosol passes through a heated tube where its more volatile components evaporate leaving the less volatile behind in the particulate phase. The typical result of a~thermodenuder measurement is the mass fraction remaining (MFR), which depends among other factors

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Xu, Weiqi, Conghui Xie, Eleni Karnezi, et al. "Summertime aerosol volatility measurements in Beijing, China." Atmospheric Chemistry and Physics 19, no. 15 (2019): 10205–16. http://dx.doi.org/10.5194/acp-19-10205-2019.

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Abstract. Volatility plays a key role in affecting mass concentrations and the lifetime of aerosol particles in the atmosphere, yet our knowledge of aerosol volatility in relatively polluted environment, e.g., north China, remains poor. Here aerosol volatility in Beijing in summer 2017 and 2018 was measured using a thermodenuder (TD) coupled with an Aerodyne high-resolution aerosol mass spectrometer (AMS) and a soot particle AMS. Our results showed overall similar thermograms for most non-refractory aerosol species compared with those reported in previous studies. However, high mass fraction r

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Fons, Françoise, Didier Froissard, Jean-Marie Bessière, Bruno Buatois, and Sylvie Rapior. "Biodiversity of Volatile Organic Compounds from Five French Ferns." Natural Product Communications 5, no. 10 (2010): 1934578X1000501. http://dx.doi.org/10.1177/1934578x1000501028.

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Five French ferns belonging to different families were investigated for volatile organic compounds (VOC) by GC-MS using organic solvent extraction. Fifty-five VOC biosynthesized from the shikimic, lipidic and terpenic pathways including monoterpenes, sesquiterpenes and carotenoid-type compounds were identified. The main volatile compound of Adiantum Capillus-Veneris L. (Pteridaceae) was ( E)-2-decenal with a plastic or “stink bug” odor. The volatile profiles of Athyrium filix-femina (L.) Roth (Woodsiaceae) and Blechnum spicant (L.) Roth (Blechnaceae) showed similarities, with small amounts of

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Raatikainen, T., P. Vaattovaara, P. Tiitta, et al. "Physicochemical properties and origin of organic groups detected in boreal forest using an aerosol mass spectrometer." Atmospheric Chemistry and Physics Discussions 9, no. 5 (2009): 21847–89. http://dx.doi.org/10.5194/acpd-9-21847-2009.

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Abstract. An Aerodyne quadrupole aerosol mass spectrometer (Q-AMS) was deployed in Hyytiälä, a forested rural measurement site in southern Finland, during a 2-week measurement campaign in spring 2005. Q-AMS measures mass concentrations of non-refractory species including sulphate, nitrate, ammonium and organics from submicron particles. A positive matrix factorization method was used in identifying two oxygenated organic aerosol (OOA) groups from the measured total organic mass. The properties of these groups were estimated from their diurnal concentration cycles and correlations with addition

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Kokkola, H., P. Yli-Pirilä, M. Vesterinen, et al. "The role of low volatile organics on secondary organic aerosol formation." Atmospheric Chemistry and Physics 14, no. 3 (2014): 1689–700. http://dx.doi.org/10.5194/acp-14-1689-2014.

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Abstract. Large-scale atmospheric models, which typically describe secondary organic aerosol (SOA) formation based on chamber experiments, tend to systematically underestimate observed organic aerosol burdens. Since SOA constitutes a significant fraction of atmospheric aerosol, this discrepancy translates into an underestimation of SOA contribution to radiative forcing of atmospheric aerosol. Here we show that the underestimation of SOA yields can be partly explained by wall losses of SOA forming compounds during chamber experiments. We present a chamber experiment where α-pinene and ozone are

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VKASM, Wanasinghe, Kumara ADNT, Ranaweera GKMMK, Chanchala KMG, Hemachandra KS, and Nugaliyadde L. "Resistance-Linked Volatile Profiles of Sugarcane Varieties in Sri Lanka and their Potential for Semiochemical-based Management of Chilo sacchariphagus indicus (Lepidoptera: Crambidae)." International Journal of Zoology and Animal Biology 8, no. 1 (2025): 1–12. https://doi.org/10.23880/izab-16000644.

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The sugarcane internode borer (INB), Chilo sacchariphagus indicus (Lepidoptera: Crambidae), poses a major challenge to sugarcane cultivation in Sri Lanka. Characterizing the volatile profiles of sugarcane varieties provides crucial insights for integrated pest management (IPM) strategies, particularly identification of attractant green leaf volatiles (GLVs). These compounds have the potential to be used for the development of Semiochemical based environmentally friendly pest control products, thereby promoting sustainable agriculture in the region. This study analyzed the volatility profiles o

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Karnezi, E., I. Riipinen, and S. N. Pandis. "Measuring the atmospheric organic aerosol volatility distribution: a theoretical analysis." Atmospheric Measurement Techniques 7, no. 9 (2014): 2953–65. http://dx.doi.org/10.5194/amt-7-2953-2014.

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Abstract. Organic compounds represent a significant fraction of submicrometer atmospheric aerosol mass. Even if most of these compounds are semi-volatile in atmospheric concentrations, the ambient organic aerosol volatility is quite uncertain. The most common volatility measurement method relies on the use of a thermodenuder (TD). The aerosol passes through a heated tube where its more volatile components evaporate, leaving the less volatile components behind in the particulate phase. The typical result of a thermodenuder measurement is the mass fraction remaining (MFR), which depends, among o

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Slowik, J. G., J. P. S. Wong, and J. P. D. Abbatt. "Real-time, controlled OH-initiated oxidation of biogenic secondary organic aerosol." Atmospheric Chemistry and Physics 12, no. 20 (2012): 9775–90. http://dx.doi.org/10.5194/acp-12-9775-2012.

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Abstract. The chemical complexity of atmospheric organic aerosol (OA) requires novel methods for characterization of its components and description of its atmospheric processing-induced transformations. We present the first field deployment of the Toronto Photooxidation Tube (TPOT), a field-deployable flow reactor for the controlled exposure of ambient aerosol to OH radicals. The system alternates between sampling of (1) (unreacted) ambient aerosol, (2) aerosol exposed to UV light and subjected to a ~4 to 10 °C temperature increase, and (3) aerosol that is oxidized by OH (in addition to the af

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Ciarelli, Giancarlo, Imad El Haddad, Emily Bruns, et al. "Constraining a hybrid volatility basis-set model for aging of wood-burning emissions using smog chamber experiments: a box-model study based on the VBS scheme of the CAMx model (v5.40)." Geoscientific Model Development 10, no. 6 (2017): 2303–20. http://dx.doi.org/10.5194/gmd-10-2303-2017.

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Abstract. In this study, novel wood combustion aging experiments performed at different temperatures (263 and 288 K) in a ∼ 7 m3 smog chamber were modelled using a hybrid volatility basis set (VBS) box model, representing the emission partitioning and their oxidation against OH. We combine aerosol–chemistry box-model simulations with unprecedented measurements of non-traditional volatile organic compounds (NTVOCs) from a high-resolution proton transfer reaction mass spectrometer (PTR-MS) and with organic aerosol measurements from an aerosol mass spectrometer (AMS). Due to this, we are able to

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Paciga, A., E. Karnezi, E. Kostenidou, et al. "Volatility of organic aerosol and its components in the Megacity of Paris." Atmospheric Chemistry and Physics Discussions 15, no. 16 (2015): 22263–89. http://dx.doi.org/10.5194/acpd-15-22263-2015.

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Abstract. Using a mass transfer model and the volatility basis set, we estimate the volatility distribution for the organic aerosol (OA) components during summer and winter in Paris, France as part of the collaborative project MEGAPOLI. The concentrations of the OA components as a function of temperature were measured combining data from a thermodenuder and an aerosol mass spectrometer (AMS) with Positive Matrix Factorization (PMF) analysis. The hydrocarbon-like organic aerosol (HOA) had similar volatility distributions for the summer and winter campaigns with half of the material in the satur

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Paciga, Andrea, Eleni Karnezi, Evangelia Kostenidou, et al. "Volatility of organic aerosol and its components in the megacity of Paris." Atmospheric Chemistry and Physics 16, no. 4 (2016): 2013–23. http://dx.doi.org/10.5194/acp-16-2013-2016.

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Abstract. Using a mass transfer model and the volatility basis set, we estimate the volatility distribution for the organic aerosol (OA) components during summer and winter in Paris, France as part of the collaborative project MEGAPOLI. The concentrations of the OA components as a function of temperature were measured combining data from a thermodenuder and an aerosol mass spectrometer (AMS) with Positive Matrix Factorization (PMF) analysis. The hydrocarbon-like organic aerosol (HOA) had similar volatility distributions for the summer and winter campaigns with half of the material in the satur

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Huang, Kerui, Hui Shang, Qiong Zhou, Yun Wang, Hui Shen, and Yuehong Yan. "Volatiles Induced from Hypolepis punctata (Dennstaedtiaceae) by Herbivores Attract Sclomina erinacea (Hemiptera: Reduviidae): Clear Evidence of Indirect Defense in Fern." Insects 12, no. 11 (2021): 978. http://dx.doi.org/10.3390/insects12110978.

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Plants have evolved various self-defense mechanisms against insect feeding. There are many reports regarding both direct and indirect defense mechanisms in seed-plant. However, only direct defenses on ferns were considered and the indirect defense mechanism has never been reported. In this study, it was observed that the fern Hypolepis punctata can attract the assassin bug Sclomina erinacea in the field. We collected and analyzed volatiles from H. punctata healthy individuals and the ones wounded by Bertula hadenalis, using dynamic headspace and GC-MS. We recorded the electroantennogram respon

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Qian, Qi, Jiarong Cui, Yuanyuan Miao, et al. "The Plant Volatile-Sensing Mechanism of Insects and Its Utilization." Plants 13, no. 2 (2024): 185. http://dx.doi.org/10.3390/plants13020185.

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Plants and insects are engaged in a tight relationship, with phytophagous insects often utilizing volatile organic substances released by host plants to find food and egg-laying sites. Using plant volatiles as attractants for integrated pest management is vital due to its high efficacy and low environmental toxicity. Using naturally occurring plant volatiles combined with insect olfactory mechanisms to select volatile molecules for screening has proved an effective method for developing plant volatile-based attractant technologies. However, the widespread adoption of this technique is still li

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Salo, K., M. Hallquist, Å. M. Jonsson, et al. "Volatility of secondary organic aerosol during OH radical induced ageing." Atmospheric Chemistry and Physics Discussions 11, no. 7 (2011): 19507–43. http://dx.doi.org/10.5194/acpd-11-19507-2011.

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Abstract. The aim of this study was to investigate oxidation of SOA formed from ozonolysis of α-pinene and limonene by hydroxyl radicals. This paper focuses on changes of particle volatility, using a Volatility Tandem DMA (VTDMA) set-up, in order to explain and elucidate the mechanism behind atmospheric ageing of the organic aerosol. The experiments were conducted at the AIDA chamber facility of KIT in Karlsruhe and at the SAPHIR chamber of FZJ in Jülich. A fresh SOA was produced from ozonolysis of α-pinene or limonene and then aged by enhanced OH exposure. As an OH-radical source in the AIDA-

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Salo, K., M. Hallquist, Å. M. Jonsson, et al. "Volatility of secondary organic aerosol during OH radical induced ageing." Atmospheric Chemistry and Physics 11, no. 21 (2011): 11055–67. http://dx.doi.org/10.5194/acp-11-11055-2011.

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Abstract. The aim of this study was to investigate oxidation of SOA formed from ozonolysis of α-pinene and limonene by hydroxyl radicals. This paper focuses on changes of particle volatility, using a Volatility Tandem DMA (VTDMA) set-up, in order to explain and elucidate the mechanism behind atmospheric ageing of the organic aerosol. The experiments were conducted at the AIDA chamber facility of Karlsruhe Institute of Technology (KIT) in Karlsruhe and at the SAPHIR chamber of Forchungzentrum Jülich (FZJ) in Jülich. A fresh SOA was produced from ozonolysis of α-pinene or limonene and then aged

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Davis, Peter M., and Michael C. Qian. "Effect of Ethanol on the Adsorption of Volatile Sulfur Compounds on Solid Phase Micro-Extraction Fiber Coatings and the Implication for Analysis in Wine." Molecules 24, no. 18 (2019): 3392. http://dx.doi.org/10.3390/molecules24183392.

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Complications in the analysis of volatile sulfur compounds (VSC) in wine using solid-phase microextraction (SPME) arise from sample variability. Constituents of the wine matrix, including ethanol, affect the volatility and adsorption of sulfur volatiles on SPME fiber coatings (Carboxen- polydimethylsiloxane(PDMS); DVB-Carboxen-PDMS and DVB-PDMS), which can impact sensitivity and accuracy. Here, several common wine sulfur volatiles, including hydrogen sulfide (H2S), methanethiol (MeSH), dimethyl sulfide (DMS), dimethyl disulfide (DMDS), dimethyl trisulfide (DMTS), diethyl disulfide (DEDS), meth

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Chinnasamy, G. P., S. Sundareswaran, K. S. Subramaniyan, et al. "Assessment of rice (Co 51) seed ageing through volatile organic compound analysis using Headspace-Solid Phase Micro Extraction/ Gas Chromatography-Mass Spectrometry (HS-SPME/GCMS)." Journal of Applied and Natural Science 14, no. 3 (2022): 903–13. http://dx.doi.org/10.31018/jans.v14i3.3725.

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Seed ageing is an inevitable process that reduces seed quality during storage. When seeds deteriorate as a result of the lipid peroxidation process, it leads to produce toxic volatile organic compounds. These volatiles served as an indicator for the viability of stored seeds. With this background, the study was conducted to profile the volatile organic compounds emitted from rice seeds during storage. Volatile profiling of stored rice var. Co 51 seeds was done through Headspace-Solid phase microextraction/ Gas chromatography-mass spectrometry (HS-SPME/GCMS). The study clearly demonstrated that

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Hunziker, Lukas, Denise Bönisch, Ulrike Groenhagen, Aurélien Bailly, Stefan Schulz, and Laure Weisskopf. "Pseudomonas Strains Naturally Associated with Potato Plants Produce Volatiles with High Potential for Inhibition of Phytophthora infestans." Applied and Environmental Microbiology 81, no. 3 (2014): 821–30. http://dx.doi.org/10.1128/aem.02999-14.

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ABSTRACTBacteria emit volatile organic compounds with a wide range of effects on bacteria, fungi, plants, and animals. The antifungal potential of bacterial volatiles has been investigated with a broad span of phytopathogenic organisms, yet the reaction of oomycetes to these volatile signals is largely unknown. For instance, the response of the late blight-causing agent and most devastating oomycete pathogen worldwide,Phytophthora infestans, to bacterial volatiles has not been assessed so far. In this work, we analyzed this response and compared it to that of selected fungal and bacterial pota

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Chrit, Mounir, Karine Sartelet, Jean Sciare, et al. "Modeling organic aerosol concentrations and properties during winter 2014 in the northwestern Mediterranean region." Atmospheric Chemistry and Physics 18, no. 24 (2018): 18079–100. http://dx.doi.org/10.5194/acp-18-18079-2018.

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Abstract. Organic aerosols are measured at a remote site (Ersa) on the cape of Corsica in the northwestern Mediterranean basin during the winter campaign of 2014 of the CHemistry and AeRosols Mediterranean EXperiment (CharMEx), when high organic concentrations from anthropogenic origins are observed. This work aims to represent the observed organic aerosol concentrations and properties (oxidation state) using the air-quality model Polyphemus with a surrogate approach for secondary organic aerosol (SOA) formation. Because intermediate and semi-volatile organic compounds (I/S-VOCs) are the main

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Cappa, C. D., and J. L. Jimenez. "Quantitative estimates of the volatility of ambient organic aerosol." Atmospheric Chemistry and Physics Discussions 10, no. 1 (2010): 1901–38. http://dx.doi.org/10.5194/acpd-10-1901-2010.

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Abstract. Measurements of the sensitivity of organic aerosol (OA, and its components) mass to changes in temperature were recently reported by Huffman et al. (2009) using a tandem thermodenuder-aerosol mass spectrometer (TD-AMS) system in Mexico City and the Los Angeles area. Here, we use these measurements to derive quantitative estimates of aerosol volatility within the framework of absorptive partitioning theory using a kinetic model of aerosol evaporation in the TD. OA volatility distributions (or "basis-sets") are determined using several assumptions as to the enthalpy of vaporization (ΔH

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Cappa, C. D., and J. L. Jimenez. "Quantitative estimates of the volatility of ambient organic aerosol." Atmospheric Chemistry and Physics 10, no. 12 (2010): 5409–24. http://dx.doi.org/10.5194/acp-10-5409-2010.

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Abstract. Measurements of the sensitivity of organic aerosol (OA, and its components) mass to changes in temperature were recently reported by Huffman et al.~(2009) using a tandem thermodenuder-aerosol mass spectrometer (TD-AMS) system in Mexico City and the Los Angeles area. Here, we use these measurements to derive quantitative estimates of aerosol volatility within the framework of absorptive partitioning theory using a kinetic model of aerosol evaporation in the TD. OA volatility distributions (or "basis-sets") are determined using several assumptions as to the enthalpy of vaporization (ΔH

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Gao, Chloe Y., Susanne E. Bauer, and Kostas Tsigaridis. "Can semi-volatile organic aerosols lead to fewer cloud particles?" Atmospheric Chemistry and Physics 18, no. 19 (2018): 14243–51. http://dx.doi.org/10.5194/acp-18-14243-2018.

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Abstract. The impact of condensing organic aerosols on activated cloud number concentration is examined in a new aerosol microphysics box model, MATRIX-VBS. The model includes the volatility basis set (VBS) framework coupled with the aerosol microphysical scheme MATRIX (Multiconfiguration Aerosol TRacker of mIXing state) that resolves aerosol mass and number concentrations and aerosol mixing state. By including the condensation of organic aerosols, the new model produces fewer activated particles compared to the original model, which treats organic aerosols as nonvolatile. Parameters such as a

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Tsimpidi, A. P., V. A. Karydis, A. Pozzer, S. N. Pandis, and J. Lelieveld. "ORACLE: a module for the description of ORganic Aerosol Composition and Evolution in the atmosphere." Geoscientific Model Development Discussions 7, no. 4 (2014): 5465–515. http://dx.doi.org/10.5194/gmdd-7-5465-2014.

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Abstract. A computationally efficient module for the description of organic aerosol (OA) partitioning and chemical aging has been developed and implemented into the EMAC atmospheric chemistry-climate model. The model simulates the formation of secondary organic aerosol (SOA) from semi-volatile (SVOCs), intermediate-volatility (IVOCs) and volatile organic compounds (VOCs). The model distinguishes SVOCs from biomass burning and all other combustion sources using two surrogate species for each source category with an effective saturation concentration at 298 K of C* = 0.1 and 10 μg m−3. Two addit

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