Photochemical production of aerosols from real plant emissions

Mentel, T. F.; Wildt, Jürgen; Kiendler‐Scharr, Astrid; Kleist, E.; Tillmann, Ralf; Maso, Miikka Dal; Fisseha, R.; Hohaus, Thorsten; Spähn, H.; Uerlings, Ricarda; Wegener, Robert; Griffiths, Paul D.; Dinar, E.; Rudich, Yinon; Wahner, Andreas

doi:10.5194/acpd-9-3041-2009

Cited by 34 publications

(40 citation statements)

References 68 publications

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“…As a consequence, we need more data to learn about plant species dependent emission rates and involved processes affected by the environment and plant development. Additionally, mechanistic measurements of atmospheric chemical and physical reactions under the influence of real emissions from trees [Mentel et al, 2009], or estimation of total chemical reactivity in relation to known/unknown VOC species [Sinha et al, 2010] may demonstrate how far we understand the processes. Within this context, it is of great interest that new interpretations of chemical reactions and cycling of compounds involved in the production of oxidants be developed [Lelieveld et al, 2008].…”

Section: Discussionmentioning

confidence: 99%

Plant-specific volatile organic compound emission rates from young and mature leaves of Mediterranean vegetation

Bracho-Nuñez¹,

Welter²,

Staudt³

et al. 2011

J. Geophys. Res.

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[1] The seasonality of vegetation, i.e., developmental stages and phenological processes, affects the emission of volatile organic compounds (VOCs). Despite the potential significance, the contributions of seasonality to VOC emission quality and quantity are not well understood and are therefore often ignored in emission simulations. We investigated the VOC emission patterns of young and mature leaves of several Mediterranean plant species in relation to their physiological and developmental changes during the growing period and estimated E s . Foliar emissions of isoprenoids and oxygenated VOCs like methanol and acetone were measured online by means of a proton transfer reaction mass spectrometer (PTR-MS) and offline with gas chromatography coupled with a mass spectrometer and flame ionization detector. The results suggest that VOC emission is a developmentally regulated process and that quantitative and qualitative variability is plant species specific. Leaf ontogeny clearly influenced both the VOC E s and the relative importance of different VOCs. Methanol was the major compound contributing to the sum of target VOC emissions in young leaves (11.8 ± 10.4 mg g −1 h −1 ), while its contribution was minor in mature leaves (4.1 ± 4.1 mg g −1 h −1 ). Several plant species showed a decrease or complete subsidence of monoterpene, sesquiterpene, and acetone emissions upon maturity, perhaps indicating a potential response to the higher defense demands of young emerging leaves.Citation: Bracho-Nunez, A., S. Welter, M. Staudt, and J. Kesselmeier (2011), Plant-specific volatile organic compound emission rates from young and mature leaves of Mediterranean vegetation,

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Section: Discussionmentioning

confidence: 99%

Plant-specific volatile organic compound emission rates from young and mature leaves of Mediterranean vegetation

Bracho-Nuñez¹,

Welter²,

Staudt³

et al. 2011

J. Geophys. Res.

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“…2,205 Volatile organic compounds (VOCs) produced by terrestrial plants can contribute to aerosol production. 206,207 The effects of UV-B radiation on these emissions appear to vary between different types of plant VOC, 208-210 but new evidence has shown that compounds produced by plants in response to UV exposure can form a major element of VOC emission and aerosol production from desert ecosystems. 211…”

Section: Aerosolsmentioning

confidence: 99%

Effects of solar UV radiation and climate change on biogeochemical cycling: interactions and feedbacks

Zepp

Erickson

Paul

et al. 2011

Photochem Photobiol Sci

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Solar UV radiation, climate and other drivers of global change are undergoing significant changes and models forecast that these changes will continue for the remainder of this century. Here we assess the effects of solar UV radiation on biogeochemical cycles and the interactions of these effects with climate change, including feedbacks on climate. Such interactions occur in both terrestrial and aquatic ecosystems. While there is significant uncertainty in the quantification of these effects, they could accelerate the rate of atmospheric CO(2) increase and subsequent climate change beyond current predictions. The effects of predicted changes in climate and solar UV radiation on carbon cycling in terrestrial and aquatic ecosystems are expected to vary significantly between regions. The balance of positive and negative effects on terrestrial carbon cycling remains uncertain, but the interactions between UV radiation and climate change are likely to contribute to decreasing sink strength in many oceanic regions. Interactions between climate and solar UV radiation will affect cycling of elements other than carbon, and so will influence the concentration of greenhouse and ozone-depleting gases. For example, increases in oxygen-deficient regions of the ocean caused by climate change are projected to enhance the emissions of nitrous oxide, an important greenhouse and ozone-depleting gas. Future changes in UV-induced transformations of aquatic and terrestrial contaminants could have both beneficial and adverse effects. Taken in total, it is clear that the future changes in UV radiation coupled with human-caused global change will have large impacts on biogeochemical cycles at local, regional and global scales.

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“…Eucalypts, dominant emitters of eucalyptol, are present globally with many different species, and it is likely that they 285 are globally important for SOA formation. Previously reported low thresholds of new particle formation from species containing high proportions of oxygenated monoterpenes (Mentel et al, 2009) could be explained by the high oligomer content of the SOA we have observed for these VOCs and in the mixtures. High oligomer content has been shown to influence particle viscosity by intra-and inter-molecular hydrogen bonding between oligomers (Huang et al, 2018), and thus our results could indicate very different physicochemical properties for SOA generated from plants which contain high proportions of oxygenated monoterpenes.…”

Section: Conclusion and Implications 270mentioning

confidence: 49%

Oligomer and highly oxygenated organic molecule formation from oxidation of oxygenated monoterpenes emitted by California sage plants

Mehra¹,

Krechmer²,

Lambe³

et al. 2020

Preprint

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Abstract. Plants emit a diverse range of biogenic volatile organic compounds (BVOC) whose oxidation leads to secondary organic aerosol (SOA) formation. The majority of studies of biogenic SOA have focused on single or simple multi-component BVOC mixtures thought to be representative of Northern Hemispheric deciduous or mixed forest conditions. Gaps remain in our understanding of SOA formation from complex mixtures of real plant emissions in other environments. Towards the goal of understanding SOA in other regions, we conducted the first comprehensive study of SOA from oxygenated monoterpenes. These are the dominant emissions from the most common plant species in southern California’s coastal sage ecosystem: black sage (Salvia mellifera) and California sagebrush (Artemisia californica). Emissions from sage plants, and single compounds representing their major emissions (camphor, camphene and eucalyptol), were oxidised in an Aerodyne potential aerosol mass oxidation flow reactor (PAM-OFR). The chemical composition of SOA was characterised using a high-resolution time-of-flight iodide-anion chemical-ionization mass spectrometer equipped with a Filter Inlet for Gases and AEROsols (FIGAERO-I-HR-ToF-CIMS) under low and medium-NOx conditions. SOA from oxygenated monoterpenes showed higher order oligomer content and a greater presence of highly oxygenated organic molecules (HOM) than non-oxygenated monoterpenes, with HOM contributing 27–47 % and 12–14 % of SOA product signal from oxygenated and non-oxygenated monoterpenes, respectively. This study highlights the potential importance of oxygenated monoterpene emissions for SOA formation in woody shrub ecosystems.

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Photochemical production of aerosols from real plant emissions

Cited by 34 publications

References 68 publications

Plant-specific volatile organic compound emission rates from young and mature leaves of Mediterranean vegetation

Plant-specific volatile organic compound emission rates from young and mature leaves of Mediterranean vegetation

Effects of solar UV radiation and climate change on biogeochemical cycling: interactions and feedbacks

Oligomer and highly oxygenated organic molecule formation from oxidation of oxygenated monoterpenes emitted by California sage plants

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