Atmospheric hydrogen peroxide: Evidence for aqueous-phase formation from a historic perspective and a one-year measurement campaign

Möller, Detlev

doi:10.1016/j.atmosenv.2009.08.013

Cited by 48 publications

(46 citation statements)

References 86 publications

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“…The peak H 2 O 2 concentration in sample C is likely a result of the low volume of rain obtained during this period, as indicated by the peak deposition occurring in sample B. The higher H 2 O 2 concentrations recorded for samples collected during the peak sunlight intensity daylight hours is similar to the pattern observed for hydrogen peroxide in non-tropical events measured at this location during the summer (Avery et al, 2001) and are most likely due to photochemical generation of H 2 O 2 in the gas phase from hydroperoxy radicals, which are subsequently scavenged into the aqueous phase as rain (Gunz and Hoffmann, 1990;Moller, 2009). Concentrations decreased to below 1.5 µM for much of the remaining duration of the storm, which occurred throughout the night and morning of 27 August.…”

Section: Hydrogen Peroxide From Photochemical Productionsupporting

confidence: 54%

Dynamics of the chemical composition of rainwater throughout Hurricane Irene

et al. 2013

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Abstract. Sequential sampling of rainwater from Hurricane Irene was carried out in Wilmington, NC, USA on 26 and 27 August 2011. Eleven samples were analyzed for pH, major ions (Cl−, NO3−, SO42−, Na+, K+, Mg2+, Ca2+, NH4+), dissolved organic carbon (DOC) and hydrogen peroxide (H2O2). Hurricane Irene contributed 16% of the total rainwater and 18% of the total chloride wet deposition received in Wilmington NC during all of 2011. This work highlights the main physical factors influencing the chemical composition of tropical storm rainwater: wind speed, wind direction, back trajectory and vertical mixing, time of day and total rain volume. Samples collected early in the storm, when winds blew out of the east, contained dissolved components indicative of marine sources (salts from sea spray and low DOC). The sea-salt components in the samples had two maxima in concentration during the storm the first of which occurred before the volume of rain had sufficiently washed out sea salt from the atmosphere and the second when back trajectories showed large volumes of marine surface air were lifted. As the storm progressed and winds shifted to a westerly direction, the chemical composition of the rainwater became characteristic of terrestrial storms (high DOC and NH4+ and low sea salt). This work demonstrates that tropical storms are not only responsible for significant wet deposition of marine components to land, but terrestrial components can also become entrained in rainwater, which can then be delivered to coastal waters via wet deposition. This study also underscores why analysis of one composite sample can lead to an incomplete interpretation of the factors that influence the chemically divergent analytes in rainwater during extreme weather events.

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Section: Hydrogen Peroxide From Photochemical Productionsupporting

confidence: 54%

Dynamics of the chemical composition of rainwater throughout Hurricane Irene

et al. 2013

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“…The diurnal profile of PAA was similar to those of H 2 O 2 and MHP. This can be explained by vertical mixing and local photochemical production in a sunlit day (Möller et al, , 2009. From sunrise, the inversion layer was broken and PAA was transported down by vertical mixing.…”

Section: General Observationsmentioning

confidence: 99%

“…The elevated H 2 O 2 at night can be probably ascribed to its particular sources. First, it has been proved that the ozonolysis of alkenes contributes to the production of H 2 O 2 at night (Becker et al, 1990;Gäb et al, 1995;Grossmann et al, 2003;Möller, 2009). During 03:00-06:00 LT, O 3 dropped down to several ppbv, while a peak of H 2 O 2 occurred simultaneously.…”

Section: Paa-h 2 O 2 −Mhp Relationshipmentioning

confidence: 99%

Peroxyacetic acid in urban and rural atmosphere: concentration, feedback on PAN-NOx cycle and implication on radical chemistry

Zhang

Chen

et al. 2010

Atmos. Chem. Phys.

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Abstract. Peroxyacetic acid (PAA) is one of the most important atmospheric organic peroxides, which have received increasing attention for their potential contribution to the oxidation capacity of the troposphere and the formation of secondary aerosols. We report here, for the first time, a series of data for atmospheric PAA concentrations at urban and rural sites, from five field campaigns carried out in China in summer 2006, 2007 and 2008. For these five measurements, daytime mean (08:00-20:00 LT) PAA concentrations on sunlit days were 21.4-148.0 pptv with a maximum level of ∼1 ppbv. The various meteorological and chemical parameters influencing PAA concentrations were examined using Principal Factor Analysis. This statistical analysis shows that the local photochemical production was the major source of PAA, and its concentration increased with increasing temperature, solar radiation and ozone but decreased with increasing NO x (NO and NO 2 ), CO, SO 2 , and relative humidity. Based on the dataset, several issues are highlighted in this study: (i) Because PAA is a product from the photochemical oxidation of some specific volatile organic compounds (VOCs) that lead to acetyl peroxy radicals, the importance of various VOCs with respect to the PAA formation is therefore ranked using the incremental reactivity method. (ii) The contribution of PAN thermal degradation to PAA formation under conditions of different NO x concentrations is estimated based on the chemical kinetics analysis. The result shows that PAN seems to play an important role in the formation of PAA when the NO/NO 2 concentration ratio was less than 0.2 and PAA would correspondingly have feedback on the PAN-NO x cycle. (iii) PAA and other peroxides, such as methyl Correspondence to: Z. M. Chen (zmchen@pku.edu.cn) hydroperoxide (MHP) and H 2 O 2 , usually exhibited a similar asymmetric shape typically shifted to the afternoon. However, under some conditions, H 2 O 2 diurnal cycle was out of phase with MHP and PAA. The combination of linear regression and kinetics analysis indicate that the formation and removal processes of H 2 O 2 may be different from those of MHP and PAA. (iv) Considering that PAA is the reservior of free radicals, its fate is expected to have an effect on the free radical budget in the atmosphere. A box model based on the CBM-IV mechanism has been performed to access its influence on the radical budget. We suggest that the detailed information on PAA in the atmosphere is of importance to better understand the free radical chemistry.

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“…In this liquid phase, it is also produced by aqueous-phase reactivity (Möller, 2009). Several field campaigns have reported H 2 O 2 concentrations in atmospheric water in the µM range (Gunz and Hoffmann, 1990;Marinoni et al, 2011;Deguillaume et al, 2014;Li et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

H2O2 modulates the energetic metabolism of the cloud microbiome

et al. 2017

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Abstract. Chemical reactions in clouds lead to oxidation processes driven by radicals (mainly HO q , NO q 3 , or HO q 2 ) or strong oxidants such as H 2 O 2 , O 3 , nitrate, and nitrite. Among those species, hydrogen peroxide plays a central role in the cloud chemistry by driving its oxidant capacity. In cloud droplets, H 2 O 2 is transformed by microorganisms which are metabolically active. Biological activity can therefore impact the cloud oxidant capacity. The present article aims at highlighting the interactions between H 2 O 2 and microorganisms within the cloud system.First, experiments were performed with selected strains studied as a reference isolated from clouds in microcosms designed to mimic the cloud chemical composition, including the presence of light and iron. Biotic and abiotic degradation rates of H 2 O 2 were measured and results showed that biodegradation was the most efficient process together with the photo-Fenton process. H 2 O 2 strongly impacted the microbial energetic state as shown by adenosine triphosphate (ATP) measurements in the presence and absence of H 2 O 2 . This ATP depletion was not due to the loss of cell viability. Secondly, correlation studies were performed based on real cloud measurements from 37 cloud samples collected at the PUY station (1465 m a.s.l., France). The results support a strong correlation between ATP and H 2 O 2 concentrations and confirm that H 2 O 2 modulates the energetic metabolism of the cloud microbiome. The modulation of microbial metabolism by H 2 O 2 concentration could thus impact cloud chemistry, in particular the biotransformation rates of carbon compounds, and consequently can perturb the way the cloud system is modifying the global atmospheric chemistry.

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Atmospheric hydrogen peroxide: Evidence for aqueous-phase formation from a historic perspective and a one-year measurement campaign

Cited by 48 publications

References 86 publications

Dynamics of the chemical composition of rainwater throughout Hurricane Irene

Dynamics of the chemical composition of rainwater throughout Hurricane Irene

Peroxyacetic acid in urban and rural atmosphere: concentration, feedback on PAN-NO<sub>x</sub> cycle and implication on radical chemistry

H<sub>2</sub>O<sub>2</sub> modulates the energetic metabolism of the cloud microbiome

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Atmospheric hydrogen peroxide: Evidence for aqueous-phase formation from a historic perspective and a one-year measurement campaign

Cited by 48 publications

References 86 publications

Dynamics of the chemical composition of rainwater throughout Hurricane Irene

Dynamics of the chemical composition of rainwater throughout Hurricane Irene

Peroxyacetic acid in urban and rural atmosphere: concentration, feedback on PAN-NO&lt;sub&gt;x&lt;/sub&gt; cycle and implication on radical chemistry

H&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;2&lt;/sub&gt; modulates the energetic metabolism of the cloud microbiome

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Peroxyacetic acid in urban and rural atmosphere: concentration, feedback on PAN-NO<sub>x</sub> cycle and implication on radical chemistry

H<sub>2</sub>O<sub>2</sub> modulates the energetic metabolism of the cloud microbiome