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791 Newest Publications about the topic ozone

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Environmental effects of ozone depletion and its interactions with climate change: 2014 assessment

16-12-2014 | Photochemical & Photobiological Sciences, 2014

Photochem. Photobiol. Sci., 2015, Advance ArticleDOI: 10.1039/C4PP90042A, Editorial To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry

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Environmental effects of ozone depletion and its interactions with climate change: 2014 assessment

16-12-2014 | Photochemical & Photobiological Sciences, 2014

Photochem. Photobiol. Sci., 2015, Advance ArticleDOI: 10.1039/C4PP90040E, Editorial To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry

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Carbon Dioxide Capture with the Ozone-like Polynitrogen Molecule Li3N3

12-12-2014 | Miquel Torrent-Sucarrat; António J. C. Varandas, Journal of Physical Chemistry A, 2014

In a very recent article (Chem.—Eur. J. 2014, 20, 6636), Olson et al. performed a theoretical study of the low-lying isomers of Li3N3 and found that two of the most stable structures show a novel N33– molecular motif, which possesses structural and chemical bonding features similar to ozone. We ...

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Kinetics of Active Oxygen Species with Implications for Atmospheric Ozone Chemistry

11-12-2014 | V. N. Azyazov, M. C. Heaven, International Journal of Chemical Kinetics, 2014

ABSTRACT Photochemical processes involving singlet oxygen (O2(a1Δ)), oxygen atoms, and ozone are critical in determining atmospheric ozone concentrations. Here we report on kinetic measurements and modeling that examine the importance of the reactions of vibrationally excited ozone. Oxygen ...

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Solar ultraviolet radiation and ozone depletion-driven climate change: effects on terrestrial ecosystems

09-12-2014 | J. F. Bornman; P. W. Barnes; S. A. Robinson; C. L. Ballaré; S. D. Flint; M. M. Caldwell, Photochemical & Photobiological Sciences, 2014

In this assessment we summarise advances in our knowledge of how UV-B radiation (280–315 nm), together with other climate change factors, influence terrestrial organisms and ecosystems. We identify key uncertainties and knowledge gaps that limit our ability to fully evaluate the interactive ...

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Virtues and limitations of Pittsburgh green for ozone detection

09-12-2014 | Benjamin R Buckley; Felipe Iza; Carlos Castello-Beltran; Elliott A Palmer, Chemical Communication, 2014

A recently proposed DCF-derived fluorescent probe for the detection of ozone shows good selectivity against a number of reactive oxygen species and good pH stability for biological and environmental applications. It is found, however, that over oxidation of the fluorescent product (Pittsburgh ...

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Global emissions of refrigerants HCFC-22 and HFC-134a: Unforeseen seasonal contributions [Earth, Atmospheric, and Planetary Sciences]

09-12-2014 | Bin Xiang; Prabir K. Patra; Stephen A. Montzka; Scot M. Miller; James W. Elkins; Fred L. Moore; Elliot L. Atlas; Ben ..., Proceedings of the National Academy of Sciences current issue, 2014

HCFC-22 (CHClF2) and HFC-134a (CH2FCF3) are two major gases currently used worldwide in domestic and commercial refrigeration and air conditioning. HCFC-22 contributes to stratospheric ozone depletion, and both species are potent greenhouse gases. In this work, we study in situ observations of ...

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Recent Trends in Global Emissions of Hydrochlorofluorocarbons and Hydrofluorocarbons: Reflecting on the 2007 Adjustments to the Montreal Protocol

08-12-2014 | S. A. Montzka; M. McFarland; S. O. Andersen; B. R. Miller; D. W. Fahey; B. D. Hall; L. Hu; C. Siso; J. W. Elkins, Journal of Physical Chemistry A, 2014

Global-scale atmospheric measurements are used to investigate the effectiveness of recent adjustments to production and consumption controls on hydrochlorofluorocarbons (HCFCs) under the Montreal Protocol on Substances that Deplete the Ozone Layer (Montreal Protocol) and to assess recent ...

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Catechol Oxidation by Ozone and Hydroxyl Radicals at the Air–Water Interface

05-12-2014 | Elizabeth A. Pillar; Robert C. Camm; Marcelo I. Guzman, Environmental Science & Technology, 2014

Anthropogenic emissions of aromatic hydrocarbons promptly react with hydroxyl radicals undergoing oxidation to form phenols and polyphenols (e.g., catechol) typically identified in the complex mixture of humic-like substances (HULIS). Because further processing of polyphenols in secondary organic ...

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High-Resolution Mass Spectrometry and Molecular Characterization of Aqueous Photochemistry Products of Common Types of Secondary Organic Aerosols

01-12-2014 | Dian E. Romonosky; Alexander Laskin; Julia Laskin; Sergey A. Nizkorodov, Journal of Physical Chemistry A, 2014

This work presents a systematic investigation of the molecular level composition and the extent of aqueous photochemical processing in different types of secondary organic aerosol (SOA) from biogenic and anthropogenic precursors including α-pinene, β-pinene, β-myrcene, d-limonene, α-humulene, ...

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