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1,043 Newest Publications about the topic ozone

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[Research Article] Emergence of healing in the Antarctic ozone layer

15-Jul-2016 | Susan Solomon; Diane J. Ivy; Doug Kinnison; Michael J. Mills; Ryan R. Neely; Anja Schmidt, Science , 2016

Industrial chlorofluorocarbons that cause ozone depletion have been phased out under the Montreal Protocol. A chemically driven increase in polar ozone (or “healing”) is expected in response to this historic agreement. Observations and model calculations together indicate that healing of the ...

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Electrons Mediate the Gas‐Phase Oxidation of Formic Acid with Ozone

12-Jul-2016 | Christian Van Der Linde, Wai Kit Tang, Chi-Kit Siu, Martin K. Beyer, Chemistry - A European Journal, 2016

Gas‐phase reactions of CO3●‐ with formic acid are studied using Fourier transform ion cyclotron resonance (FT‐ICR) mass spectrometry. Signal loss indicates the release of a free electron, with the formation of neutral reaction products. This is corroborated by adding traces of SF6 to the ...

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IJERPH, Vol. 13, Pages 694: Health Impact Assessment of Air Pollution in São Paulo, Brazil

11-Jul-2016 | Abe, Karina Camasmie; Miraglia, Simone Georges El Khouri, International Journal of Environmental Research and Public Health, 2016

Epidemiological research suggests that air pollution may cause chronic diseases, as well as exacerbation of related pathologies such as cardiovascular and respiratory morbidity and mortality. This study evaluates air pollution scenarios considering a Health Impact Assessment approach in São ...

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[In Depth] CFC bans pay off as Antarctic ozone layer starts to mend

01-Jul-2016 | Eric Hand, Science , 2016

Ever since its discovery in 1985, the springtime ozone hole over Antarctica has been an insistent reminder of humankind's ability to cause environmental harm. But the wound has begun to heal: There is now evidence that the hole is shrinking. The 1987 Montreal Protocol phased out ozone-destroying ...

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Full-Dimensional Model of Ozone Forming Reaction: Absolute Value of Recombination Rate Coefficient, its Pressure and Temperature Dependencies

22-Jun-2016 | Alexander Teplukhin; Dmitri Babikov, Physical Chemistry Chemical Physics, 2016

Rigorous calculations of scattering resonances in ozone are carried out for a broad range of rotational excitations. Accurate potential energy surface of Dawes is adopted, and a new efficient method for calculations of ro-vibrational energies, wave functions and resonance lifetimes is employed ...

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Comparison of different sample treatments for the determination of As, Cd, Cu, Ni, Pb and Zn in globe artichoke (Cynara cardunculus L. subsp. Cardunculus)

18-Jun-2016 | Author(s): Ignacio Machado, Isabel Dol, Esteban Rodríguez-Arce, María Verónica Cesio, Mariela Pistón, Microchemical Journal, 2016

Publication date: September 2016 Source:Microchemical Journal, Volume 128 Author(s): Ignacio Machado, Isabel Dol, Esteban Rodríguez-Arce, María Verónica Cesio, Mariela Pistón New and environmentally friendly procedures for the determination of nutritious and harmful elements in ...

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Trends analyses of 30 years of ambient 8 hour ozone and precursor monitoring data in the South Central U.S.: progress and challenges

15-Jun-2016 | Mark E. Sather; Kevin Cavender, Journal of Environmental Monitoring, 2016

In the last 30 years ambient ozone concentrations have notably decreased in the South Central U.S. Yet, current ambient ozone concentrations measured over the past three years 2013–2015 in this area of the U.S. are not meeting the U.S. 2015 8 hour ozone standard of 70 parts per billion (ppb). ...

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Ozonized carbon black induces mitochondrial dysfunction and DNA damage

14-Jun-2016 | Xin Gao, Huadong Xu, Jing Shang, Lan Yuan, Yongming Zhang, Lele Wang, Wenxiao Zhang, Xianguo Luan, Guiping Hu, Hongq ..., Environmental Toxicology, 2016

ABSTRACT Black carbon and tropospheric ozone (O3), which are major air pollutants in China, are hazardous to humans following inhalation. Black carbon can be oxidized by O3 forming secondary particles of which the health effects are unknown. The present study utilized carbon black as a ...

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Flexible and Bio‐Based Nonisocyanate Polyurethane (NIPU) Foams

10-Jun-2016 | Hannes Blattmann, Marc Lauth, Rolf Mülhaupt, Macromolecular Materials and Engineering, 2016

The amine cure of cyclic carbonate blends, derived from renewable resources and carbon dioxide, in the presence of a liquid fluorohydrocarbon as physical blowing agent with no ozone depletion potential, enables the facile tailoring of flexible bio‐based nonisocyanate polyurethane (NIPU) foams. ...

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Effect of Ambient Temperature on Total Organic Gas Speciation Profiles from Light-Duty Gasoline Vehicle Exhaust

10-Jun-2016 | Anirban Roy; Darrell Sonntag; Richard Cook; Catherine Yanca; Charles Schenk; Yunsoo Choi, Environmental Science & Technology, 2016

Total organic gases (TOG) emissions from motor vehicles include air toxic compounds and contribute to formation of ground-level ozone and secondary organic aerosol (SOA). These emissions are known to be affected by temperature; however previous studies have typically focused only on the ...

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