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1,039 Newest Publications about the topic ozone

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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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Sensory Analysis and Consumers Studies of Açai Beverage after Thermal, Chlorine and Ozone Treatments of the Fruits

07-Jun-2016 | Valeria S. Bezerra, Otniel Freitas‐Silva, Leandro Fernandes Damasceno, Alexandra Mara Goulart Nunes Mamede, Lourdes ..., Journal of Food Processing and Preservation, 2016

Abstract Açai is a fruit of the Amazon region consumed as beverage, pulp, and other products, being exported to many countries because of its peculiar characteristic flavor and antioxidant power potential. For Açai there is still a need for improving sanitizing processes, making it more ...

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Efficacy of Ozone Treatment on Mycotoxins and Fungal Reduction in Artificially Contaminated Soft Wheat Grains

07-Jun-2016 | F.M. Trombete, Y.D. Porto, O. Freitas‐Silva, R.V. Pereira, G.M. Direito, T. Saldanha, M.E. Fraga, Journal of Food Processing and Preservation, 2016

Abstract The effects of O3 concentration, exposure time and grain mass were evaluated on the levels of deoxynivalenol, aflatoxins and total fungal count (TFC) in wheat grains, using a full 23 factorial design. Grain samples were contaminated with fungal conidia and spiked with mycotoxins ...

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Organic Nitrate Contribution to New Particle Formation and Growth in Secondary Organic Aerosols from α-Pinene Ozonolysis

07-Jun-2016 | Thomas Berkemeier; Markus Ammann; Thomas F. Mentel; Ulrich Pöschl; Manabu Shiraiwa, Environmental Science & Technology, 2016

The chemical kinetics of organic nitrate production during new particle formation and growth of secondary organic aerosols (SOA) were investigated using the short-lived radioactive tracer 13N in flow-reactor studies of α-pinene oxidation with ozone. Direct and quantitative measurements of the ...

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Influence of nitrite on the degradation of atrazine by ozonation

02-Jun-2016 | Jingxin Yang, Ji Li, Wenyi Dong, Jun Ma, Jiayin Li, Journal of Chemical Technology & Biotechnology, 2016

Abstract BACKGROUD Nitrite is ubiquitous in natural water and wastewater. It is generally accepted nitrite is only served as an ozone consumer and poses a negative influence on the contaminants degradation during ozonation. Recently, nitrite was found to react with ozone to produce ∙OH. ...

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