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1,023 Newest Publications about the topic ozone


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Investigation of O3‐Al2O3/H2O‐Al2O3 dielectric bilayer deposited by atomic‐layer deposition for GaN MOS capacitors

20-May-2016 | Zhen Shen, Liang He, Guilin Zhou, Yao Yao, Fan Yang, Yiqiang Ni, Yue Zheng, Deqiu Zhou, Jinping Ao, Baijun Zhang, Ya ..., physica status solidi (a), 2016

In this work, H2O‐Al2O3/O3‐Al2O3 insulating bilayers were grown on GaN by atomic‐layer deposition (ALD) technique using H2O vapor and O3 as oxidants. The electrical and material properties show that the H2O‐Al2O3/O3‐Al2O3 stack structure appeared to be an appropriate dielectric for GaN MOS ...


Ambient Ozone Control in a Photochemically Active Region: Short-Term Despiking or Long-Term Attainment?

12-May-2016 | Jiamin Ou; Zibing Yuan; Junyu Zheng; Zhijiong Huang; Min Shao; Zekun Li; Xiaobo Huang; Hai Guo; Peter K. K. Louie, Environmental Science & Technology, 2016

China has made significant progress decreasing the ambient concentrations of most air pollutants, but ozone (O3) is an exception. O3 mixing ratios during pollution episodes are far higher than the national standard in the Pearl River Delta (PRD), thus greater evidence-based control efforts are ...


Twenty years of ambient observations of nitrogen oxides and specified hydrocarbons in air masses dominated by traffic emissions in Germany

04-May-2016 | Christian Ehlers; Dieter Klemp; Franz Rohrer; Djuro Mihelcic; Robert Wegener; Astrid Kiendler-Scharr; Andreas Wahner, Faraday Discussions, 2016

The analysis of the individual composition of hydrocarbon (VOC) mixtures enables us to transform observed VOC-concentrations into their respective total VOC-reactivity versus OH radicals (RVOC = Σ(kOH+VOCi × [VOCi])). This is particularly useful because local ozone production essentially depends ...


Impacts of Polar Changes on the UV-induced Mineralization of Terrigenous Dissolved Organic Matter

04-May-2016 | Barbara Sulzberger; J. Samuel Arey, Environmental Science & Technology, 2016

Local climates in the Northern and Southern Hemisphere are influenced by Arctic Amplification and by interactions of the Antarctic ozone hole with climate change, respectively. Polar changes may affect hydroclimatic conditions in temperate regions, for example, by increasing the length and ...


TAML/H2O2 Oxidative Degradation of Metaldehyde: Pursuing Better Water Treatment for the Most Persistent Pollutants

03-May-2016 | Liang L. Tang; Matthew A. DeNardo; Chakicherla Gayathri; Roberto R. Gil; Rakesh Kanda; Terrence J. Collins, Environmental Science & Technology, 2016

The extremely persistent molluscicide, metaldehyde, widely used on farms and gardens, is often detected in drinking water sources of various countries at concentrations of regulatory concern. Metaldehyde contamination restricts treatment options. Conventional technologies for remediating dilute ...


Ozone production chemistry in the presence of urban plumes

26-Apr-2016 | W. H. Brune; B. C. Baier; J. Thomas; X. Ren; R. C. Cohen; S. E. Pusede; E. C. Browne; A. H. Goldstein; D. R. Gentner ..., Faraday Discussions, 2016

Ozone pollution affects human health, especially in urban areas on hot sunny days. Its basic photochemistry has been known for decades and yet it is still not possible to correctly predict the high ozone levels that are the greatest threat. The CalNex_SJV study in Bakersfield CA in May/June 2010 ...


Insights into the Electronic Structure of Ozone and Sulfur Dioxide from Generalized Valence Bond Theory: Addition of Hydrogen Atoms

26-Apr-2016 | Beth A. Lindquist; Tyler Y. Takeshita; Thom H. Dunning, Jr., Journal of Physical Chemistry A, 2016

Ozone (O3) and sulfur dioxide (SO2) are valence isoelectronic species, yet their properties and reactivities differ dramatically. In particular, O3 is highly reactive, whereas SO2 is chemically relatively stable. In this paper, we investigate serial addition of hydrogen atoms to both the terminal ...


Combining Land-Use Regression and Chemical Transport Modeling in a Spatiotemporal Geostatistical Model for Ozone and PM2.5

26-Apr-2016 | Meng Wang; Paul D. Sampson; Jianlin Hu; Michael Kleeman; Joshua P. Keller; Casey Olives; Adam A. Szpiro; Sverre Veda ..., Environmental Science & Technology, 2016

Assessments of long-term air pollution exposure in population studies have commonly employed land-use regression (LUR) or chemical transport modeling (CTM) techniques. Attempts to incorporate both approaches in one modeling framework are challenging. We present a novel geostatistical modeling ...


Sustainability, Vol. 8, Pages 389: Analysis of Environmental Impact for Concrete Using LCA by Varying the Recycling Components, the Compressive Strength and the Admixture Material Mixing

20-Apr-2016 | Kim, Taehyoung ; Tae, Sungho ; Chae, Chang U, Sustainability, 2016

Concrete is a type of construction material in which cement, aggregate, and admixture materials are mixed. When cement is produced, large amounts of substances that impact the environment are emitted during limestone extraction and clinker manufacturing. Additionally, the extraction of natural ...


α-Pinene Autoxidation Products May Not Have Extremely Low Saturation Vapor Pressures Despite High O:C Ratios

19-Apr-2016 | Theo Kurtén; Kirsi Tiusanen; Pontus Roldin; Matti Rissanen; Jan-Niclas Luy; Michael Boy; Mikael Ehn; Neil Donahue, Journal of Physical Chemistry A, 2016

COSMO-RS (conductor-like screening model for real solvents) and three different group-contribution methods were used to compute saturation (subcooled) liquid vapor pressures for 16 possible products of ozone-initiated α-pinene autoxidation, with elemental compositions C10H16O4–10 and ...


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