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812 Newest Publications about the topic ozone

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Virtues and limitations of Pittsburgh green for ozone detection

28-Feb-2015 | Carlos Castelló Beltrán; Elliott A. Palmer; Benjamin R. Buckley; Felipe Iza, Chemical Communication, 2015

A recently proposed 2′,7′-dichlorofluorescein (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 ...

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Impact of Temporary Freeway Closure on Regional Air Quality: A Lesson from Carmageddon in Los Angeles, United States

19-Feb-2015 | Andy Hong; Lisa Schweitzer; Wan Yang; Linsey C. Marr, Environmental Science & Technology, 2015

Large cities in the United States face multiple challenges in meeting federal air quality standards. One difficulty arises from the uncertainties in evaluating traffic-related air pollution, especially the formation of secondary pollutants such as ozone and some particulate matter. Current air ...

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IJERPH, Vol. 12, Pages 2277-2288: Air Pollution and Daily Clinic Visits for Headache in a Subtropical City: Taipei, Taiwan

17-Feb-2015 | Chiu, Hui-Fen ; Weng, Yi-Hao ; Chiu, Ya-Wen ; Yang, Chun-Yuh, International Journal of Environmental Research and Public Health, 2015

This study was undertaken to determine whether there was an association between air pollutant levels and daily clinic visits for headache in Taipei, Taiwan. Daily clinic visits for headache and ambient air pollution data for Taipei were obtained for the period from 2006–2011. The odds ratio of ...

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Interconnection of Reactive Oxygen Species Chemistry across the Interfaces of Atmospheric, Environmental, and Biological Processes

17-Feb-2015 | Josep M. Anglada; Marilia Martins-Costa; Joseph S. Francisco; Manuel F. Ruiz-López, Accounts of Chemical Research, 2015

ConspectusOxidation reactions are ubiquitous and play key roles in the chemistry of the atmosphere, in water treatment processes, and in aerobic organisms. Ozone (O3), hydrogen peroxide (H2O2), hydrogen polyoxides (H2Ox, x > 2), associated hydroxyl and hydroperoxyl radicals (HOx = OH and HO2), ...

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Infrared Spectroscopic Evidence for a Heterogeneous Reaction between Ozone and Sodium Oleate at the Gas–Aerosol Interface: Effect of Relative Humidity

16-Feb-2015 | Juan J. Nájera, Carl J. Percival, Andrew B. Horn, International Journal of Chemical Kinetics, 2015

ABSTRACT The heterogeneous ozonolysis of sodium oleate aerosols in an aerosol flow tube is reported under different relative humidity (RH%) conditions. Submicron sodium oleate particles were exposed to a known ozone concentration and the consumption of sodium oleate was monitored by infrared ...

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Reaction Kinetics of Ozone Gas in Paddy Grains

16-Feb-2015 | Ravi Pandiselvam, Venkatachalam Thirupathi, S. Anandakumar, Journal of Food Process Engineering, 2015

Abstract The present study was carried out to evaluate the effect of ozone on paddy grains in an airtight acrylic bin with the following three aspects: saturation time, decomposition kinetics and half‐life of ozone. Experiments were performed in different bed thickness (5 and 10 cm) and ...

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Highly sensitive amorphous In–Ga–Zn–O films for ppb-level ozone sensing: Effects of deposition temperature

15-Feb-2015 | Author(s): Chiu-Hsien Wu , Guo-Jhen Jiang , Kai-Wei Chang , Chin-Wei Lin , Kue-Lin Chen, Sensors and Actuators B: Chemical, 2015

Publication date: May 2015 Source:Sensors and Actuators B: Chemical, Volume 211 Author(s): Chiu-Hsien Wu , Guo-Jhen Jiang , Kai-Wei Chang , Chin-Wei Lin , Kue-Lin Chen Amorphous indium gallium zinc oxide (a-IGZO) films were grown and used to detect ozone gas. When the deposition ...

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[Report] Direct kinetic measurement of the reaction of the simplest Criegee intermediate with water vapor

13-Feb-2015 | Wen Chao; Jun-Ting Hsieh; Chun-Hung Chang; Jim Jr-Min Lin, Science , 2015

Carbonyl oxides, or Criegee intermediates, are important transient species formed in the reactions of unsaturated hydrocarbons with ozone. Although direct detection of Criegee intermediates has recently been realized, the main atmospheric sink of Criegee intermediates remains unclear. We report ...

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[Perspective] Just add water dimers

13-Feb-2015 | Mitchio Okumura, Science , 2015

Alkenes constitute a large fraction of the natural and human-made volatile organic compounds (VOCs) that are emitted into the troposphere. Their oxidation products degrade air quality and contribute to climate warming. Alkene oxidation is thought to involve Criegee intermediates (CIs), highly ...

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Characterization of Phospholipids by Two-Dimensional Liquid Chromatography Coupled to In-line Ozonolysis–Mass Spectrometry

03-Feb-2015 | Chenxing Sun; Yuan-Yuan Zhao; Jonathan M. Curtis, Journal of Agricultural and Food Chemistry, 2015

In this study, the characterization of phospholipids (PL) was achieved by using a combination of LC/MS/MS and two-dimensional LC/MS. A HILIC LC column was used for PL class separation, while the further molecular species separation of each PL class was achieved by using online HILIC × C18 LC. The ...

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