Journal articles on the topic 'Ozone detection'

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1

Noll, K. S., R. E. Johnson, A. L. Lane, D. L. Domingue, and H. A. Weaver. "Detection of Ozone on Ganymede." Science 273, no. 5273 (July 19, 1996): 341–43. http://dx.doi.org/10.1126/science.273.5273.341.

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2

Knake, René, and Peter C. Hauser. "Sensitive electrochemical detection of ozone." Analytica Chimica Acta 459, no. 2 (May 2002): 199–207. http://dx.doi.org/10.1016/s0003-2670(02)00121-6.

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3

Mott, P. H., and C. M. Roland. "Ozone Detection by Crack-Induced Opacity in Rubber." Rubber Chemistry and Technology 72, no. 4 (September 1, 1999): 769–78. http://dx.doi.org/10.5254/1.3538833.

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Abstract Initially transparent polybutadiene develops micron-sized surface cracks when stretched and exposed to ozone. The consequent reduction in the transparency of the rubber provides a facile method for quantifying the ambient ozone concentration. The rate at which opacity develops is linearly dependent on the amount of ozone, and increases with increasing strain. This method of detecting atmospheric ozone has high sensitivity (1 ppb), a broad dynamic range, and is unaffected by the presence of other chemicals. The surface morphology of exposed material can be interpreted in terms of crack nucleation and growth.
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4

Olsen, K. S., F. Lefèvre, F. Montmessin, A. Trokhimovskiy, L. Baggio, A. Fedorova, J. Alday, et al. "First detection of ozone in the mid-infrared at Mars: implications for methane detection." Astronomy & Astrophysics 639 (July 2020): A141. http://dx.doi.org/10.1051/0004-6361/202038125.

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Aims. The ExoMars Trace Gas Orbiter was sent to Mars in March 2016 to search for trace gases diagnostic of active geological or biogenic processes. Methods. We report the first observation of the spectral features of Martian ozone (O3) in the mid-infrared range using the Atmospheric Chemistry Suite Mid-InfaRed (MIR) channel, a cross-dispersion spectrometer operating in solar occultation mode with the finest spectral resolution of any remote sensing mission to Mars. Results. Observations of ozone were made at high northern latitudes (>65°N) prior to the onset of the 2018 global dust storm (Ls = 163–193°). During this fast transition phase between summer and winter ozone distribution, the O3 volume mixing ratio observed is 100–200 ppbv near 20 km. These amounts are consistent with past observations made at the edge of the southern polar vortex in the ultraviolet range. The observed spectral signature of ozone at 3000–3060 cm−1 directly overlaps with the spectral range of the methane (CH4) ν3 vibration-rotation band, and it, along with a newly discovered CO2 band in the same region, may interfere with measurements of methane abundance.
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5

De Maria, Letizia, and Giuseppe Rizzi. "Ozone Sensor for Application in Medium Voltage Switchboard." Journal of Sensors 2009 (2009): 1–5. http://dx.doi.org/10.1155/2009/608714.

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The application of a new spectroscopic type fiber sensor for ozone detection in electrical components of Medium Voltage (MV) network is evaluated. The sensor layout is based on the use of an optical retroreflector, to improve the detection sensitivity, and it was especially designed for detecting in situ rapid changes of ozone concentration. Preliminary tests were performed in a typical MV switchboard. Artificial defects simulated predischarge phenomena arising during real operating conditions. Results are discussed by a comparison with data simultaneously acquired with a standard partial discharge system.
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6

Fang, Yuan, He Meng, Chuanwen Xue, Wei Wei, and Lian Xue. "Real-Time Monitoring and Early Warning Algorithm of Ozone + Nitrogen Oxides in High-Density Residential Space Based on Big Data." Mobile Information Systems 2022 (May 31, 2022): 1–7. http://dx.doi.org/10.1155/2022/8945433.

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In order to monitor ozone and nitrous oxide pollutants in residential space, artificial intelligence algorithm is integrated on the basis of traditional monitoring mode. Through the comparison of system detection accuracy and early warning sensitivity of different detection methods, it can be seen that the application of artificial intelligence detection system can improve the monitoring performance of ozone and realize the timeliness of large-scale monitoring coverage and data update. The accuracy and sensitivity of system detection under the two detection methods are analyzed, and the main harm caused by ozone pollution is analyzed. The significance of monitoring ozone pollution in ambient air is emphasized. The air index of high-density residential space using intelligent big data detection method is obviously superior to previous detection methods in terms of timeliness, accuracy, and early warning sensitivity of the system. It also provides an important data reference for the real-time monitoring and early warning of ozone + nitrogen oxides in high-density residential space, and also makes an important contribution to reducing the impact on residents’ health and living environment.
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7

Koenig, Theodore K., Sunil Baidar, Pedro Campuzano-Jost, Carlos A. Cuevas, Barbara Dix, Rafael P. Fernandez, Hongyu Guo, et al. "Quantitative detection of iodine in the stratosphere." Proceedings of the National Academy of Sciences 117, no. 4 (January 13, 2020): 1860–66. http://dx.doi.org/10.1073/pnas.1916828117.

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Oceanic emissions of iodine destroy ozone, modify oxidative capacity, and can form new particles in the troposphere. However, the impact of iodine in the stratosphere is highly uncertain due to the lack of previous quantitative measurements. Here, we report quantitative measurements of iodine monoxide radicals and particulate iodine (Iy,part) from aircraft in the stratosphere. These measurements support that 0.77 ± 0.10 parts per trillion by volume (pptv) total inorganic iodine (Iy) is injected to the stratosphere. These high Iy amounts are indicative of active iodine recycling on ice in the upper troposphere (UT), support the upper end of recent Iy estimates (0 to 0.8 pptv) by the World Meteorological Organization, and are incompatible with zero stratospheric iodine injection. Gas-phase iodine (Iy,gas) in the UT (0.67 ± 0.09 pptv) converts to Iy,part sharply near the tropopause. In the stratosphere, IO radicals remain detectable (0.06 ± 0.03 pptv), indicating persistent Iy,part recycling back to Iy,gas as a result of active multiphase chemistry. At the observed levels, iodine is responsible for 32% of the halogen-induced ozone loss (bromine 40%, chlorine 28%), due primarily to previously unconsidered heterogeneous chemistry. Anthropogenic (pollution) ozone has increased iodine emissions since preindustrial times (ca. factor of 3 since 1950) and could be partly responsible for the continued decrease of ozone in the lower stratosphere. Increasing iodine emissions have implications for ozone radiative forcing and possibly new particle formation near the tropopause.
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8

Kerr, R. A. "First Detection of Ozone Hole Recovery Claimed." Science 332, no. 6026 (April 7, 2011): 160. http://dx.doi.org/10.1126/science.332.6026.160.

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9

Maruo, Yasuko Y., Tatsuya Kunioka, Kunihiko Akaoka, and Jiro Nakamura. "Development and evaluation of ozone detection paper." Sensors and Actuators B: Chemical 135, no. 2 (January 2009): 575–80. http://dx.doi.org/10.1016/j.snb.2008.09.016.

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10

Yan, Xinwei. "Detection by ozone-induced chemiluminescence in chromatography." Journal of Chromatography A 842, no. 1-2 (May 1999): 267–308. http://dx.doi.org/10.1016/s0021-9673(99)00177-6.

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11

Gao, Ying, Xiaoyun Liu, Wenjing Qi, Wenyue Gao, Yunhui Li, and Guobao Xu. "Highly efficient quenching of tris(2,2′-bipyridyl)ruthenium(ii) electrochemiluminescence by ozone using formaldehyde, methylglyoxal, and glyoxalate as co-reactants and its application to ozone sensing." Analyst 140, no. 12 (2015): 3996–4000. http://dx.doi.org/10.1039/c5an00292c.

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12

Šaulienė, Šukienė, Daunys, Valiulis, Lankauskas, Kokina, Gerbreders, and Gavarāne. "Detection and Microscopy of Alnus glutinosa Pollen Fluorescence Peculiarities." Forests 10, no. 11 (October 28, 2019): 959. http://dx.doi.org/10.3390/f10110959.

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Alnus glutinosa is an important woody plant in Lithuanian forest ecosystems. Knowledge of fluorescence properties of black alder pollen is necessary for scientific and practical purposes. By the results of the study, we aimed to evaluate possibilities of identifying Alnus glutinosa pollen fluorescence properties by modeling ozone effect and applying two different fluorescence-based devices. To implement the experiments, black alder pollen was collected in a typical habitat during the annual flowering period in 2018–2019. There were three groups of experimental variants, which differed in the duration of exposure to ozone, conditions of pollen storage before the start of the experiment, and the exposure time. Data for pollen fluorescence analysis were collected using two methods. The microscopy method was used in order to evaluate the possibility of employing image analysis systems for investigation of pollen fluorescence. The second data collection method is related to an automatic device identifying pollen in real time, which uses the fluorescence method in the pollen recognition process. Data were assessed employing image analysis and principal component analysis (PCA) methods. Digital images of ozone-exposed pollen observed under the fluorescence microscope showed the change of the dominant green colour toward the blue spectrum. Meanwhile, the automatic detector detects more pollen whose fluorescence is at the blue light spectrum. It must be noted that assessing pollen fluorescence several months after exposure to ozone, no effect of ozone on fluorescence remains.
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13

Jonnalagadda, S., S. Chan, J. Garrido, J. Bond, and K. A. Singmaster. "Detection of Ethylene-Ozone and Cyclohexene-Ozone Charge-Transfer Complexes in Cryogenic Matrixes." Journal of the American Chemical Society 117, no. 1 (January 1995): 562–63. http://dx.doi.org/10.1021/ja00106a077.

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14

Noaman, Ali, and Amal A. El gamel. "Simulation of ozone concentrations inside 60CO industrial irradiator." Journal of Physics: Conference Series 2305, no. 1 (August 1, 2022): 012002. http://dx.doi.org/10.1088/1742-6596/2305/1/012002.

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Abstract The motivation of this work is to study the relationship between gamma radiation and also ozone concentration in 60CO industrial irradiators. Because ozone is considered to be one of the most important safety issues, because it has a destructive effect on the human body and has a corrosive effect on metal parts in the irradiated area. Moreover, due to its high reactivity. So first using ozone monogram method to measure ozone concentration, and also the effect of the factor on ozone concentration was determined. MATLAB computer code was used to calculate the ozone concentration-response with completely different statistics. Among them, ozone concentration in the 60CO irradiation area is in a completely different state. These conditions include: different gamma emitters, completely different irradiators, airflow correction, and engine failure. It is suggested that ozone formation may be a direct effect of gamma radiations. the result show also that the health hazards due to the ozone produced during irradiation are significant and should not be overlooked. It was observed that in case of 1Ci motor failure, the detection time is 67.5 minutes. While, for 0.1Ci motor failure, the detection time is 32.2 minutes. To fulfill the employee safety limits. it is recommended to have a second control system with ventilation
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15

Minschwaner, Kenneth, Anthony T. Giljum, Gloria L. Manney, Irina Petropavlovskikh, Bryan J. Johnson, and Allen F. Jordan. "Detection and classification of laminae in balloon-borne ozonesonde profiles: application to the long-term record from Boulder, Colorado." Atmospheric Chemistry and Physics 19, no. 3 (February 12, 2019): 1853–65. http://dx.doi.org/10.5194/acp-19-1853-2019.

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Abstract. We quantify ozone variability in the upper troposphere and lower stratosphere (UTLS) by investigating lamination features in balloon measurements of ozone mixing ratio and potential temperature. Laminae are defined as stratified variations in ozone that meet or exceed a 10 % threshold for deviations from a basic state vertical profile of ozone. The basic state profiles are derived for each sounding using smoothing methods applied within a vertical coordinate system relative to the World Meteorological Organization (WMO) tropopause. We present results of this analysis for the 25-year record of ozonesonde measurements from Boulder, Colorado. The mean number of ozone laminae identified per sounding is about 9±2 (1σ). The root-mean-square relative amplitude is 20 %, and laminae with much larger amplitudes (>40 %) are seen in ∼ 2 % of the profiles. The vertical scale of detected ozone laminae typically ranges between 0.5 and 1.2 km. The lamina occurrence frequency varies significantly with altitude and is largest within ∼2 km of the tropopause. Overall, ozone laminae identified in our analysis account for more than one-third of the total intra-seasonal variability in ozone. A correlation technique between ozone and potential temperature is used to classify the subset of ozone laminae that are associated with gravity wave (GW) phenomena, which accounts for 28 % of all laminar ozone features. The remaining 72 % of laminae arise from non-gravity wave (NGW) phenomena. There are differences in both the vertical distribution and seasonality of GW versus NGW ozone laminae that are linked to the contrast in main generating mechanisms for each laminae type.
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16

Li, Cuihua, Yangbin Li, Jingman Peng, and Ying Chen. "Analysis of Vertical Distribution of Ozone in Winter and Its Transport from Stratosphere to Troposphere in the Pearl River Delta Region of China." Journal of Sensors 2022 (August 25, 2022): 1–12. http://dx.doi.org/10.1155/2022/9771823.

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The vertical distribution of winter ozone in the Pearl River Delta in 2021 was analyzed using electrochemical concentration cell (ECC) ozonesonde and compared with the ozone Light detection and ranging (LiDAR) data. The transport of stratospheric ozone to the troposphere was also explored. The results show that (1) the maximum value of the stratospheric ozone layer was about 25 km. The stratospheric ozone profile is mainly unimodal, and the stratospheric ozone content was much higher than that of the troposphere. In the troposphere, the ozone content near the ground (0-2 km) was slightly higher than that between 5 and 15 km. The ozone profile in the upper and middle troposphere showed a peak structure, which was mainly divided into single peak (22%) and multipeak (77%) profiles. (2) In the middle and lower troposphere, the vertical profile of ozone detected by LiDAR is significantly different from that detected by sounding system. The difference between the two ranged from 10 ppb to 60 ppb at the same height. Ozone sounding can supplement the blind area of the near-ground layer by LiDAR ozone detection and can calibrate the inversion results of LiDAR. (3) On January 5, 2022, stratospheric ozone was transported to the troposphere. The stratospheric intrusion occurred due the high wind speed of the subtropical jet centre over Qingyuan and due to strong subsidence movement. When the stratospheric air mass moved to the troposphere, and subsidence airflow encountered, the ozone concentration near the ground was rapidly increased in a short time. It was identified as an “exceptional event.”
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17

Keeble, James, Hannah Brown, N. Luke Abraham, Neil R. P. Harris, and John A. Pyle. "On ozone trend detection: using coupled chemistry–climate simulations to investigate early signs of total column ozone recovery." Atmospheric Chemistry and Physics 18, no. 10 (June 1, 2018): 7625–37. http://dx.doi.org/10.5194/acp-18-7625-2018.

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Abstract. Total column ozone values from an ensemble of UM-UKCA model simulations are examined to investigate different definitions of progress on the road to ozone recovery. The impacts of modelled internal atmospheric variability are accounted for by applying a multiple linear regression model to modelled total column ozone values, and ozone trend analysis is performed on the resulting ozone residuals. Three definitions of recovery are investigated: (i) a slowed rate of decline and the date of minimum column ozone, (ii) the identification of significant positive trends and (iii) a return to historic values. A return to past thresholds is the last state to be achieved. Minimum column ozone values, averaged from 60° S to 60° N, occur between 1990 and 1995 for each ensemble member, driven in part by the solar minimum conditions during the 1990s. When natural cycles are accounted for, identification of the year of minimum ozone in the resulting ozone residuals is uncertain, with minimum values for each ensemble member occurring at different times between 1992 and 2000. As a result of this large variability, identification of the date of minimum ozone constitutes a poor measure of ozone recovery. Trends for the 2000–2017 period are positive at most latitudes and are statistically significant in the mid-latitudes in both hemispheres when natural cycles are accounted for. This significance results largely from the large sample size of the multi-member ensemble. Significant trends cannot be identified by 2017 at the highest latitudes, due to the large interannual variability in the data, nor in the tropics, due to the small trend magnitude, although it is projected that significant trends may be identified in these regions soon thereafter. While significant positive trends in total column ozone could be identified at all latitudes by ∼ 2030, column ozone values which are lower than the 1980 annual mean can occur in the mid-latitudes until ∼ 2050, and in the tropics and high latitudes deep into the second half of the 21st century.
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18

TIAN, YA-YA, SI MI, YA-XIN SANG, CHUN-YU KANG, and XIANG-HONG WANG. "Ozone Degradation of Prometryn in Ruditapes philippinarum: Response Surface Methodology Optimization and Toxicity Assessment." Journal of Food Protection 83, no. 9 (May 7, 2020): 1641–48. http://dx.doi.org/10.4315/jfp-20-076.

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ABSTRACT This study optimized the method for ozone (O3) degradation of prometryn in the clam Ruditapes philippinarum and evaluated toxicity changes during ozone degradation. The gas chromatography method for the detection of prometryn was appropriately improved. The linear range was 5 to 500 ng/mL, with a correlation coefficient of 0.9964. The addition concentration of prometryn was 0.025 to 0.100 mg/kg, the recovery was 77.97 to 85.00%, the relative standard deviation (n = 6) was 2.36 to 7.86%, and the limit of detection was 0.3 μg/kg. Using the central composite design in two experiments, ozone as gas and ozone dissolved in water, the effect of degradation rate was studied on three variables: ozone concentration, temperature, and exposure time. Ozone as gas and ozone dissolved in water have the same degradation effect on prometryn. The O3 concentration was 4.2 mg/L, the temperature was 40°C, the exposure time was 10 min, and the maximum degradation rate was 89.94 and 89.69% for the two experiments, respectively. In addition, the toxicity of ozone degradation products was evaluated using buffalo rat liver cells. After ozone treatment for 30 min, the toxicity of the ozone degradation products was reduced to 52.15% compared with that of prometryn itself. The toxicity of the ozone degradation products increased slightly when the ozonation time was prolonged; the toxicity at 180 min was greater than that of the parent compound prometryn. Overall, the application of ozone degradation of pesticide residues is a promising new technology. This study determined better degradation conditions for prometryn in R. philippinarum and also provided a theoretical basis for the widespread use of ozone technology in the future. HIGHLIGHTS
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19

Leblanc, Thierry, Robert J. Sica, Joanna A. E. van Gijsel, Sophie Godin-Beekmann, Alexander Haefele, Thomas Trickl, Guillaume Payen, and Gianluigi Liberti. "Proposed standardized definitions for vertical resolution and uncertainty in the NDACC lidar ozone and temperature algorithms – Part 2: Ozone DIAL uncertainty budget." Atmospheric Measurement Techniques 9, no. 8 (August 25, 2016): 4051–78. http://dx.doi.org/10.5194/amt-9-4051-2016.

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Abstract. A standardized approach for the definition, propagation, and reporting of uncertainty in the ozone differential absorption lidar data products contributing to the Network for the Detection for Atmospheric Composition Change (NDACC) database is proposed. One essential aspect of the proposed approach is the propagation in parallel of all independent uncertainty components through the data processing chain before they are combined together to form the ozone combined standard uncertainty. The independent uncertainty components contributing to the overall budget include random noise associated with signal detection, uncertainty due to saturation correction, background noise extraction, the absorption cross sections of O3, NO2, SO2, and O2, the molecular extinction cross sections, and the number densities of the air, NO2, and SO2. The expression of the individual uncertainty components and their step-by-step propagation through the ozone differential absorption lidar (DIAL) processing chain are thoroughly estimated. All sources of uncertainty except detection noise imply correlated terms in the vertical dimension, which requires knowledge of the covariance matrix when the lidar signal is vertically filtered. In addition, the covariance terms must be taken into account if the same detection hardware is shared by the lidar receiver channels at the absorbed and non-absorbed wavelengths. The ozone uncertainty budget is presented as much as possible in a generic form (i.e., as a function of instrument performance and wavelength) so that all NDACC ozone DIAL investigators across the network can estimate, for their own instrument and in a straightforward manner, the expected impact of each reviewed uncertainty component. In addition, two actual examples of full uncertainty budget are provided, using nighttime measurements from the tropospheric ozone DIAL located at the Jet Propulsion Laboratory (JPL) Table Mountain Facility, California, and nighttime measurements from the JPL stratospheric ozone DIAL located at Mauna Loa Observatory, Hawai'i.
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20

Li, An, Zhong Lin Chen, and Lei Yang. "Formation, Detection and Removal of NDMA in Water Treatment Process." Advanced Materials Research 113-116 (June 2010): 1402–6. http://dx.doi.org/10.4028/www.scientific.net/amr.113-116.1402.

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N-Nitrosodimethylamine(NDMA) is known as a carcinogenic and mutagenic compound ,and in recent years, it has been found to be a novel disinfection by-product of the chloramination process.The NDMA precursors are considered as dimethylamine(DMA) and tertiary amines with dimethylamine functional groups. There are four pathways to NDMA formation: nitrosation, unsymmetrical dimethylhydrazine(UDMH) oxidation, chlorinated UDMH oxidation and hydroxylamine pathway. Formation of NDMA is affected by the presence of free chlorine and bromide, and pH is also a sensitive fator.The detection and analytical methods of NDMA are usually spectrophotometry,thin-layer chromatography, GC, LC and GC/MS.To improve the detection precision, GC/MS/MS and GC/HRMS are applied in detecting the trace NDMA. The methods of NDMA removal are UV degradation, the resin and several types of zeolite adsorption, UV/ozone and UV/hydrogen peroxide advanced oxidation technologies. Ozone also can oxidate percursors,so it can control the NDMA yield indirectly.
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21

Wang, Chunyu, Robert Willi Becker, Otmar Kappeler, Volker Cimalla, Michael Matthes, and Jens Mundhenke. "Stratospheric Ozone Detection Using a Photon Stimulated Ozone Sensor Based on Indium Oxide Nanoparticles." Journal of Environmental Protection 02, no. 08 (2011): 1108–12. http://dx.doi.org/10.4236/jep.2011.28128.

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22

Cacace, F., and M. Speranza. "Protonated Ozone: Experimental Detection of O3H+ and Evaluation of the Proton Affinity of Ozone." Science 265, no. 5169 (July 8, 1994): 208–9. http://dx.doi.org/10.1126/science.265.5169.208.

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23

Bodeker, G. E., H. Shiona, and H. Eskes. "Indicators of Antarctic ozone depletion." Atmospheric Chemistry and Physics Discussions 5, no. 3 (June 8, 2005): 3811–45. http://dx.doi.org/10.5194/acpd-5-3811-2005.

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Abstract. An assimilated data base of total column ozone measurements from satellites has been used to generate a set of indicators describing attributes of the Antarctic ozone hole for the period 1979 to 2003, including (i) daily measures of the area over Antarctica where ozone levels are below 150DU, below 220DU, more than 30% below 1979 to 1981 norms, and more than 50% below 1979 to 1981 norms, (ii) the date of disappearance of 150DU ozone values, 220DU ozone values, values 30% below 1979 to 1981 norms, and values 50% below 1979 to 1981 norms, for each year, (iii) daily minimum total column ozone values over Antarctica, and (iv) daily values of the ozone mass deficit based on a O3<220DU threshold. The assimilated data base combines satellite-based ozone measurements from 4 Total Ozone Mapping Spectrometer (TOMS) instruments, 3 different retrievals from the Global Ozone Monitoring Experiment (GOME), and data from 4 Solar Backscatter Ultra-Violet (SBUV) instruments. Comparisons with the global ground-based Dobson spectrophotometer network are used to remove offsets and drifts between the different data sets to produce a global homogeneous data set that combines the advantages of good spatial coverage of satellite data with good long-term stability of ground-based measurements. One potential use of the derived indices is detection of the expected recovery of the Antarctic ozone hole. The suitability of the derived indicators to this task is discussed in the context of their variability and their susceptibility to saturation effects which makes them less responsive to decreasing stratospheric halogen loading. It is also shown that if the corrections required to match recent Earth Probe TOMS measurements to Dobson measurements are not applied, some of the indictors are affected so as to obscure detection of the recovery of the Antarctic ozone hole.
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Bodeker, G. E., H. Shiona, and H. Eskes. "Indicators of Antarctic ozone depletion." Atmospheric Chemistry and Physics 5, no. 10 (September 29, 2005): 2603–15. http://dx.doi.org/10.5194/acp-5-2603-2005.

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Abstract. An assimilated data base of total column ozone measurements from satellites has been used to generate a set of indicators describing attributes of the Antarctic ozone hole for the period 1979 to 2003, including (i) daily measures of the area over Antarctica where ozone levels are below 150 DU, below 220 DU, more than 30% below 1979 to 1981 norms, and more than 50% below 1979 to 1981 norms, (ii) the date of disappearance of 150 DU ozone values, 220 DU ozone values, values 30% below 1979 to 1981 norms, and values 50% below 1979 to 1981 norms, for each year, (iii) daily minimum total column ozone values over Antarctica, and (iv) daily values of the ozone mass deficit based on a O3<220 DU threshold. The assimilated data base combines satellite-based ozone measurements from 4 Total Ozone Mapping Spectrometer (TOMS) instruments, 3 different retrievals from the Global Ozone Monitoring Experiment (GOME), and data from 4 Solar Backscatter Ultra-Violet (SBUV) instruments. Comparisons with the global ground-based Dobson spectrophotometer network are used to remove offsets and drifts between the different data sets to produce a global homogeneous data set that combines the advantages of good spatial coverage of satellite data with good long-term stability of ground-based measurements. One potential use of the derived indices is detection of the expected recovery of the Antarctic ozone hole. The suitability of the derived indicators to this task is discussed in the context of their variability and their susceptibility to saturation effects which makes them less responsive to decreasing stratospheric halogen loading. It is also shown that if the corrections required to match recent Earth Probe TOMS measurements to Dobson measurements are not applied, some of the indictors are affected so as to obscure detection of the recovery of the Antarctic ozone hole.
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25

Hocking, W. K., T. Carey-Smith, D. W. Tarasick, P. S. Argall, K. Strong, Y. Rochon, I. Zawadzki, and P. A. Taylor. "Detection of stratospheric ozone intrusions by windprofiler radars." Nature 450, no. 7167 (November 2007): 281–84. http://dx.doi.org/10.1038/nature06312.

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26

Xue, Qingsheng, Bai Yang, Zhongtian Tian, Fupeng Wang, Xiaoning Luan, Bing Mu, and Shurong Wang. "Spaceborne limb hyperspectral imager for ozone profile detection." Optics Express 27, no. 22 (October 14, 2019): 31348. http://dx.doi.org/10.1364/oe.27.031348.

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27

Ando, M. "Optical ozone detection by use of polyaniline film." Solid State Ionics 152-153 (December 2002): 819–22. http://dx.doi.org/10.1016/s0167-2738(02)00338-7.

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28

Hosoya, Yuuki, Yoshiteru Itagaki, Hiromichi Aono, and Yoshihiko Sadaoka. "Ozone detection in air using SmFeO3 gas sensor." Sensors and Actuators B: Chemical 108, no. 1-2 (July 2005): 198–201. http://dx.doi.org/10.1016/j.snb.2004.10.059.

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29

Ollitrault, Julien, Nicolas Martin, Jean-Yves Rauch, Jean-Baptiste Sanchez, and Franck Berger. "Improvement of ozone detection with GLAD WO3 films." Materials Letters 155 (September 2015): 1–3. http://dx.doi.org/10.1016/j.matlet.2015.04.099.

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30

Smiy, S., M. Bejar, E. Dhahri, T. Fiorido, M. Bendahan, and K. Aguir. "Ozone detection based on nanostructured La0.8Pb0.1Ca0.1Fe0.8Co0.2O3 thin films." Journal of Alloys and Compounds 829 (July 2020): 154596. http://dx.doi.org/10.1016/j.jallcom.2020.154596.

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31

Nakagawa, Hidemoto, Shinji Okazaki, Shukuji Asakura, Hironori Shimizu, and Isao Iwamoto. "A Temperature-compensated Sensor System for Ozone Detection." IEEJ Transactions on Sensors and Micromachines 121, no. 4 (2001): 199–203. http://dx.doi.org/10.1541/ieejsmas.121.199.

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32

Taslakov, M., V. Simeonov, M. Froidevaux, and H. van den Bergh. "Open-path ozone detection by quantum-cascade laser." Applied Physics B 82, no. 3 (November 26, 2005): 501–6. http://dx.doi.org/10.1007/s00340-005-2010-3.

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33

McGowan, K. "Flow injection analysis chemiluminescence detection of residual ozone." Talanta 42, no. 8 (August 1995): 1045–50. http://dx.doi.org/10.1016/0039-9140(95)01508-9.

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34

Uchino, Osamu, Tetsu Sakai, Toshiharu Izumi, Tomohiro Nagai, Isamu Morino, Akihiro Yamazaki, Makoto Deushi, et al. "Lidar detection of high concentrations of ozone and aerosol transported from northeastern Asia over Saga, Japan." Atmospheric Chemistry and Physics 17, no. 3 (February 8, 2017): 1865–79. http://dx.doi.org/10.5194/acp-17-1865-2017.

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Abstract. To validate products of the Greenhouse gases Observing SATellite (GOSAT), we observed vertical profiles of aerosols, thin cirrus clouds, and tropospheric ozone with a mobile-lidar system that consisted of a two-wavelength (532 and 1064 nm) polarization lidar and a tropospheric ozone differential absorption lidar (DIAL). We used these lidars to make continuous measurements over Saga (33.24° N, 130.29° E) during 20–31 March 2015. High ozone and high aerosol concentrations were observed almost simultaneously in the altitude range 0.5–1.5 km from 03:00 to 20:00 Japan Standard Time (JST) on 22 March 2015. The maximum ozone volume mixing ratio was ∼ 110 ppbv. The maxima of the aerosol extinction coefficient and optical depth at 532 nm were 1.2 km−1 and 2.1, respectively. Backward trajectory analysis and the simulations by the Model of Aerosol Species IN the Global AtmospheRe (MASINGAR) mk-2 and the Meteorological Research Institute Chemistry-Climate Model, version 2 (MRI-CCM2), indicated that mineral dust particles from the Gobi Desert and an air mass with high ozone and aerosol (mainly sulfate) concentrations that originated from the North China Plain could have been transported over the measurement site within about 2 days. These high ozone and aerosol concentrations impacted surface air quality substantially in the afternoon of 22 March 2015. After some modifications of its physical and chemical parameters, MRI-CCM2 approximately reproduced the high ozone volume mixing ratio. MASINGAR mk-2 successfully predicted high aerosol concentrations, but the predicted peak aerosol optical thickness was about one-third of the observed value.
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35

Izawa, Kuniyuki. "SnO2-Based Gas Sensor for Detection of Refrigerant Gases." Proceedings 14, no. 1 (June 19, 2019): 32. http://dx.doi.org/10.3390/proceedings2019014032.

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36

Acuautla, Mónica, Sandrine Bernardini, and Marc Bendahan. "Ozone Sensor on Flexible Substrate by ZnO Nanoparticles." Key Engineering Materials 605 (April 2014): 163–66. http://dx.doi.org/10.4028/www.scientific.net/kem.605.163.

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In this work the ozone detection in flexible substrate has been investigated. The flexible test platform with an integrated heater was designed and then characterized by thermal simulations using finite elements and its electrical properties have been studied. ZnO nanoparticles were deposited by drop coating process on the flexible substrate with platinum interdigited electrodes for gas detection. The gas sensing properties were determined by ozone exposure at different concentrations and temperatures. The gas sensing measurements present good response at different gas concentrations, good repeatability and fast recovery.
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37

Castelló Beltrán, Carlos, Elliott A. Palmer, Benjamin R. Buckley, and Felipe Iza. "Virtues and limitations of Pittsburgh green for ozone detection." Chemical Communications 51, no. 9 (2015): 1579–82. http://dx.doi.org/10.1039/c4cc08244c.

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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.
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38

Girschikofsky, Maiko, Dimitrij Ryvlin, Siegfried Waldvogel, and Ralf Hellmann. "Optical Sensor for Real-Time Detection of Trichlorofluoromethane." Sensors 19, no. 3 (February 2, 2019): 632. http://dx.doi.org/10.3390/s19030632.

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Trichlorofluoromethane was once a promising and versatile applicable chlorofluorocarbon. Unaware of its ozone-depleting character, for a long time it was globally applied as propellant and refrigerant and thus led to significant thinning of the ozone layer and contributed to the formation of the so-called ozone hole. Although production and application of this substance were gradually reduced at an early stage, we still face the consequences of its former careless use. Today, trichlorofluoromethane is released during recycling processes of waste cooling devices, traded on the black market, and according to recent findings still illegally manufactured. Here, we present an optical sensor device for real-time in-situ detection and measurement of this environmentally harmful chlorofluorocarbon. The described sensor is based on a planar Bragg grating that is functionalized with cyclodextrin derivatives and operates on the principle of a chemical sensor. In our study, the sensor is sensitized using per-methyl-, per-ethyl-, and per-allyl-substituted α -, β -, and γ -cyclodextrins as affinity materials for airborne trichlorofluoromethane. These functional coatings have been proven to be highly efficient, as an up to 400-times stronger signal deflection could be achieved compared to an identical but uncoated sensor. The presented sensor device shows instantaneous response to trichlorofluoromethane exposure, and features a limit-of-detection of less than 25 ppm, depending on the applied affinity material.
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39

Hassan, Fadia Falah, Halima Zugher Hussein, and Sumaiya Naeema Hawar. "Detection and Detoxification of Aflatoxin B1 from Fish Feedstuff Using Microwave and Ozone Gas." Ibn AL- Haitham Journal For Pure and Applied Science 31, no. 1 (May 14, 2018): 28. http://dx.doi.org/10.30526/31.1.1847.

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The current study was designed to investigate the occurrence of aflatoxin B1 in thirty two samples of fish feedstuff were collected randomly from some Iraqi local markets using ELISA technique. Aflatoxin B1 was detected in thirty samples and the concentration of toxin ranged from 50 ppb to 1000 ppb. Microwave and ozone were used for detoxification of aflatoxin B1 from sample with highest concentration (1000 ppb), two degree of temperature and two times (50°C and 100°C for 5 minute and 10 minute to each degree) of microwave, also two doses and two times (2 g and 4 g for 5 minute and 10 minute to each dose) of ozone gas were used. Degradation of aflatoxin B1 by microwave has been found to cause a significant (P ≤ 0.05) decrease of aflatoxin B1, Moreover, the concentration of aflatoxin B1 was dependent on temperature degrees and exposure time, also sample subjected to ozone gas caused a significant (P ≤ 0.05) decrease in aflatoxin B1 contents and the concentration of aflatoxin B1 was dependent on doses and times of exposure. Results showed that ozone gas was more effective in aflatoxin B1 reduction when compared with microwave.
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40

Bandoro, Justin, Susan Solomon, Benjamin D. Santer, Douglas E. Kinnison, and Michael J. Mills. "Detectability of the impacts of ozone-depleting substances and greenhouse gases upon stratospheric ozone accounting for nonlinearities in historical forcings." Atmospheric Chemistry and Physics 18, no. 1 (January 5, 2018): 143–66. http://dx.doi.org/10.5194/acp-18-143-2018.

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Abstract. We perform a formal attribution study of upper- and lower-stratospheric ozone changes using observations together with simulations from the Whole Atmosphere Community Climate Model. Historical model simulations were used to estimate the zonal-mean response patterns (“fingerprints”) to combined forcing by ozone-depleting substances (ODSs) and well-mixed greenhouse gases (GHGs), as well as to the individual forcing by each factor. Trends in the similarity between the searched-for fingerprints and homogenized observations of stratospheric ozone were compared to trends in pattern similarity between the fingerprints and the internally and naturally generated variability inferred from long control runs. This yields estimated signal-to-noise (S∕N) ratios for each of the three fingerprints (ODS, GHG, and ODS + GHG). In both the upper stratosphere (defined in this paper as 1 to 10 hPa) and lower stratosphere (40 to 100 hPa), the spatial fingerprints of the ODS + GHG and ODS-only patterns were consistently detectable not only during the era of maximum ozone depletion but also throughout the observational record (1984–2016). We also develop a fingerprint attribution method to account for forcings whose time evolutions are markedly nonlinear over the observational record. When the nonlinearity of the time evolution of the ODS and ODS + GHG signals is accounted for, we find that the S∕N ratios obtained with the stratospheric ODS and ODS + GHG fingerprints are enhanced relative to standard linear trend analysis. Use of the nonlinear signal detection method also reduces the detection time – the estimate of the date at which ODS and GHG impacts on ozone can be formally identified. Furthermore, by explicitly considering nonlinear signal evolution, the complete observational record can be used in the S∕N analysis, without applying piecewise linear regression and introducing arbitrary break points. The GHG-driven fingerprint of ozone changes was not statistically identifiable in either the upper- or lower-stratospheric SWOOSH data, irrespective of the signal detection method used. In the WACCM simulations of future climate change, the GHG signal is statistically identifiable between 2020 and 2030. Our findings demonstrate the importance of continued stratospheric ozone monitoring to improve estimates of the contributions of ODS and GHG forcing to global changes in stratospheric ozone.
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41

Petruci, João Flávio da Silveira, Diandra Nunes Barreto, Mariana A. Dias, Erika P. Felix, and Arnaldo A. Cardoso. "Analytical methods applied for ozone gas detection: A review." TrAC Trends in Analytical Chemistry 149 (April 2022): 116552. http://dx.doi.org/10.1016/j.trac.2022.116552.

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42

Martin, Randall V., Daniel J. Jacob, Jennifer A. Logan, Jerry M. Ziemke, and Richard Washington. "Detection of a lightning influence on tropical tropospheric ozone." Geophysical Research Letters 27, no. 11 (June 1, 2000): 1639–42. http://dx.doi.org/10.1029/1999gl011181.

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43

Noll, K. S., T. L. Roush, D. P. Cruikshank, R. E. Johnson, and Y. J. Pendleton. "Detection of ozone on Saturn's satellites Rhea and Dione." Nature 388, no. 6637 (July 1997): 45–47. http://dx.doi.org/10.1038/40348.

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44

Wongwiriyapan, Winadda, Shin-ichi Honda, Hirofumi Konishi, Tomoaki Mizuta, Takashi Ikuno, Takafumi Ohmori, Tatsuya Ito, et al. "Ultrasensitive Ozone Detection Using Single-Walled Carbon Nanotube Networks." Japanese Journal of Applied Physics 45, no. 4B (April 25, 2006): 3669–71. http://dx.doi.org/10.1143/jjap.45.3669.

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45

Robinson, Tyler D., Kimberly Ennico, Victoria S. Meadows, William Sparks, D. Ben J. Bussey, Edward W. Schwieterman, and Jonathan Breiner. "DETECTION OF OCEAN GLINT AND OZONE ABSORPTION USINGLCROSSEARTH OBSERVATIONS." Astrophysical Journal 787, no. 2 (May 15, 2014): 171. http://dx.doi.org/10.1088/0004-637x/787/2/171.

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46

Gondal, M. A., and Z. H. Yamani. "Highly sensitive electronically modulated photoacoustic spectrometer for ozone detection." Applied Optics 46, no. 29 (October 1, 2007): 7083. http://dx.doi.org/10.1364/ao.46.007083.

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47

Keeratirawee, Kanchalar, and Peter C. Hauser. "Photoacoustic detection of ozone with a red laser diode." Talanta 223 (February 2021): 121890. http://dx.doi.org/10.1016/j.talanta.2020.121890.

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48

Herman, J. R., and C. J. McQuillan. "Atmospheric chlorine and stratospheric ozone nonlinearities and trend detection." Journal of Geophysical Research 90, no. D3 (1985): 5721. http://dx.doi.org/10.1029/jd090id03p05721.

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49

Mukosera, George T., Taiming Liu, Abu Shufian Ishtiaq Ahmed, Qian Li, Matilda H. C. Sheng, Trent E. Tipple, David J. Baylink, Gordon G. Power, and Arlin B. Blood. "Detection of dinitrosyl iron complexes by ozone-based chemiluminescence." Nitric Oxide 79 (September 2018): 57–67. http://dx.doi.org/10.1016/j.niox.2018.07.005.

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50

da Silva, M. G., H. Vargas, A. Miklós, and P. Hess. "Photoacoustic detection of ozone using a quantum cascade laser." Applied Physics B 78, no. 6 (April 2004): 677–80. http://dx.doi.org/10.1007/s00340-004-1513-7.

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