A new type of ozone generator using a micro hollow cathode discharge has been developed. The electrode system consists of two thin metal cathodes and a ceramic spacer with center holes of a few100 mm diameter. The ozone generation efficiency increases up to 45 g/kWh at the ozone concentration of 7.6 g/Nm without any cooling systems by feeding highpressure oxygen. In this ozone generating system...

This study compares the fading of inkjet prints tested in environmental chambers using either an electrostatic discharge or ultraviolet radiation to produce ozone. Our results indicate that over the range of 0.1 to 5.0 ppm ozone in air, very similar fading characteristics are obtained at 50% RH with the microporous and swellable polymer based inkjet papers tested, whether ozone is produced with...

This paper analyzes ozone monitoring data obtained from 50 European stations operated by the Co-operative Programme for Monitoring and Evaluation of the Long Range Transmission of Air Pollutants in Europe (EMEP) and two stations maintained by the Austrian Environmental Agency. Data used in the analyses covered the summer period of the year 1990. The analysis explores first time series of ozone ...

Background: Nowadays, the COVID-19 pandemic has become a global problem that new methods must be used to prevent it. The virus is highly contagious and is mainly transmitted through the air. Ozone is a powerful oxidant that can be used to inactivate a wide range of viruses that may be resistant to other disinfectants. The purpose of this study was to review the use and effect of ozone in inacti...

The unicellular algae Chlorella sorokiniana was used as a model system to investigate the interaction of ozone with plant cell membranes. Ozone induces K(+) leakage from Chlorella sorokiniana similar to the electrolytic loss observed from many higher plants under stressful conditions. The kinetics of this leakage indicate that ozone initially interacts reversibly (within sec) with sites on memb...

BACKGROUND Short-term exposure to ozone has been associated with increased daily mortality. The shape of the concentration-response relationship-and, in particular, if there is a threshold-is critical for estimating public health impacts. OBJECTIVE We investigated the concentration-response relationship between daily ozone and mortality in five urban and five rural areas in the United Kingdom...

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It is known that hydrogen peroxide interferes with chemical oxygen demand analysis by consuming oxidation agents such as potassium dichromate, thus leading to overestimation of the chemical oxygen demand measurements. The objective of the study was to investigate the effects of hydrogen peroxide interference and to determine true chemical oxygen demand values on interpreting treatment performan...