Methods: This study evaluates the bactericidal efficacy of low concentrations of gaseous ozone (5 ppm) against clinically ...

Figure 1: Influence of greenhouse-gas emissions on stratospheric ozone concentration in northern mid-latitudes. In the 1970s, before chlorine and bromine became the focus of the ozone debate ...

Scientists recorded a total-column ozone concentration of 102 Dobson units, the 8th-lowest level since 1986.

with a minimum ozone concentration of 194 Dobson Units (DU). In 1987, the area of the hole reached 22.4 million square kilometers and ozone concentrations dropped to 109 DU. By 2006, the worst year ...

The ozone concentration data were obtained through the Stratospheric Aerosol and Gas Experiment II (SAGE II) satellite, covering the period 1984–2005 and the temperature data are from the ...

The potency of the virus declined by more than 90 percent when subjected to low level ozone for 10 hours. "Transmission of the novel coronavirus may be reduced by continuous, low-concentration ...

HFC-125 is a greenhouse gas becoming a major contributor to global warming, and in the first study to use satellites to ...

HFC-125 is a greenhouse gas becoming a major contributor to global warming, and in the first study to use satellites to measure its concentration in the atmosphere, researchers found it has increased ...

Despite many programs that achieved statewide reductions of 15% over the past 20 years, the Lake Michigan shoreline area ...

China's first overseas atmospheric background station began operation in Antarctica on Sunday, bolstering global response to climate change.