Sentence examples for concentration of ozone from inspiring English sources
The humidification of seeds before ozonation, the concentration of ozone in the inlet gas and the ozonation time were revealed to be the predominant factors to accelerate the kinetics of degradation of pesticides in the seed loadings.
"The ambient air moving through the radiator contains a concentration of ozone, and our chemical catalyst converts up to 80percentt of it to oxygen".
Under the smog standard now in force, if the concentration of ozone molecules rises above an average of 120 per billion for an hour, the environmental agency records a violation.
The ozone "hole" is not literally a hole; rather, the phenomenon is defined as the area where the concentration of ozone drops below the historical threshold of 220 Dobson Units.
Cracks one millimetre long appear in unprotected rubber after only a few weeks of exposure to a typical outdoor concentration of ozone, about 5 parts per 100 million.
The average concentration of ozone, one of the most common pollutants, is about half its level in the early 1990s, when the air was at its dirtiest (see chart).
This relatively long-term change over the course of the past few decades is attributed to an increasing atmospheric concentration of ozone-depleting and greenhouse gases.
In general, Dr. Gregg writes, rural areas in New York, New Jersey and Connecticut have higher concentrations of ozone near the ground than cities do.
The standard, stated in terms of average concentrations of ozone at ground level over an eight-hour period, is now 84 parts per billion.
