Sentences with phrase «bromine concentrations»

The areas with higher bromine concentrations had up to 180 percent higher photoluminescence than areas depleted of bromine ions.

To see if these regulations affected bromine concentrations, atmospheric chemist Stephen Montzka of the National Oceanic and Atmospheric Administration in Boulder, Colorado, and colleagues analyzed air samples taken several times each month from 10 land - based sites across the globe between 1995 and 2002.

Not exact matches

«We detected the frequent presence of hazardous elements, such as bromine, cadmium, mercury and lead, in very high concentrations in some cases,» says Dr. Andrew Turner, co-author of the study, based at the University of Plymouth, UK.

The probe also detected concentrations of chlorine and bromine in the rocks that are consistent with rocks formed by evaporation on Earth and discovered striking «blueberries,» concretions of hematite, a water - related mineral.

But the team also measured ubiquitous daytime concentrations of iodine and bromine oxides in the layer of the troposphere where most ozone loss occurs.