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 ...

When chlorine and bromine atoms come into contact with ozone, they destroy the molecules. One chlorine atom can destroy over 100,000 ozone molecules before it is removed from the stratosphere.

But chlorine and bromine-containing chemicals released by human activity have unbalanced the process, resulting in a loss of ozone that is at its greatest in September/October. The Montreal ...

Halocarbons containing bromine usually have much higher ozone-depleting potential (ODP) than those containing chlorine. The man-made chemicals that have provided most of the chlorine and bromine ...

For the first time, scientists can distinguish the proportion of bromoform molecules that directly break bonds (dissociate) ...

Scientists use data from the Microwave Limb Sounder, MLS, aboard the Aura satellite, which has been making measurements around the globe since mid-2004. Scientists have shown through direct ...

Repairing the ozone layer demonstrates what is possible ... of both total tropospheric chlorine and total tropospheric bromine from long-lived ODSs have continued to decline since the 2018 Assessment.

The natural compound breaks down ozone in Earth's atmosphere ... in dissociation, one bromine atom breaks away from the rest of the molecule; in isomerization, the atoms rearrange into a different ...