I was have been wondering if Volcano eruptions help deplete the ozone after seeing that we Have a mini ozone hole over the Pacific north West, does not look mini to me...They say it will move east towards Yellowstone...
"Our forecast shows that this mini ozone hole will probably persist for a few more days and maybe shift a little towards the East or into the U.S. but it will eventually dissipate," says Mark Parrington, senior scientist for CAMS.
Mini ozone hole appears over western Canada
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Volcanic gases could deplete ozone layer
Volcanic sulfate aerosols alone can lead to an ozone increase -- if chlorine levels are at low, pre-industrial levels, Krüger said. But bromine and chlorine are halogens, gases whose atoms have seven electrons in the outer ring. To reach a stable, eight-electron configuration, these atoms will rip electrons off of passing molecules, like ozone. So when an eruption also pumps bromine and chlorine levels into the stratosphere, the ozone-depleting properties of the gases together with aerosols is expected to thin the protective layer.
"As we have bromine and chlorine together, we believe that this can lead to substantial depletion," she said. "And this is from one single eruption."
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How do volcanoes affect stratospheric ozone?
Human activities like pollution and emissions already send lots of halogen gases into the stratosphere — but, scientists have noted that halogens from volcanoes contain twice and thrice as much halogens that human activities even produce. This means the potential of depleting the ozone layer is higher with volcanic 'smoke'
Remember that the stratosphere is high up and that means when volcanic ash gets there, the impact can be over a very large area, even to the size of the entire North American region.
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Many Volcanoes starting to have swarms and many others are erupting.....
Earthquake swarm under Cumbre Vieja volcano, Canary Islands
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Intense earthquake swarm at Tjörnes Fracture Zone, Iceland
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Yellowstone Earthquake Swarm, 'Ring of Fire' Quake-Cluster Prompts Warning
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The Weekly Volcanic Activity Report: February 7 - 13, 2018
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