Gasoline is now $1.899 the gallon, “everywhere,” (within a 15-20 mile range.)
The low price was down to 0.979 the gallon, but that only lasted for a few days at a few stations.
(on the upside, Michigan residents are now ‘allowed’ to ‘travel.’)

I regularly drive by a regional “tank farm,” where gasoline comes via pipeline from the Whiting Indiana B.P. refinery outside of Chicago. It appears they have been working overtime recently but hard to tell. (they run 24/7/365 normally)

My dentist opened up this week to work on the backlog of his patients’s non-emergency problems over the first two sessions of The Great Oppression (three weeks, then the balance of April, now we are in session three, through May). There is a light at the end of the tunnel (but why do I hear a whistle?). Today he assessed my tooth that lost a crown, six weeks ago, and decided that it is doing well enough that we can wait to replace it early next month, combining the appointment with my scheduled routine teeth cleaning. Routine procedures should be allowed in June, with the end of California’s never-ending Great Oppression lockdown shutdown smackdown.

The Arctic ozone hole didn’t affect me at all. Wait. Should my skin be this red after walking from my car to the dentist office?

While this reaction is happening, ozone is also being formed by a different interaction with (ironically) ultraviolet light from the sun. The ozone “hole” is a temporary phenomenon, lasting about a month starting shortly after the spring equinox. Once the precursor chemicals are exhausted, then the normal course of events occur, in which interaction between oxygen molecules and ultraviolet light form ozone, while simultaneously interactions between ozone molecules and (ironically) ultraviolet light destroys ozone until an equilibrium is reached. When the sun goes down again, these two reactions stop, leaving ozone in the atmosphere overnight. A long cold night, during which the precursor chemicals again form. The amount of ozone — the “hole” — is a concentration that dips below 50% of the normal equilibrium.

The reason that there has not been an ozone “hole” in the Arctic, before, is that the temperatures have not fallen low enough for much of the precursor chemical (a nitrogen-chlorine molecule) to form, so when the sun rises in the Arctic, there is not enough precursor chemicals to make much difference in the ozone layer.

The protection from ultraviolet light that the ozone layer provides is due to the absorption of the ultraviolet during the ozone creation and the ozone destruction processes.

The precursor chemicals are only some of the chemicals measured by the CLAES instrument on the UARS satellite:
https://uars.gsfc.nasa.gov/uars-science/claes.html

CLAES created plots of the Antarctic ozone “hole” during the early 1990s.
https://en.wikipedia.org/wiki/Upper_Atmosphere_Research_Satellite#Cryogenic_Limb_Array_Etalon_Spectrometer_(CLAES)

While I was working on another instrument for the UARS satellite, the CLAES instrument was being built by my department’s sister department, next door.

I hate to be a nitpicker, but oxygen molecules are split into two Radicals with not charge. They are not ionized. A radical combines with another oxygen molecule to form O3 (ozone)

However, you are absolutely right on the seasonal variation of ozone concentrations in the upper atmosphere. ABSOLUTELY

O2 + hv > 2O.
O. + O2 > O3

The Ozone Thinning, due to lack of sunlight that makes it, measures at 3 ppm. Soon, as the polar area receive 24 hours sunlight, it will reach a maximum of 10 ppm as ozone begins reacting with the ozone depleting chemical “ozone” making O2.

Saying “ozone shield the planet from ultraviolet radiation”it’s like saying wear sunscreen to protect yourself a house fire.
Our atmosphere protects us from UV and the ozone layer is proof or consequence of this protection. Being a larger molecule it would only protect us One part out of 100,000 parts of sunlight and from UV-A which is not harmful.

It’s funny that they would list the third largest ingredient of the ocean “chlorine” as man-made.