For any who ask this question, please find Lucy's ReVeAL presentation answering this question and more.

As part of the ReVeAL project, Lucy gave a talk on UVARs in an Israeli online air pollution conference. UVARs are relatively new in Jerusalem, so explaining why was important.

After several requests for copies of the presentation, it is now adapted slightly and now available here.

More information on the ReVeAL project from the ReVeAL website.