Ozone absorbs radiation strongly in the ultraviolet region of the atmospheric spectrum between 220-290 nm. ...
Pure ozone is a blue gas, with a strong irritating smell and It is about 1.5 times heavier than air and has a vapor density of 24, corresponding to the formula O3.
In normal conditions oxygen is a colourless, odourless and insipid gas; it condensates in a light blue liquid. Oxygen is part of a small group of gasses literally paramagnetic, and it’s the most paramagnetic of all. Liquid oxygen is also slightly paramagnetic.
