Ozone gas (O₃) endurance in the atmosphere If I release some ozone gas (O3) to the atmosphere, for how much time will it stay there in its original form? Does it change to some other form by reacting with other atmospheric constituents?
$\mathrm{O}_3$ decomposes to $\mathrm{O}_2$.

The rate of decomposition increases with temperature. 

At 20 degrees C, the half-life is about 3 days in air.  

$\mathrm{NO}$ can catalyze the formation and decomposition of ozone.