The thickness of ozone in a column of air in the atmosphere is measured in terms of :
Dobson units
Decibels
Decameter
Kilobase
The correct option is Option 1) Dobson units. The thickness of ozone in a column of air in the atmosphere is commonly measured in Dobson units (DU). Dobson units are a unit of measurement used to quantify the concentration of ozone in the Earth's atmosphere. They are named after G.M.B. Dobson, a pioneer in atmospheric ozone research.