Ozone layer thickness is measured in____________?

A. Metre
B. Joule
C. Pounds
D. Dobson

A dobson unit is the most basic measure used in ozone research.One Dobson Unit (DU) is defined to be 0.01 mm thickness at STP (standard temperature and pressure). Ozone layer thickness is expressed in terms of Dobson units, which measure what its physical thickness would be if compressed in the Earth’s atmosphere.