Several units of measurement are commonly applied to ozone: ppm - parts per million, usually parts per million volume (ppmV), detailing the number of molecules of ozone per million molecules of "air". Dobson Units (DU) - The number of ozone atoms in a column of atmosphere with a width and depth of a centimeter2 or meter2, and the entire height of the atmosphere from Earth's surface to the Sun (or the satellite measuring it). %wt or %vol - for a given amount of gas, how much of its mass (%wt) or volume (%vol) is just ozone. (Common for ozone generators.) mass/unit volume, pascals (partial pressure), and I won't atempt to chew up these definitions...
Scientists measure the amount of ozone gas in a column of air. To measure this, they use Dobson units (DU). Dobson was one of the first scientists to research ozone.
One Dobson unit indicates 0.01 millimeter thickness of ozone gas in a column.
The ozone layer is 1 to 3 millimeters thick, if compressed. However, the ozone itself is very diffuse, meaning it is spread out over a range of anywhere between 10 and 50 km.
It's between 20 and 30 kilometeres thick. In some places CFCs have damaged it.
dobson is the unit for measuring thickness of ozone layer
The ozone layer is a shield that extends in the stratosphere. The extension is from 20-40 km. So the thicknes can be thought as 20km.
The ozone's depth is around 20km. The ozone extends from 20 to 40 km above the sea level. That makes it 20 km thick.
KELVIN
20 km
Ozone layer contains ozone in it. Therefore, it is named so.
Earth has a layer of ozone. It is present as the ozone layer.
Ozone is a layer which protects us. Actually ozone is just a gas, ozone layer is the layer.
the ozone layer is the the part of the atmosphere that screens out harmful radiation from the sun.
Earth and Venus have a protective ozone layer. These planets have ozone molecules in ozone layer.
Ozone layer contains ozone in it. Therefore, it is named so.
The ozone layer in Tagalog is called "tunog ozone."
Ozone layer is formed of ozone. It is a gas.
Earth has a layer of ozone. It is present as the ozone layer.
damage to ozone layer is called ozone depletion. It is thinning of ozone layer.
Ozone is a layer which protects us. Actually ozone is just a gas, ozone layer is the layer.
The layer of gases that surround the atmosphere is ozone. It is present as the ozone layer.
Ozone layer is the layer of ozone. Humans are altering it by CFC's.
The ozone layer is in the stratosphere. It is a pool of ozone molecules.
Earth and Venus have a protective ozone layer. These planets have ozone molecules in ozone layer.
the ozone layer is the the part of the atmosphere that screens out harmful radiation from the sun.
The ozone layer blocks ultraviolet radiation.