ozone layer

US /ˈoʊ.zoʊn ˌleɪ.ər/
UK /ˈoʊ.zoʊn ˌleɪ.ər/
"ozone layer" picture
1.

オゾン層

a layer in the earth's stratosphere at an altitude of about 10 km (6 miles) containing a high concentration of ozone, which absorbs most of the ultraviolet radiation reaching the earth from the sun.

:
The depletion of the ozone layer is a major environmental concern.
オゾン層の破壊は主要な環境問題です。
Scientists are monitoring the recovery of the ozone layer.
科学者たちはオゾン層の回復を監視しています。