troposphere - the lower layers of atmosphere, in which the change of temperature with height is relatively large. It is the region where clouds form, convection is active, and mixing is continuous and more or less complete.
... välimõõtmised, mis puudutavad: tähtsamate, nii looduslike kui ka inimtekkeliste, lähtegaaside kontsentratsiooni ja vooge; atmosfääri dünaamika uurimist; atmosfääri piirikihti ulatuvate fotokeemilise päritoluga aineosakeste sünkroonset mõõtmist in situ ja kaugustundlike mõõteriistade abil; erinevate sensorite omavahelist võrdlemist, kaasa arvatud koordineeritud korrelatiivsed mõõtmised satelliitaparatuuri tarbeks ...
Whereas, because of their characteristics, the use of organic solvents in certain activities and installations gives rise to emissions of organic compounds into the air which can be harmful for public health and/or contributes to the local and transboundary formation of photochemical oxidants in the boundary layer of the troposphere which cause damage to natural resources of vital environmental and economic importance and, under certain exposure conditions, has harmful effects on human health.
