all actions, including site visits, monitoring of emissions and checks of internal reports and follow-up documents, verification of self-monitoring, checking of the techniques used and adequacy of the environment management of the installation, undertaken by or on behalf of the competent authority to check and promote compliance of installations with their permit conditions and, where necessary, to monitor their environmental impact, environmental control - means of protecting an environment, Keskkonnainspektsiooni ja kohaliku omavalitsuse üksuse organi või asutuse tegevus eesmärgiga ennetada, selgitada välja ja tõrjuda oht ning kõrvaldada korrarikkumine keskkonnakaitse valdkonnas, an engineering system which will maintain the immediate environment of an organism within defined limits of temperature, pressure, and gaseous composition suitable for the continuance of comfort and efficiency