"4looduskeskkond" - 1 õppematerjal

KESKKONNAOHTLIK AINE - ELAVHÕBE

..................................................................................................................6 3KASUTAMINE............................................................................................................6 3.1Kasutusvaldkonnad................................................................................................6 3.2Ühendid..................................................................................................................7 4LOODUSKESKKOND................................................................................................8 4.1Esinemine looduses................................................................................................8 4.2Loodusesse sattumine............................................................................................8 4.3Keskkonda sattumine ja lekked.............................................................................9 4.4Lekete likvideerimine...............