Rapport om vurdering af stoffer i forhold til farlighed ... - Naturstyrelsen
Rapport om vurdering af stoffer i forhold til farlighed ... - Naturstyrelsen
Rapport om vurdering af stoffer i forhold til farlighed ... - Naturstyrelsen
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
1<br />
Indhold<br />
Baggrund..................................................................................................... 7<br />
Grundvandsdirektivet og vandrammedirektivet .......................................... 7<br />
Formål ...................................................................................................... 8<br />
Projektrammen .......................................................................................... 10<br />
Jordens opbygning og sammensætning ................................................... 12<br />
Organisk stof ......................................................................................... 13<br />
Lerede <strong>af</strong>lejringer .................................................................................. 14<br />
Sandede <strong>af</strong>lejringer ............................................................................... 14<br />
Indhold <strong>af</strong> kalk ....................................................................................... 14<br />
Det Geohydrologiske kredsløb ................................................................. 15<br />
Nedbør ............................................................................................ 15<br />
Tab ved fordampning fra jordoverfladen og optag i plantevækst .......... 16<br />
Nettonedbøren ...................................................................................... 16<br />
Nedbørens sammensætning og opkoncentrering ................................. 16<br />
Processer i jordmiljøet .............................................................................. 17<br />
Nedtrængning og forbrug <strong>af</strong> ilt (oxygen) ............................................... 17<br />
Ændringer i redox<strong>forhold</strong> ....................................................................... 17<br />
Opløsning og udfældning ...................................................................... 19<br />
Transport <strong>af</strong> uorganisk materiale .......................................................... 19<br />
Transport <strong>af</strong> organisk materiale ............................................................ 21<br />
Mobilitet <strong>af</strong> kemiske <strong>stoffer</strong> i jord .............................................................. 21<br />
Generelle overvejelser <strong>om</strong> mobilitet ......................................................... 26<br />
Vandopløselighed ..................................................................................... 27<br />
Adsorption – Kd ......................................................................................... 28<br />
Nedbrydning <strong>af</strong> kemiske <strong>stoffer</strong> i jord ....................................................... 30<br />
Potentiel transport med organisk stof og kolloider .................................... 33<br />
Samlet <strong>vurdering</strong> <strong>af</strong> risiko for organiske <strong>stoffer</strong> ........................................ 33<br />
Indledning og <strong>af</strong>grænsning ....................................................................... 37<br />
Generelle overvejelser <strong>om</strong> mobilitet ......................................................... 37<br />
Udfældninger ......................................................................................... 38<br />
Opløselighed ......................................................................................... 38<br />
Adsorption ............................................................................................ 39<br />
Partikeltransport .................................................................................... 40<br />
Transport med organisk stof ................................................................. 40<br />
Samlet <strong>vurdering</strong> <strong>af</strong> metallers mobilitet ..................................................... 41