(englisch) The 1999 Protocol to Abate Acidification, Eutrophication and Ground-level Ozone; 31 Signatories and 8 ratifications. Not yet in force.The 1998 Protocol on Persistent Organic Pollutants (POPs); 36 Signatories and 19 Ratifications. Will enter into force on 23 October 2003.The 1998 Protocol on Heavy Metals; 36 Signatories and 21 rati...