▁Area ▁and ▁the ▁pres ervation ▁of ▁its ▁e colog ical ▁balance . ▁ ▁The ▁Part ies ▁undert ake ▁to ▁apply : ▁ ▁Pre ca ution ary ▁principle , ▁that ▁is , ▁to ▁take ▁prevent ive ▁measures ▁when ▁there ▁is ▁reason ▁to ▁assume ▁that ▁subst ances ▁or ▁energy ▁introduced , ▁directly ▁or ▁indirect ly , ▁into ▁the ▁marine ▁environment ▁may ▁create ▁ha z ards ▁to ▁human ▁health , ▁harm ▁living ▁resources ▁and ▁marine ▁e cos ystem s , ▁damage ▁amen ities ▁or ▁inter f ere ▁with ▁other ▁legit imate ▁uses ▁of ▁the ▁sea ; ▁Best ▁Environment al ▁Pract ice ▁and ▁Best ▁Av ailable ▁Technology ▁( c riteria ▁set ▁out ▁in ▁Anne x ▁II ); ▁Pol l uter ▁pays ▁principle , ▁that ▁is , ▁make ▁the ▁party ▁responsible ▁for ▁producing ▁poll ution ▁responsible ▁for ▁pay ing ▁for ▁the ▁damage ▁done ▁to ▁the ▁environment . ▁ ▁The ▁aim ▁of ▁the ▁States - Part ies ▁to ▁the ▁Convention ▁is ▁to ▁prevent ▁and ▁eliminate ▁poll ution ▁of ▁the ▁marine ▁environment ▁of ▁the ▁Balt ic ▁Sea ▁Area ▁caused ▁by ▁harm ful ▁subst ances ▁from ▁all ▁sources , ▁including : ▁▁ ▁from ▁land - based ▁sources ▁( me asures ▁set ▁out ▁in ▁Anne x ▁III ); ▁ ▁from ▁ships ▁( me asures ▁out lined ▁in ▁Anne x ▁IV ); ▁ ▁from ▁inc iner ation ▁and ▁dump ing ▁( ex em ptions ▁from ▁dump ing ▁prov isions ▁set ▁out ▁in ▁Anne x ▁V ); ▁▁ ▁from ▁expl oration ▁and ▁explo itation ▁on ▁the ▁se ab ed ▁( me asures ▁related ▁to