214 



dr0|»plag». Ppllataiita in die dnypingg may enter ihe land «y^twn Arnn gfi jwepi jr anH 

 decQoqxMitloQ, sod, then as qnake by plants. Feedii^acd:vitiBS(rf'odier animals move 

 poTlntants in feces into olbacaxapoatais of the land-based system. AnoAer route Cor the 



mcn^. to twrrr^Trial aytti-aw i< inrimnl^ KmaTl Mi^ largf, that fipwl ifi\ intKr -tiHiil p litnt* i^^y T 



small organisnis. TTieae aninals move polhitBfifs&om the inter-tidal to Ae local landrbascd 

 system. 



No.3 AtmosphedcpoQutants. Atmosidieric bom ptdliitaiits Call om over wide areas 

 tfaxon^ movemeu of air masses, bat also may be ctmceatiated to fonn "hot-9ots' doe to 

 local piecqntation - as ooconed following tiie Cheaiobyl disaatet. 



No. 4 Land-based tFamportsysians. Once in d»e tenestrial ^rom, ttie effect of 

 poIlQt8atsdq)aids on the wayplantstake-iv, seqoestBT (store) aodtnm-over die chemical 

 ^*'"*p'^"*T'*'. ««/^ -*t»^ *ir*i^*' ^at <ti^ gT» ftywi n»«miiiii>«-fir»-aminaip UcfaeDS and maoy 

 mn^brooms prefiereodaUy takeri^ and stme some poIliitaiitB (e.g. xadioaciiye cesimn) - thns 

 tlieyiemaittasoutceafconiaaiinadoafQrloagpenodsoftimei. OdiervegBtatioomaytiim 

 over poOmants (jsickly and therefore are a soisce of pdDndon only bdefly - tat eaon^le 

 coo^Bre nmshrooms and beodes as IcHig-tenn and dunt-tEon direct soiiices of dietary 

 contamination tot n unh e ui peoples. 



In smmnary. biological processes Inflnence PATHWAYS by: .. 



ACXXLERATING movBomts beiweeo system ftjmpoiicnts 



OON<jiiN 1 kATINO poDBtHnts snccescvely in tropbie leiveis 



DISlRIBXniNG poSntanti locally and wodd-wide Iqr vfctae of animal tnoveroents 

 and xnigtatiaos (e.g. Uxds, fish, niarine mammals) as wdl as by direct i^^ysical transpoo. 

 INCREASED RADK)ACnVmr IN THE ARCnC 



Ibe Arctic biota is icztpaEtant to local iflhabitaiits fbrcfietaiy sasieiianoe,attla8a 



SOmOe of cadi income and dodnn^ -^K fi| <>!fio>i ^ynntiTig mnA tJAtn^ i« ■» Hm> -very ctati nf 



die sodal r^stems of Natbe Aladons. Thns, in maiv areas people maybe shnost 

 coiiqiletely dq)eDdeDt oo fish, bMs, aiid inaiiae and torestdal noiimials fior meat Slid plant 



