INIDEX
Noae Topie ITecche's 8ign
Cestieate
Aknowledgonan t
Dntndekon to
Bomagiatin
Processes
Current status
6
Substeues that
QNovel biomogvihy
Oganie Substences
Conelusio
INTRODUCTION
T()
BIOM/AGNIFIC/ATION
Biormagnikeabon, also knouon s bioampl:keahon
biological iheahon,
aSuke. Reokion, is the ineHtose in concen-tralion
moni
, eg a peohuide, in the t'ssues of orqan
iems at succe»dti vey hghes levels in a food chain:
a teoult o:
Persistence whee the substance cannot be boken doon
by envisonmenlal proc esseo
Food chan eneeics -wheu the subctane coneentraon
incease» rmatsivey
Low or non-ewstent rate
Ous i
of fntenal
moves upp aa foed ehain.
etion of he gubsten
dagsocahon
mainy du to uoates-insolubility
Biological magniAeahon often efes to themetals
Loheseby &tbstancs proce
ohevaby such as peskiu'des or heavy
wosk feir oay ito lakes, ives and he ocean, and
hon move up
up heu bod chain in prgreasi vely gr catut
Concantratons as they au incovpoaled ito thuhe diet
of
aquak lbauh avch as
as zooplankton, hich in ton
ae eaten by Ach, ohich then may be eaben
by biöe Rthy lasge bitdo, onimala or hunns A
Tbe substanes become inceeasingy con contra
ted in tscuey or intesnal
intesnal o
oguns as hey move
ase eubttones
BioaccumulenH ase eubttons 4hal
up the ehain
oganitms
incaease in contortralon in Bving or thy
tho
fo od bocawro
take in contaminated nir oaten,
looly metatoid oY
or exese tod.
Qwbitanees ac s
xSine
substenu, in
Lipophie
ís eranitm, enz4 enoeted in Levels
of inancheun)
inBiodiluhon Thus,
laweda Gioconcontahon andssues
inctebe Cio
weenbioac
a Patty fakconecnakon
biomagni
Oontm, and accumulaion
ot
mas Mony centoaonbio he of Cunudon! AHhouh
in he
in
toSubstances envonment
ot fat teeues too,
chennicals is
which deqrade wine,pophie)
ae eakon
aquake alao e
o as bionagni enbon. Areales
than is
Concontrak'on and
etay each Deveat it occwy sometimes
hon a ,hus and dekoed PROCESSES
absorbed oatn-basednCannot and that proreA procs e bodies wih n
orqanism, envi'ment; immertut
toss
acumulabe Am. bioaccumulahon
Bcahon
instble uohen as bioconcentrahon witin
, bioaemulate
be QA that due of Used
a inWhen oe occusing
ot 8ilutd,bleen iÀ up a a a
intenchanqeaby
ator polluutant T+ to
sube dictne
theeaten mediun, in a ocuss
he he ophic
a od i bsorph +ance h'on
organtm oath aLsor Ceus O when
hainheood A nd ase he to level, icdton
must Chephoti k. gets al tphie uptake 'on in
so hich or
on, pot
trophic oithin n Frm nd
m. labe
aceunuate smalles cesctain with
ite from is
the or tPood food the bet
mny prey, inelding al of hiv ipophilie eubtan
for eample, though mereuy ic only preoent in spaal
amaenh in seacoates , it is abioybed by alae
tgenenally a madhy!meuap. Hothylmsey
J mes hasunPul
heey
abiovbed, but only veuy tlowly exeetod
y oYganis
Bioaccumulah'on and biocon centraHon reoult in
in he adipose t'ssue o successive tophie levels:
z0oplanht n,small nekton, laygen kah,et Anthng
Aohich eat heoe Brh alao consunes he highe eve
s proess
ot mesCey the Bsh howe acmulaled.
Rih and
e nplains tohy pordatory Ath tveh as swordhave
shast or birdo ike ospry and
CorcantraMons of mewy in her su han oud
be actouted or by diret enposusu alone. for enam
cont ainmescuy at appo Mimatey
ple, hensing
pauts pe miim Cppm) and shak cortains
mecy
at
9reater hon d ppm.
DDT is a peskeide kroon to biomagnity, ohich it
one ot he most signieant assa us deemed
hamul to he envi nent by he EPA and othe
oYganizaHons. bDT is ooe oP h teost csouble Chemical
|Known and aceumuatos
gsivay in adipese h'ssuy
and os Hhe fat is onsund by predato, the
mount o DT biomagniby A oell kn BLJn e Kompk of
the hauful ofe ck DT biomagnif oaon is hu
populakons o
odatoy birds such as bald and pugrine
falcons due o oT
14604 . DAT no banned suhtanee in
pants oe the
CURRENT STATUS
în a tevieo, a lasge number of studieo , Suedol
s concwded that althovgh biomaqi Aeakin is
nhabty nore imited in oceuene
ncuene thath
hah prev'oUt y
Dheu4hty hee is qo0d evidenu hat DOT, DE, DeBL,
oxaphene, and Ahe orgonie bms o mcny bioconcen
natuu Foy othey cDntninant,
o bionagniy in Ar thir Concen
hBon &hd bioacCumulao n accoUnt
tssues: More rently, Graeaho
ttors in nism
subbtances Temsininq in the organt and
a Similay non-threatening Concntraons. The
Aluted toto non-thr,kdvey (bald egles
not bing diluted
in Noth Amesita Glouig
kons)
Pegrine fa eyeultuis testneot to th impotaa
bbT Use
DDT in to
and eapond
natually
meehanis hich to
chernitad prebsw
MeKehon
theeeoedhaweAnd
vavahycadmmy
Lead, to aise MOahon Nevel tab
IBIOM/AGNIFY
13STANCES rd THAT
prevent chlorinatedcommonTao
inorgarnic
Metals rgnie
o eohen From egrded oth
m
adveye
elam peuishenmeehanisms, ce
uokth toeus
damageorspnisms entk not e herm. swbstancan
husnot componds
hytocabons,
becase
organ
degadabu
bocawsenot pophil'e
they Organt, evswd roup:
heaUh Poss
SPorteulay ty organie These ay
eamot ae
heu
has ke ke that
e tnt epos and subttances and
eeh pantlany podutan" detoikea'onepeiheand
oraunochlomnes methyl alao
metas.
eveet
evcee Problens n ae
heswy od
aceoss &eleen expou
beonprevious
no Asck asidymeschyknawnknOLJn
fo aue
melals?
speu's pidly or as to
thleconsequenthy
h POP. degraded
ovganohlon or
Coreentroko e biomagruFy
ee hea
cuehayenough not ohlorin
y
OVEL
(ORGANIC
SUIBST/ANCES
chonicals
ply may ttir
,indudg
inpoch
ingnkor as
poxtatsesd4
heelt,
osoku Subttns
he tueh biom
corsubttone procee,tgy
dsordw. te
uie
hufnon
envionrnort, uman
oyrhoke ente t
to he org
ceses oding novel
ovyoritma, tse enu
Thenefore gubstaneeA .Thigis
and heatnovel
otton be vosious
seme and
. inseea, of
theoqifabon heagh
subotanes, Io humontloves othU o natniloaon
oYAnk ommaboni tequlaion
into acumubaj ean henfw ecolical
eleyatdor tinabitihy
of
osglerm
d biorn kimguilg concantradiu incuding
ildvcs bio
gonie in Vaious nove tran bah
poble and
olo biorma and be to study wih
thse or an lewels, l
Novelpeskeides
Aeornt hawe daon pevyislent
hein fr eMposunudevelernert M4ociated
to Nhen nkaionr Qustaee The
eiqri an nd odenkal Jvoph'e
Loheescn
londsua chain,
ab
