ÿWPCX ¶¡þ£]«vîbtOm¨Ó’~o3Î]éúã;ˆ†×»>äv€\™±çž‘µŠþü¦~ñÖ\›Ãjœl%çY©L ‡5cßå©/eAšá~T¸¦‡ñ7‚'5áÌÄ1y$|ÇmgB dV©†xϨ¾W«½ÛµkŽËïeôG̃†3Úe BaÓu7]žõ$dŸ¶¤×¯Úcû&—A_üXyrü…/<‡Q²c4(¡ó ÖêYéÞƒ–ñ…‡ùÜDýß(_ùt7ÿœ¶-Dœv´Ïœ¹Rç^ÿnƒr@à«Å;µA²U”°LÜû#w6sMt=V”4]Z¯ vL@¾£Ì;åͻҪ=¾0.5€is€considered€as€indicativeÏof€rapid€degradation.€€Abiotic€degradation€such€as€hydrolysis,€primary€degradation,€both€abiotic€andÏbiotic,€degradation€in€non„aquatic€media€and€proven€rapid€degradation€in€the€environment€may€all€beÏconsidered€in€defining€rapid€degradability.€€[Special€guidance€on€data€interpretation€is€provided€in€theÏGuidance€Document].ÌÌ2.9.2.2.6à ½ àò òChronic€aquatic€toxicityó ó€data€are€less€available€than€acute€data€and€the€range€of€testingÐ y($' Ðprocedures€less€standardised.€€Data€generated€according€to€the€OECD€Test€Guidelines€210€(Fish€EarlyÏLife€Stage),€202€Part€2€or€211€(Daphnia€Reproduction)€and€201€(Algal€Growth€Inhibition)€may€beÏaccepted.€€Other€validated€and€internationally€accepted€tests€may€also€be€used.€€The€ððno€observed€effectÏconcentrationsðð€(NOECs)€or€other€equivalent€L(E)Cx€shall€be€used.Ìâ âÐ - (, Ðò òÔ& ` Ôâ â2.9.2.3à ½ àà  àCLASSIFICATION€CATEGORIES€AND€CRITERIAÐ y Ðó óÌ2.9.2.3.1à ½ àSubstances€meeting€the€following€criteria€shall€be€categorised€as€'dangerous€to€the€aquaticÐ QØ Ðenvironment'€for€transport€purposes,€if€they€satisfy€the€criteria€for€Acute€I€(and€Chronic€I€by€default)€orÏChronic€II.€€These€criteria€describe€in€detail€the€classification€categories€set€out€diagrammatically€inÏ2.9.2.8.ÌÌò òÔ'`yB,ÔAcute€toxicityó óÐ í t ÐÌÔ*qƒ (ddd Xdd Xdd X±#±#qÔÔ,(ŠŠÔÔ+  ÔÐ 1€ Å L  €€‚X‚„„1ÐÌò òòòCategory:€Acute€IÐ    Ðó óóóAcute€toxicity:Ð õ|  ÐÌ€€€€€€€€€€96€hr€LCòò50óó€(for€fish)€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€ðð1€mg/L€€€and/orÐ ÍT  ÐÌ€€€€€€€€€€48€hr€ECòò50óó€(for€crustacea)€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€ðð1€mg/L€€€and/orÐ ¥, ÐÌ€€€€€€€€€€72€or€96hr€ErCòò50óó€(for€algae€or€other€aquatic€plants)€€€€€€€€€€€€€€ðð1€mg/L.Ð } ÐÌCategory:€Acute€I€may€be€subdivided€for€some€regulatory€systems€to€include€a€lower€bandÏat€LCòò50óó€or€ECòò50óó€ðð0.1€mg/L.Ð AÈ ÐÐ5+)-´ X0  5Ðò òÌChronic€toxicityó óÐ 5¼ ÐÌÔ*Oƒ (d(d(ŠŠ±#±#OÔÔ,(ŠŠÔÔ+  ÔÐ 1€  ” €€‚X‚„„1ÐÌò òòòCategory:€Chronic€Ió óóóÐ QØ ÐAcute€toxicity:Ì€€€€€€€€€€96€hr€LCòò50óó€(for€fish)€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€ðð1€mg/L€€and/orÐ )° Ѐ€€€€€€€€€48€hr€ECòò50óó€(for€crustacea)€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€ðð1€mg/L€€and/orÐ  œ Ѐ€€€€€€€€€72€or€96hr€ErCòò50óó€(for€algae€or€other€aquatic€plants)€€€€€€€€€€€€€€€€€€€€€€€€€ðð1€mg/LÐ !ˆ Ðand€the€substance€is€not€rapidly€degradable€and/or€the€log€Kow€ðð4€(unless€the€experimentallyÐ í!t  Ðdetermined€BCF€<500).ÌÐ5+)Å#L" X0  5ÐÌÌÌÔ*Oƒ (d(d(ŠŠ ±#±#OÔÔ,(ŠŠÔÔ+  ÔÐ 1€ ¥',#% €€‚X‚„„1ÐÌò òòòCategory:€Chronic€IIó óóóÐ é(p$' ÐAcute€toxicityÌ€€€€€€€€€€96€hr€LCòò50óó€(for€fish)€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€>1€to€ðð10€mg/L€€and/orÐ Á*H&) Ѐ€€€€€€€€€48€hr€ECòò50óó€(for€crustacea)€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€>1€to€ðð10€mg/L€€and/orÐ ­+4'* Ѐ€€€€€€€€€72€or€96hr€ErCòò50óó€(for€algae€or€other€aquatic€plants)€€€€€€€€€€€€€€€>1€to€ðð10€mg/LÐ ™, (+ Ðand€the€substance€is€not€rapidly€degradable€and/or€the€log€Kow€ðð4€(unless€the€experimentallyÐ …- ), Ðdetermined€BCF€<500),€unless€the€chronic€toxicity€NOECs€are€>€1€mg/L.€ÌÐ5+)]/ä*. X0  5Ðñ%ñÌÌÌñ%ñò ò2.9.2.4à ½ àà  àRATIONALE€FOR€THE€SCHEMEÐ y Ðó óÌ2.9.2.4.1à ½ àThe€classification€scheme€recognises€that€the€core€intrinsic€hazard€to€aquatic€organisms€isÐ QØ Ðrepresented€by€both€the€acute€and€chronic€toxicity€of€a€substance.€€Distinction€is€made€between€the€acuteÏhazard€and€the€chronic€hazard€and€therefore€separate€hazard€categories€are€defined€for€both€propertiesÏrepresenting€a€gradation€in€the€level€of€hazard€identified.€€The€lowest€of€the€available€toxicity€values€shallÏbe€used€to€define€the€appropriate€hazard€category(s).€There€may€be€circumstances,€however,€when€aÏweight€of€evidence€approach€may€be€used.€€Acute€toxicity€data€are€the€most€readily€available€and€theÏtests€used€are€the€most€standardised.€€For€that€reason,€these€data€form€the€core€of€the€classificationÏscheme.ÌÌ2.9.2.4.2.€à  àAcute€toxicity€represents€a€key€property€in€defining€the€hazard€where€transport€of€largeÐ $  Ðquantities€of€a€substance€may€give€rise€to€short„term€dangers€arising€from€accidents€or€major€spillages.ÏHazards€categories€up€to€LCòò50óó€or€ECòò50óó€values€of€10€mg/L€are€thus€defined,€although€categories€up€toÐ uü  Ð1000€mg/L€may€be€used€in€certain€regulatory€frameworks.€€[The€Acute€category€I€may€be€further€sub„¼divided€to€include€an€additional€category€for€acute€toxicity€LCòò50óó€or€ECòò50óó€ðð0.1€mg/L€in€certain€regulatoryÐ MÔ  Ðsystems€such€as€that€defined€by€MARPOL€73/78€Annex€II€concerning€bulk€transport€by€sea].ÌÌ2.9.2.4.3à ½ àFor€packaged€substances€it€is€considered€that€the€principal€hazard€is€defined€by€chronicÐ ˜ Ðtoxicity,€although€acute€toxicity€at€LCòò50óó€or€ECòò50óó€levels€ðð1€mg/L€is€also€considered€hazardous.€€LevelsÐ ý„ Ðof€substances€up€to€1€mg/L€are€considered€to€be€possible€in€the€aquatic€environment€following€normalÏuse€and€disposal.€€At€toxicity€levels€above€this,€the€short„term€toxicity€itself€does€not€describe€theÏprincipal€hazard,€which€arises€from€low€concentrations€causing€effects€over€a€longer€time€scale.€€Thus,Ïa€number€of€hazard€categories€are€defined€which€are€based€on€levels€of€chronic€aquatic€toxicity.€€ChronicÏtoxicity€data€are€not€available€for€many€substances€and€it€is€necessary€to€use€the€available€data€on€acuteÏtoxicity€to€estimate€this€property.€€The€intrinsic€properties€of€a€lack€of€rapid€degradability€and/or€aÏpotential€to€bioconcentrate€in€combination€with€acute€toxicity€may€be€used€to€assign€a€substance€to€aÏchronic€hazard€category.€€Chronic€toxicity€showing€NOECs€>1€mg/L€indicates€that€there€is€no€chronicÏhazard€category€classification.ÌÌ2.9.2.4.4.à  àWhile€the€current€scheme€uses€acute€toxicity€data€in€combination€with€a€lack€of€rapidÐ ! ¨ Ðdegradation€and/or€a€potential€to€bioaccumulate€as€the€basis€for€classification€for€assigning€a€chronicÏhazard€category,€actual€chronic€toxicity€data€form€a€better€basis€for€classification€where€these€data€areÏavailable.€€[It€is€thus€the€intention€that€the€scheme€should€be€further€developed€to€accommodate€suchÏdata.€€It€is€anticipated€that€in€such€a€further€development,€the€available€chronic€toxicity€data€would€beÏused€to€classify€in€the€chronic€hazard€in€preference€to€that€derived€from€their€acute€toxicity€inÏcombination€with€a€lack€of€rapid€degradation€and/or€a€potential€to€bioaccumulate].ÌÌ[2.9.2.4.5à  àRecognition€is€given€to€the€classification€goals€of€MARPOL€73/78€Annex€II€that€coversÐ '#& Ðthe€transport€of€bulk€quantities€in€shipsðð€tanks,€which€are€aimed€at€regulating€operational€discharges€fromÏships€and€the€assigning€of€suitable€ship€types.€€They€go€beyond€protecting€aquatic€ecosystems,€althoughÏthat€clearly€is€included.€€Additional€hazard€categories€may€thus€be€used€which€take€account€of€factorsÏsuch€as€physico„chemical€properties€and€mammalian€toxicity.]Ìâ âÐ ,¤'+ Ðò òÔ& t Ôâ ââ â2.9.2.5à ½ àà  à[EXPLANATORY€NOTES]ó óÐ y ÐÌ2.9.2.5.1à ½ àThe€organisms€fish,€crustacea€and€algae€are€tested€as€surrogate€species€covering€a€range€ofÐ QØ Ðtrophic€levels€and€taxa,€and€the€test€methods€are€highly€standardised.€€Data€on€other€organisms€may€also€Ïâ âbe€considered,€provided€they€represent€equivalent€species€and€test€endpoints.€€The€algal€growthÏinhibition€test€is€a€chronic€test,€but€the€ECòò50óó€is€treated€as€an€acute€value€for€classification€purposes.€€ThisÐ  œ ÐÔ'tynIÔECòò50óó€€is€normally€based€on€growth€rate€inhibition.€€If€only€the€ECòò50óó€based€on€reduction€in€biomass€isÐ  ˆ Ðavailable,€or€it€is€not€indicated€which€ECòò50óó€is€reported,€this€value€may€be€used€in€the€same€way.Ð í t ÐÌ2.9.2.5.2à ½ àAquatic€toxicity€testing€by€its€nature€involves€the€dissolution€of€the€substance€under€test€in€theÐ Å L  Ðwater€media€used€and€the€maintenance€of€a€stable€bioavailable€exposure€concentration€over€the€courseÏof€the€test.€€Some€substances€are€difficult€to€test€under€standard€procedures€and€[special€guidance€willÏbe€developed€on€data€interpretation€for€these€substances€and€how€the€data€should€be€used€when€applyingÏthe€classification€criteria].ÌÌ2.9.2.5.3à ½ àIt€is€the€bioaccumulation€of€substances€within€the€aquatic€organisms€that€can€give€rise€to€toxicÐ MÔ  Ðeffects€over€longer€time€scales€even€when€actual€water€concentrations€are€low.€€The€potential€toÏbioaccumulate€is€determined€by€the€partitioning€between€n„octanol€and€water.€€The€relationship€betweenÏthe€partition€coefficient€of€an€organic€substance€and€its€bioconcentration€as€measured€by€the€BCF€in€fishÏhas€considerable€scientific€literature€support.€€Using€a€cut„off€value€of€log€Kow€(log€P(o/w))€ðð4€isÐ ý„ Ðintended€to€identify€only€those€substances€with€a€real€potential€to€bioconcentrate.€€In€recognition€thatÏthe€log€Kow€is€only€an€imperfect€surrogate€for€a€measured€BCF,€such€a€measured€value€shall€always€takeÏprecedence.€€A€BCF€in€fish€of€<500€indicates€a€low€level€of€bioconcentration.ÌÌ2.9.2.5.4à ½ àSubstances€that€rapidly€degrade€can€be€quickly€removed€from€the€environment.€€While€effectsÐ ™  Ðcan€occur,€particularly€in€the€event€of€a€spillage€or€accident,€they€will€be€localised€and€of€short€duration.€Ï€The€absence€of€rapid€degradation€in€the€environment€can€mean€that€a€substance€in€the€water€has€theÏpotential€to€exert€toxicity€over€a€long€period€and€a€wide€area.€€One€way€of€demonstrating€rapidÏdegradation€utilises€the€biodegradation€screening€tests€designed€to€determine€whether€a€substance€is€Ïððreadily€biodegradableðð.€Thus€a€substance€which€passes€this€screening€test€is€one€that€is€likely€toÏbiodegrade€ððrapidlyðð€in€the€aquatic€environment,€and€is€thus€unlikely€to€be€persistent.€€However,€a€failureÏin€the€screening€test€does€not€necessarily€mean€that€the€substance€will€not€degrade€rapidly€in€theÏenvironment.€€Thus€a€further€criterion€allows€the€use€of€data€to€show€that€the€substance€did€actuallyÏdegrade€biotically€or€abiotically€in€the€aquatic€environment€by€>70%€in€28€days.€€Thus,€if€degradationÏis€demonstrated€under€environmentally€realistic€conditions,€then€the€definition€of€ððrapid€degradabilityððÏis€met.€€Many€degradation€data€are€available€in€the€form€of€degradation€half„lives€and€these€may€also€beÏused€in€defining€rapid€degradation.€€[Details€regarding€the€interpretation€of€these€data€are€furtherÏelaborated€in€the€Guidance€Document].€€Some€tests€measure€the€ultimate€biodegradation€of€theÏsubstance,€i.e.€full€mineralisation€is€achieved.€€Primary€biodegradation€shall€not€normally€qualify€in€theÏassessment€of€rapid€degradability€unless€it€can€be€demonstrated€that€the€degradation€products€do€notÏfulfil€the€criteria€for€classification€as€dangerous€to€the€aquatic€environment.ÌÌ2.9.2.5.5à ½ àThe€criteria€used€reflect€the€fact€that€environmental€degradation€may€be€biotic€or€abiotic€(e.g.Ð 1+¸&* Ðhydrolysis).€€Equally,€failing€the€ready€biodegradability€criteria€in€the€OECD€tests€does€not€mean€thatÏthe€substance€will€not€be€degraded€rapidly€in€the€real€environment.€€Thus,€where€such€rapid€degradationÏcan€be€shown,€the€substance€shall€be€considered€as€rapidly€degradable.€€Hydrolysis€may€be€consideredÏif€the€hydrolysis€products€do€not€fulfil€the€criteria€for€classification€as€dangerous€to€the€aquaticÏenvironment.€€A€specific€definition€of€rapid€degradability€is€included€at€2.9.2.6.€€Other€evidence€of€rapidÐ Í/T+/ Ðdegradation€in€the€aquatic€environment€may€also€be€considered€and€may€be€of€particular€importanceÏwhere€the€substances€inhibit€microbial€activity€at€the€concentration€levels€used€in€standard€testing.€€[TheÏrange€of€available€data€and€guidance€on€its€interpretation€are€provided€in€the€Guidance€Document].ÌÌ2.9.2.5.6à ½ àFor€inorganic€compounds€and€metals,€the€concept€of€degradability€as€applied€to€organicÐ )° Ðcompounds€has€limited€or€no€meaning.€€Rather€the€substance€may€be€transformed€by€normalÏenvironmental€processes€either€to€increase€or€to€decrease€the€bioavailability€of€the€toxic€species.€€EquallyÏthe€use€of€bioaccumulation€data€shall€be€treated€with€care.€€[Specific€guidance€will€be€provided€on€howÏthese€data€for€such€substances€may€be€used€in€meeting€classification€criteria€requirements].ÌÌ2.9.2.5.7à ½ àPoorly€soluble€inorganic€compounds€and€metals€may€be€acutely€or€chronically€toxic€in€theÐ ± 8  Ðaquatic€environment€depending€on€the€intrinsic€toxicity€of€the€bioavailable€inorganic€species€and€the€rateÏand€amount€of€this€species€which€may€enter€solution.€€[A€protocol€for€testing€these€poorly€solubleÏsubstances€is€being€developed€and€will€be€covered€further€in€the€Guidance€Document].ÌÌ2.9.2.5.8à ½ àWhile€experimentally€derived€test€data€are€preferred,€where€no€experimental€data€are€available,Ð MÔ  Ðvalidated€Quantitative€Structure€Activity€Relationships€(QSARs)€for€aquatic€toxicity€and€log€Kow€mayÏbe€used€in€the€classification€process.€€Such€validated€QSARs€may€be€used€without€modification€to€theÏagreed€criteria,€if€restricted€to€chemicals€for€which€their€mode€of€action€and€applicability€are€wellÏcharacterized.€€[Validity€may€be€judged€according€to€the€criteria€established€within€the€US„¼EPA/EU/Japan€Collaborative€Project].€€[Reliable€calculated€toxicity€and€log€Kow€values€shall€be€valuableÏin€a€safety€net€context.]€€[QSARs€for€predicting€ready€biodegradation€are€not€yet€sufficiently€accurateÏto€predict€rapid€€degradation].ÌÌò ò2.9.2.6à ½ àà  àRAPID€DEGRADABILITYó óÐ ™  ÐÌSubstances€are€considered€rapidly€degradable€in€the€aquatic€environment€if€the€following€criteria€are€met:ÌÌ(a)à ½ à€if€in€28„day€ready€biodegradation€studies,€the€following€levels€of€degradation€are€achieved;Ð IÐ ÐÌà0 e àà0½e#e#àtests€based€on€dissolved€organic€carbon:€€70%Ð ½#½# ÐÌà e àà ½ àtests€based€on€oxygen€depletion€or€carbon€dioxide€generation:€60%€€ofÌà e àà ½ àtheoretical€maximaÌÌà0 e àà0½e#e#àThese€levels€of€biodegradation€shall€be€achieved€within€10€days€of€the€start€of€degradationÏwhich€point€is€taken€as€the€time€when€10%€of€the€substance€has€been€degraded.Ð ½#½# ÐÓB.(„Ü4Œ ä <”ìDœôL¤ü!(„XBÓÌà e àorÌÌÓ XÓÓ?+( (€Ø 0 ˆà8è@˜ðH!(„X?ÓÓ ¨ýÓ(b)à  àif,€in€those€cases€where€only€BOD€and€COD€data€are€available,€when€the€ratio€of€BOD5/CODÐ Y)à$( Ðis€ðð0.5Ð E*Ì%) ÐÓ ¨ýÓÓ XÓÓB.(„Ü4Œ ä <”ìDœôL¤ü!((ŒXBÓÌà e àorÌÌÓ XÓÓ?+( (€Ø 0 ˆà8è@˜ðH!(„X?ÓÓ ¨ýÓ(c)à  àif€other€convincing€scientific€evidence€is€available€to€demonstrate€that€the€substance€can€beÐ õ-|)- Ðdegraded€(biotically€and/or€abiotically)€in€the€aquatic€environment€to€a€level€>70%€within€a€28Ïday€period.Ð Í/T+/ ÐÓ ¨ýÓÓ XÓñLñÓB.(„Ü4Œ ä <”ìDœôL¤ü!((ŒXBÓÐ  y ÐñLñ2.9.2.7à0 a àò òClassification€Scheme€for€Substances€Dangerous€in€Transport€to€the€AquaticÐ y ÐEnvironmentó ó€ò ò(abridged€OECD€Table)ó óÐiða#a# ÐÌÔ*Oƒ (d(d(ŠŠ ±#±#OÔÔ,‘rRÔÔ,$BRÔÔ,úBRÔÔ,t BrÔÔ+  ÔÐ ;€( EÌ €€‚X‚ƒƒ„„‡d‡;ÐÌÓ  ÓToxicityÐ I€6%‰!d „„‡d‡IÐÌDegradabilityÐ I€6%‰d „„‡d‡IÐÌBioaccumulationÐ I€6%‰ d „„‡d‡IÐÌClassificationÐ;1/‰ " X d ;ÐÔ*‚ƒ (d(d‘rR$BRúBRt Br ±#±#‚ÔÔ,)rRÔÔ,hBRÔÔ,$BRÔÔ,úBRÔÔ,BRÔÔ,ZBrÔÔ+  ÔÐ 7€$ u ü  €€‚8‚„„‡d‡7ÐAcute€Ì(note€1)Ð I€6%™  "d „„‡d‡IÐChronic€Ì(note€2)Ð C€0%™ "d „„CÐ(note€3)Ð =€*­ 4" „„=Ð(note€4)Ð C€0­ 4" „„‡d‡CÐAcuteÌÓ  ÓÐ I€6%™ d „„‡d‡IÐChronicÐ X€E+­ 4" 80 d €€‚X‚„„‡d‡XÐÌBox€1ÌÌÓ  Óvalue€€ððÐ ÑX  Ð1.00ÌÓ  ÓÌÌÌBox€2ÌÌ1.0€<ÌvalueÌðð€10.0Ð ¤! ÐÌÌÌÌÌÌÐ I€6%‘(d „„‡d‡IÐÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌBox€7ÌÌvalue€>Ì1.00Ð I€6%¥,;d „„‡d‡IÐÌBox€5ÌÌÌÌÌÌÌÌÌÓ  Ólack€of€rapidÌdegradabilityÌÓ  ÓÌÌÐ @€-õ|Jd „„‡d‡@ÐÌBox€6ÌÌÌÌÌÌÌÌÌÓ  ÓBCF€€ðð€€500€or,Ð EÌU Ðif€absentÌlog€Kow€ðð€4Ð ¤W ÐÓ  ÓÌÐ @€-õ|Yd „„‡d‡@ÐÌÓ  ÓòòAcute€IÐ ù €[ ÐÌóóBox€1Ð ÑX ] ÐÌÌÌÌòòÌÌóóÌÌÌÌÐ C€0%õ|hd „„CÐòòÌÓ  ÓChronic€IÌÌÓ  ÓóóBoxes€1+5+6Ð ÑX l ÐBoxes€1+5ÌÓ  ÓBoxes€1+6ÌÌÌòòChronic€IIÐ môq ÐÌÓ  ÓóóBoxes€2+5+6Ð EÌs ÐBoxes€2+5ÌBoxes€2+6ÌUnless€Box€7ÌÓ  ÓÌÌÌÓ  ÓÌ€ÌÓ  ÓÐ5+)‘| X0   5ÐÌԀ ÈÂXXÓ=ÔNotes€to€the€table:Ð ™ } ÐÌÓ °ÓÓ?+( (€Ø 0 ˆà8è@˜ðH!((ŒX?ÓÓ PûÓNote€1.à a àAcute€toxicity€band€based€on€LCòò50óó€or€ECòò50óó€values€in€mg/L€for€fish,€crustacea€and/or€algae€or€other€aquatic€plants€(orÐ ù € ÐQSAR€estimation€if€no€experimental€data)Ìà a àWhere€the€algal€toxicity€ErCòò50óó€[€=€ECòò50óó€(growth€rate)]€falls€more€than€100€times€below€the€next€most€sensitive€speciesÐ Y"à Ðand€results€in€a€classification€based€solely€on€this€effect,€consideration€shall€be€given€to€whether€this€toxicity€isÏrepresentative€of€the€toxicity€to€aquatic€plants.€€Where€it€can€be€shown€that€this€is€not€the€case,€professional€judgementÏmay€be€used€in€deciding€if€classification€shall€be€applied.€€Classification€shall€be€based€on€the€ErCòò50óó.€€In€circumstancesÐ i$ð„ Ðwhere€the€basis€of€the€ECòò50óó€is€not€specified€and€no€ErCòò50óó€is€recorded,€classification€shall€be€based€on€the€lowest€ECòò50óóÐ %  … Ðavailable.ÌNote€2.à a àChronic€toxicity€band€based€on€NOEC€values€in€mg/L€for€fish€or€crustacea€or€other€recognised€measures€for€long„termÐ y&"‡ Ðtoxicity.€€[It€is€intended€to€develop€the€system€further€to€include€chronic€toxicity€data.]ÌNote€3.à a àLack€of€rapid€degradability€is€€based€on€either€a€lack€of€ready€biodegradability€or€other€evidence€of€lack€of€rapidÐ Ù'`#‰ Ðdegradation.ÌNote€4.à a àPotential€to€bioaccumulate,€based€on€an€experimentally€derived€BCF€ðð€500€or,€if€absent,€a€log€Kow€ðð€4€provided€log€KowÐ 9)À$‹ Ðis€an€appropriate€descriptor€for€the€bioaccumulation€potential€of€the€substance.€€Measured€log€Kow€values€take€precedenceÏover€estimated€values€and€measured€BCF€values€take€precedence€over€log€Kow€values.ÌÌÓ PûÓÓ °ÓÓ  ÓÓB.(„Ü4Œ ä <”ìDœôL¤ü!((ŒXBÓ.Ð  ù+€' ÐÔ€XÓ=X ÈÔò òñMññMññNñó óÔ‡Xñ;XXXÓ=ÔÔ#†XÓ=XXXñ;ç|#ÔÔ‡Xñ;XXXÓ=ÔÔ#†XÓ=XXXñ;)}#ÔÔ‡Xñ;XXXÓ=ÔÔ#†XÓ=XXXñ;k}#ÔÔ‡Xñ;XXXÓ=ÔÔ#†XÓ=XXXñ;­}#ÔÔ‡Xñ;XXXÓ=ÔÔ#†XÓ=XXXñ;ï}#ÔÔ‡Xñ;XXXÓ=ÔÔ#†XÓ=XXXñ;1~#ÔÔ‡Xñ;XXXÓ=ÔÔ#†XÓ=XXXñ;s~#Ôò òñNññMññMññOñó óÔ‡Xñ;XXXÓ=ÔÔ#†XÓ=XXXñ;Ï~#ÔÔ‡Xñ;XXXÓ=ÔÔ#†XÓ=XXXñ;#ÔÔ‡Xñ;XXXÓ=ÔÔ#†XÓ=XXXñ;S#ÔÔ‡Xñ;XXXÓ=ÔÔ#†XÓ=XXXñ;•#ÔÔ‡Xñ;XXXÓ=ÔÔ#†XÓ=XXXñ;×#ÔÔ‡Xñ;XXXÓ=ÔÔ#†XÓ=XXXñ;€#ÔÔ‡Xñ;XXXÓ=ÔÔ#†XÓ=XXXñ;[€#Ôò òñOññPñó óÔ‡Xñ;XXXÓ=ÔÔ#†XÓ=XXXñ;­€#ÔÔ‡Xñ;XXXÓ=ÔÔ#†XÓ=XXXñ;ï€#ÔÔ‡Xñ;XXXÓ=ÔÔ#†XÓ=XXXñ;1#ÔÔ‡Xñ;XXXÓ=ÔÔ#†XÓ=XXXñ;s#ÔÔ‡Xñ;XXXÓ=ÔÔ#†XÓ=XXXñ;µ#ÔÔ‡Xñ;XXXÓ=ÔÔ#†XÓ=XXXñ;÷#ÔÔ‡Xñ;XXXÓ=ÔÔ#†XÓ=XXXñ;9‚#Ôò òñPññQñó óÔ‡Xñ;XXXÓ=ÔÔ#†XÓ=XXXñ;‹‚#ÔÔ‡Xñ;XXXÓ=ÔÔ#†XÓ=XXXñ;Í‚#ÔÔ‡Xñ;XXXÓ=ÔÔ#†XÓ=XXXñ;ƒ#ÔÔ‡Xñ;XXXÓ=ÔÔ#†XÓ=XXXñ;Qƒ#ÔÔ‡Xñ;XXXÓ=ÔÔ#†XÓ=XXXñ;“ƒ#ÔÔ‡Xñ;XXXÓ=ÔÔ#†XÓ=XXXñ;Õƒ#ÔÔ‡Xñ;XXXÓ=ÔÔ#†XÓ=XXXñ;„#Ôò òñQññRññMñÌñMññRñ2.9.2.8à0 ½ àPROCEDURE€FOR€CLASSIFYING€A€SUBSTANCE€DANGEROUS€TO€THEÐ y ÐAQUATIC€ENVIRONMENT€WHEN€TRANSPORTED€IN€PACKAGESó óÐeì½#½# ÐñLñÓ  ÓñLñÓK€(€X––QØKÓÓ  Ó1.€€€€€€€€€Is€the€substanceÌdangerous€to€the€aquaticÌenvironment?ÌÓC€ € Hy !!!!CÓÓ  ÓÌÓU€*€Ø––e ìUÓÓ  Ó2.€€€€€€€€€€€€Acute€aquatic€toxicity€valueÌðð€10mg/L€(Box€2)Ð ƒ  Ð(if€value€>€1€mg/L€goÌdirectly€to€5.)ÌÓC€ € HŠ !!!!CÓÓ  ÓÌNoÌ€€€€€€€€€€€€€€€€€€€€€€YesÌÓU€*€Ø––NÕ UÓÓ  Ó3.€€€€€€€€€€€€€€€€Potential€toÌbioaccumulateÌlog€Kow€ðð€4€(unlessÐ ið ÐBCF<500)(Box€6)ÌÓC€ € Hsú!!!!CÓÓ  ÓÌYesÌ€€€€€€€€€€€€€€€€€€€€€€€NoÌÓU€*€Ø––7¾UÓÓ  Ó4.€€€€€€€€€€€€€€€€Not€readilyÌdegradableÌ(Box€5)ÌÓ  ÓÌÓC€ € H\ã!!!!CÓÓ  ÓÌYes€€€€€€€€€€€€€€€€€€3b.€NOEC€>1Ì€€€€€€€€€€€€€€€€€€€€€€€€€mg/L(Box€7)Ì€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€YesÌ€€€€€€€€€€€€€€€€€€€€€€€€€€NoÌÓU€*€Ø––ø UÓÓ  Ó5.€Acute€aquatic€toxicityÌvalue€ðð€1mg/LÐ " Ð(Box€1)ÌÓC€ € H $§!!!!CÓÓ  ÓÌYesÌÓU€*€Ø––ø%! UÓÓ  ÓClassified€as€dangerous€toÌthe€aquatic€environmentÌÓ  Ó€€€€€€NotÌ€classified€asÌdangerous€toÌ€€the€aquaticÌ€environmentÌÌÓC€ € H.˜)!!!! CÓÓ  ÓÌñIñÌÌ€ñIñ€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€Ì€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€Ð é/p+, ЇñJñÌÌÌÐ  y ÐñJñ2.9.2.9à ½ àà  àSubstances€dangerous€to€the€aquatic€environment€not€otherwise€classified€under€theseÐ y ÐRegulations€should€be€designated:ÌÌ€€€€€€UN3077€[ENVIRONMENTALLY€HAZARDOUS€SUBSTANCE]€SOLID,€N.O.S.€orÌÌ€€€€€€UN3082€[ENVIRONMENTALLY€€HAZARDOUS€SUBSTANCE]€LIQUID,€N.O.S.ÌÌThey€shall€be€assigned€to€packing€Group€IIIÌÌÌÌÌÓ  Ó____________________ÌÓ  ÓÌÌÌÌò òòòConsequential€amendmentsó óóóÐ %¬ ÐÌÌUnited€Nations€Recommendations€on€the€Transport€of€Dangerous€GoodsÌÌAmend€paragraph€10€to€read:ÌÌÓ XÓÓ?+( (€Ø 0 ˆà8è@˜ðH!(„X?ÓÓ ¨ýÓà  à"Many€of€the€substances€listed€in€Classes€1€to€9€are€deemed€as€being€dangerous€to€theÏenvironment.€€Additional€labelling€is€not€always€specified€except€for€transport€by€sea.€€CriteriaÏfor€substances€dangerous€to€the€aquatic€environment€are€given€in€Chapter€2.9€of€the€ModelÏRegulations."ÌÓ ¨ýÓÓ XÓÓB.(„Ü4Œ ä <”ìDœôL¤ü!((ŒXBÓÌÌChapter€3.3ÌÌAmend€special€provision€179€to€read:ÌÌÓ XÓÓ?+( (€Ø 0 ˆà8è@˜ðH!(„X?ÓÓ ¨ýÓà  à"This€designation€shall€be€used€for€substances€which€are€dangerous€to€the€aquatic€environmentÏor€which€are€marine€pollutants€that€do€not€meet€the€classification€criteria€of€any€other€class€orÏanother€substance€within€Class€9.€€This€designation€may€also€be€used€for€wastes€not€otherwiseÏsubject€to€these€Regulations€but€which€are€covered€under€the€Basel€Convention."ÌÓ ¨ýÓÓ XÓÓB.(„Ü4Œ ä <”ìDœôL¤ü!((ŒXBÓÌÌñKñà@mm$aà__________ñKñ