Environmental Engineering Reference
In-Depth Information
table .
effects of nanomaterials on different species of aquatic organisms
species
size or diameter
exposure or dose
endpoint(s)
effect(s)
Commentary
Ref.
Water.lea.(
Daphnia
magna
)
30.nm.iltered;.100-
500.nm.uniltered
0.2,.1,.2,.5,.6,.8,.and.
10.mg/L.TiO
2
%.Survival
LOEC.>0.2.but.<2.mg/L.(6.
and.9%.mortality,.
respectively).
Filtered:.6.mg/L.TiO
2
.
(empirical.LC50.(uniltered.
(no.mortality.>9%).
[4]
Water.lea.(
Daphnia
magna
)
~30
2.mg/L.TiO
2
Change.in.hopping.
frequency,.heart.
rate,.and.appendage.
movement
No.effect.on.hopping.
frequency,.heart.rate,.or.
feeding.appendage.
movement.
TiO
2
.iltered.before.
Daphnia
.
exposure.
[5]
Water.lea.(
Daphnia
magna
);.algae.
(
Desmodesmus
subspicatus
)
Product.1:.25.nm.
Product.2:.100.nm.
(100%.crystalline.
anastase)
0-50.mg/L.TiO
2
%.Mortality.and.
phototoxicity
Product.1.and.2:.LOEC.(12.5.
mg/L.and.“no.effect”.(50.
mg/L),.respectively,.for.
green.algae..Daphnids.show.
no.dose-response.curve.
(phototoxic.effects.appear.to.
persist.after.removal.of.light.
source).
Concentrations.of.TiO
2
.are.not.
environmentally.relevant.
(>10.mg/L.rarely.seen.for.any.
chemical)..At.this.exposure.
level,.physical.effects.are.
suspected.to.cause.
interference.with.Daphnid.
respiration.
[7]
Carp.(
Cyprinus
carpio
)
21.nm
160.mg.TiO
2
,.97.μg/L.
Cd
Bioaccumulation:.(2,.
5,.10,.15,.20,.25.
days)
TiO
2
.had.stronger.sorptive.
capacity.for.Cd.than.
naturally.suspended.
sediment..TiO
2
.greatly.
enhanced.the.
bioaccumulation.of.Cd.into.
carp.(146%).
Positive.correlation.between.
TiO
2
.concentration.and.Cd.in.
viscera.and.gills.of.ish.
[8]
