Environmental Engineering Reference
In-Depth Information
table . (Continued)
effects of nanomaterials on different species of aquatic organisms
species
size or diameter
exposure or dose
endpoint(s)
effect(s)
Commentary
Ref.
Zebraish.(
Danio
rerio
.-.embryos)
5-46.nm.(average.
11.6.nm)
0.04,.0.06,.0.07,.0.08,.
0.19,.038,.0.57,.
0.66,.0.71.nM.Ag.(8.
cell.embryos.for.120.
hr.post-fertilization)
%.Survival;.abnormal.
development.of.ins,.
tail,.spinal.cord,.
heart,.yolk.sac,.
head,.and.eyes
LOEC.(%.survival;.tail.and.
spinal.cord.lexure.and.
truncation).appears.to.be.
0.08.nM.of.silver.
nanoparticles;.
developmental.sensitivity:.
infold.>.tail.and.spinal.cord.
>.cardiac.>.yolk.sac.edema.
>.head.edema.>.eye.
malformation.
Comparative.toxicology.(e.g.,.
relative.to.silver.ion).dificult.
to.discern.due.to.dosimetry.
and.lack.of.statistical.analysis.
of.data.(also.unclear.whether.
residual.silver.may.be.having.
some.effect)..Unclear.what.
the.“critical.concentration”.of.
0.19.nM.silver.nanoparticles.
means.
[18]
Zebraish.(
Danio
rerio
.--.embryos)
10-1000.nm
120,.240.mg/L.CB
%.Hatch;.length;.
head/trunk.angle
None
—
[1]
Protozoa.(
Stylonychia
mytilus
)
60-100.nm
0.1-200.mg/L.
DWCNT
Inhibition.of.growth
Dose-dependent.growth.
inhibition.over.a.period.of.5.
days.with.a.LOEL.of.1.mg/
L..Hormesis.effects.on.
viability.>110%.for.0.1.mg/
L.and.>100%.for.5.mg/L..
Damage.to.the.
macronucleus.and.external.
membrane.of.the.cells..
MWCNT.(100.mg/L).
stimulated.
Ultrastructure.showed.
MWNTs.also.inside.cell.
mitochondria..Suggested.
Stylonychia
.could.play.a.
“signiicant.role”.as.a.“bio-
scavenger.of.carbon.
nanotubes”.in.the.aqueous.
environment..LOEL.not.
likely.to.be.an.
environmentally.relevant.
concentration.
[11]
