Environmental Engineering Reference
In-Depth Information
Protozoa.
(
Tetrahymena
pyriformis
)
40-100.nm
MWCNT.=.0.1,.0.2,.
2.0,.10,.50.100.
mg/L
Growth.of.
Tetrahymena
pyriformis
.in.either.
peptone.yeast.
extract.or.iltered.
pond.water
Growth.in.peptone.yeast.
extract.medium,.but.
inhibited.the.growth.of.the.
cells.(50-70%.of.controls).
when.cultured.in.iltered.
pond.water.
Effects.seen.at.highest.dose.
(100.mg/L).most.likely.not.
environmentally.realistic.
[16]
Copepod.
(
Amphiascus
tenuiremis
)
Fluorescent.<18.nm;.
puriied.“AP”.50-
100.nm.(10-nm.
diameter)
0-10.mg/L.SWCNT
Life-cycle.mortality,.
development,.and.
reproduction
No.effects.with.puriied.
SWCNTs;.“as.prepared”.
(AP).SWCNTs.showed.
effects.on.all.3.endpoints,.
with.an.LOEL.of.10.mg/L;.
luorescent.fractions.showed.
life-cycle.effects.at.all.dose.
levels.
Copepods.were.exposed.to.“as.
prepared”.SWCNTs,.puriied.
(electrophoresis),.or.
luorescent.(<18.nm).
nanocarbon.byproducts..
Conclude.effects.are.size-
dependent.(smallest.most.
toxic).
[12]
Water.lea.(
Daphnia
magna
)
1.2.nm.diameter;.
length.not.speciied
2.5,.5,.10,.20.mg/L.
SWCNT
Daphnia
ability.to.
ingest.and.modify.
lipid-coated.
SWCNTs.
Daphnia
were.able.to.ingest.
and.utilize.the.lipid.coating.
of.SWCNTs.as.a.nutrient.
source;.LOEC.for.mortality.
(20%).10.mg/L
Purity.of.SWCNTs.was.85%;.
Daphnia
.had.a.“strong.effect.
on.the.solubility.of.
SWCNTs”.(decreased.%.
remaining.dissolved,.
apparently.by.ingestion).
[13]
Zebraish.(
Danio
rerio
.-.embryos)
11
20-360.mg/L.
SWCNT
%.Hatch;.length;.
head/trunk.angle
Negligible
Slight.hatching.delay.at.72.hpf.
(attributed.to.low.O
2
.or.Ni.
and.Co).
[1]
Zebraish.(
Danio
rerio
.-.embryos)
—
120,.240.mg/L.
DWCNT
%.Hatch;.length;.
head/trunk.angle
None
—
[1]
