Ecotoxicology and Environmental Safety,
Год журнала:
2024,
Номер
287, С. 117333 - 117333
Опубликована: Ноя. 1, 2024
Inhalation
toxicity
assessment
is
a
crucial
tool
for
the
identification
and
classification
of
hazardous
materials
like
volatile
organic
carbons,
aerosols,
particulate
matter.
Unlike
traditional
acute
inhalation
studies
that
use
mortality
as
an
endpoint,
Fixed
Concentration
Procedure
(FCP)
emphasizes
"evident
toxicity"
by
monitoring
behavior,
weight,
food
intake.
This
reduces
reliance
on
but
doesn't
directly
address
respiratory
system
impact.
The
present
study
introduced
respirometer-based
status
method.
evaluation
integrated
respirometric
with
animal
exposure
chamber,
enabling
real-time
oxygen
consumption.
ICR
mice
were
exposed
to
various
concentrations
benzene
(10,
20,
40,
80
mg/L
air),
toluene
(7.5,
15,
30,
60
xylene
air).
respiration
rate
decreased
70
%
69
(80
air)
(60
respectively,
EC
Separations,
Год журнала:
2025,
Номер
12(5), С. 127 - 127
Опубликована: Май 15, 2025
Sulfolane,
an
organic
solvent
widely
used
in
the
petrochemical
industry,
has
raised
concerns
due
to
its
potential
health
risks
and
environmental
mobility.
Toxicological
studies
suggest
that
it
may
negatively
affect
human
ecological
health,
highlighting
need
for
risk
assessments.
Alongside
sulfolane,
BTEX
compounds
(benzene,
toluene,
ethylbenzene,
xylenes)
are
commonly
present
operations,
their
migration
be
influenced
by
sulfolane.
This
study
developed
a
gas
chromatography–mass
spectrometry
(GC-MS)
method
simultaneous
analyses
of
sulfolane
water.
The
sample
preparation
was
designed
simplicity
allow
easy
implementation
without
specialized
equipment.
characterized,
validated,
ruggedness
tested
through
experimental
design.
then
applied
evaluate
stability
water
samples
under
various
storage
conditions,
analyze
97
real
collected
from
contaminated
site
Alberta,
Canada.
results
identified
17
with
concentrations
exceeding
maximum
limits
aquatic
life
preservation,
three
detectable
toluene
levels.
These
findings
highlight
further
research
better
understand
contamination
profiles
assess
associated
risks.
Sustainability,
Год журнала:
2024,
Номер
16(15), С. 6494 - 6494
Опубликована: Июль 29, 2024
BTEX
(benzene,
toluene,
ethylbenzene,
and
xylenes)
are
widely
used
in
pesticide
manufacturing
industries.
Due
to
their
high
volatility
toxicity,
compounds
often
leak
during
production,
storage,
transportation,
posing
significant
threats
human
health
the
environment.
In
this
study,
soil
groundwater
samples
at
a
chemical
industrial
site
southern
China
were
collected
analyzed.
Soil
concentrations
ranged
from
0.05–142
mg/kg
for
benzene,
0.05–315
0.05–889
0.05–2800
m-&p-xylene,
0.05–668
o-xylene.
Groundwater
0.7–340,000
μg/L
0.9–4070
0.5–1900
1.6–6000
0.6–1500
While
average
relatively
low,
there
numerous
locations
where
levels
significantly
exceeded
national
standards.
Despite
minimal
risks
pollution,
utilizing
drinking
or
bathing
could
result
unacceptable
cancer
non-cancer
risks.
These
findings
underscore
urgent
need
remediation
efforts,
particularly
concerning
benzene
contamination
groundwater,
ensure
sustainable
utilization
of
question.
Advanced Sustainable Systems,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 28, 2024
Abstract
The
abundance
and
environmental
friendliness
in
nature
of
sulfur
(S)
make
Li–S
batteries
more
attractive
addition
to
the
high
theoretical
capacity
(1675
mAh
g
−1
)
energy
density
(2600
Wh
kg
batteries.
In
this
study,
a
bio‐based
S
cathode
with
graphene
(Gr)
coating,
capable
effectively
suppressing
shuttle
effect
polysulfides,
is
enabled
via
networking
soy
protein
(SP)
polydopamine
(PDA)
form
functional
bio‐binder
(SP‐PDA).
Dopamine
self‐polymerization
SP
not
only
generates
interpenetrated
network
for
but
also
makes
denatured
structure
rich
groups
effective
trapping
polysulfides.
Meanwhile,
Gr
coating
low
impedance,
electronic
ionic
conductivity
on
surface
further
significantly
reduces
polysulfide
dissolution.
Consequently,
bio‐cathode
(SP‐PDA@Gr)
demonstrate
excellent
rate
performance
long
cycling
capacity.
specific,
under
current
0.5
A
at
70%
(500
retention,
cycle
life
cell
SP‐PDA@Gr
600
cycles,
i.e.,100
times
longer
than
that
PVDF
binder.
This
study
provides
sustainable
strategy
enhancing
through
natural
proteins
bio‐binders.
