Environmental Science & Technology,
Год журнала:
2024,
Номер
58(42), С. 18940 - 18949
Опубликована: Окт. 9, 2024
Tire
wear
particles
(TWPs)
released
during
vehicle
driving
can
enter
water
bodies,
leading
to
leaching
of
tire
additives
(TAs)
in
aquatic
environments.
However,
the
transformation
behavior
and
related
ecological
impacts
TAs
their
products
(TPs)
remain
unclear.
In
this
study,
laboratory-based
simulation
experiments
field
investigations
were
conducted
explore
mechanisms
risks
TAs.
After
being
placed
river
for
24
h,
about
7–95%
12
investigated
TWPs
leached.
Forty-eight
TPs
from
eight
tentatively
identified
along
with
different
pathways
via
suspect
screening
by
high-resolution
mass
spectrometry.
Semiquantitative
results
indicated
that
derived
N-(1,3-dimethylbutyl)-N′-phenyl-p-phenylene-diamine
(6PPD)
predominant
leachates,
while
aryl
hydrolysis
quinone
main
pathways.
Field
on
urban
surface
samples
16
sites
Hong
Kong
revealed
occurrence
17
1
TP,
concentrations
ranging
13.9
2230
ng/L
(median
±
standard
deviation:
226
534
ng/L).
Sixteen
six
additionally
screening.
It
is
estimated
6PPD-quinone
seven
could
pose
medium
high
risk,
N-(1,3-dimethylbutyl)-N′-phenyl-p-quinonediimine,
a
frequently
detected
was
as
persistent-bioaccumulative-toxic
substance.
Ecotoxicology and Environmental Safety,
Год журнала:
2024,
Номер
282, С. 116689 - 116689
Опубликована: Июль 15, 2024
The
recent
acceleration
of
industrialization
and
urbanization
has
brought
significant
attention
to
N-(1,3-Dimethylbutyl)-N'-phenyl-p-phenylenediamine
quinone
(6-PPDQ),
an
emerging
environmental
pollutant
from
tire
wear,
due
its
long-term
effects
on
the
environment
organisms.
Recent
studies
suggest
that
6-PPDQ
can
disrupt
neurotransmitter
synthesis
release,
impact
receptor
function,
alter
signaling
pathways,
potentially
causing
oxidative
stress,
inflammation,
apoptosis.
This
review
investigates
potential
neurotoxic
prolonged
exposure,
mechanisms
underlying
cytotoxicity,
associated
health
risks.
We
emphasize
need
for
future
research,
including
precise
exposure
assessments,
identification
individual
differences,
development
risk
assessments
intervention
strategies.
article
provides
a
comprehensive
overview
6-PPDQ's
behavior,
impact,
neurotoxicity
in
environment,
highlighting
key
areas
challenges
research.
Toxics,
Год журнала:
2024,
Номер
12(6), С. 394 - 394
Опубликована: Май 28, 2024
As
an
antioxidant
and
antiozonant,
N-(1,3-Dimethylbutyl)-N′-phenyl-p-phenylenediamine
(6PPD)
is
predominantly
used
in
the
rubber
industry
to
prevent
degradation.
However,
6PPD
can
be
ozonated
generate
a
highly
toxic
transformation
product
called
quinone
(6PPD-quinone),
which
aquatic
terrestrial
organisms.
Thus,
6PPD-quinone,
two
emerging
contaminants,
have
attracted
extensive
attention
recently.
This
review
discussed
levels
distribution
of
6PPD-quinone
environment
investigated
their
effects
on
series
been
widely
found
air,
water,
dust,
while
data
soil,
sediment,
biota
are
scarce.
cause
teratogenic,
developmental,
reproductive,
neuronal,
genetic
toxicity
for
organisms,
at
environmentally
relevant
concentrations.
Future
research
should
pay
more
bioaccumulation,
biomagnification,
transformation,
mechanisms
6PPD-quinone.
Environmental Science & Technology,
Год журнала:
2024,
Номер
58(33), С. 14864 - 14874
Опубликована: Июль 24, 2024
Widely
used
antioxidants
can
enter
the
environment
via
urban
stormwater
systems
and
form
disinfection
byproducts
(DBPs)
during
chlorination
in
downstream
drinking
water
processes.
Herein,
we
comprehensively
investigated
occurrence
of
39
from
runoff
to
surface
water.
After
a
storm
event,
concentrations
increased
by
1.4-fold
102-110
ng/L
128-139
ng/L.
Widespread
event
could
transform
into
toxic
DBPs
disinfection.
Moreover,
yields
trihalomethanes,
haloacetaldehydes,
haloacetonitriles
(HANs),
halonitromethanes
widely
considerably
with
an
increasing
chlorine
dose
contact
time.
Specifically,
dichloroacetonitrile
diphenylamine
(DPA)
Environmental Science & Technology,
Год журнала:
2024,
Номер
58(42), С. 18940 - 18949
Опубликована: Окт. 9, 2024
Tire
wear
particles
(TWPs)
released
during
vehicle
driving
can
enter
water
bodies,
leading
to
leaching
of
tire
additives
(TAs)
in
aquatic
environments.
However,
the
transformation
behavior
and
related
ecological
impacts
TAs
their
products
(TPs)
remain
unclear.
In
this
study,
laboratory-based
simulation
experiments
field
investigations
were
conducted
explore
mechanisms
risks
TAs.
After
being
placed
river
for
24
h,
about
7–95%
12
investigated
TWPs
leached.
Forty-eight
TPs
from
eight
tentatively
identified
along
with
different
pathways
via
suspect
screening
by
high-resolution
mass
spectrometry.
Semiquantitative
results
indicated
that
derived
N-(1,3-dimethylbutyl)-N′-phenyl-p-phenylene-diamine
(6PPD)
predominant
leachates,
while
aryl
hydrolysis
quinone
main
pathways.
Field
on
urban
surface
samples
16
sites
Hong
Kong
revealed
occurrence
17
1
TP,
concentrations
ranging
13.9
2230
ng/L
(median
±
standard
deviation:
226
534
ng/L).
Sixteen
six
additionally
screening.
It
is
estimated
6PPD-quinone
seven
could
pose
medium
high
risk,
N-(1,3-dimethylbutyl)-N′-phenyl-p-quinonediimine,
a
frequently
detected
was
as
persistent-bioaccumulative-toxic
substance.
