Toxics,
Journal Year:
2024,
Volume and Issue:
12(7), P. 448 - 448
Published: June 21, 2024
Bisphenol
S
(BPS),
an
environmental
endocrine
disruptor,
has
been
identified
in
global
matrices.
Nevertheless,
limited
studies
have
investigated
the
presence
of
chlorinated
analogues
BPS
(Clx-BPSs)
with
potential
estrogenic
activities
In
this
study,
occurrence
and
five
types
Clx-BPSs
was
characterized
indoor
dust
(n
=
178)
from
Hangzhou
City.
measurable
94%
samples,
average
level
0.63
μg/g
(<LD–2.4
μg/g).
Among
detected
homologues,
Cl1-BPS
(2-chloro-4-(4-hydroxyphenyl)sulfonylphenol;
detection
frequency
70%),
Cl2-BPS-2
(2-chloro-4-(3-chloro-4-hydroxyphenyl)sulfonylphenol;
65%),
Cl2-BPS-1
(2,6-dichloro-4-(4-hydroxyphenyl)sulfonylphenol;
61%)
were
among
frequently
Clx-BPSs.
most
abundant
analyte,
0.048
(<LD—0.24
μg/g),
followed
by
(0.035
μg/g,
<LD—0.14
(0.031
<LD—0.13
Significant
correlations
concentrations
observed
between
(p
<
0.01),
as
well
0.01).
Moreover,
estimation
made
for
total
daily
intake
via
ingestion
infants,
children,
adults.
This
study
presents
first
evidence
existence
dust,
concurrently
highlighting
necessity
to
address
their
human
exposure
risks.
Environmental Science & Technology,
Journal Year:
2024,
Volume and Issue:
58(42), P. 18940 - 18949
Published: Oct. 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.
Toxics,
Journal Year:
2024,
Volume and Issue:
12(7), P. 448 - 448
Published: June 21, 2024
Bisphenol
S
(BPS),
an
environmental
endocrine
disruptor,
has
been
identified
in
global
matrices.
Nevertheless,
limited
studies
have
investigated
the
presence
of
chlorinated
analogues
BPS
(Clx-BPSs)
with
potential
estrogenic
activities
In
this
study,
occurrence
and
five
types
Clx-BPSs
was
characterized
indoor
dust
(n
=
178)
from
Hangzhou
City.
measurable
94%
samples,
average
level
0.63
μg/g
(<LD–2.4
μg/g).
Among
detected
homologues,
Cl1-BPS
(2-chloro-4-(4-hydroxyphenyl)sulfonylphenol;
detection
frequency
70%),
Cl2-BPS-2
(2-chloro-4-(3-chloro-4-hydroxyphenyl)sulfonylphenol;
65%),
Cl2-BPS-1
(2,6-dichloro-4-(4-hydroxyphenyl)sulfonylphenol;
61%)
were
among
frequently
Clx-BPSs.
most
abundant
analyte,
0.048
(<LD—0.24
μg/g),
followed
by
(0.035
μg/g,
<LD—0.14
(0.031
<LD—0.13
Significant
correlations
concentrations
observed
between
(p
<
0.01),
as
well
0.01).
Moreover,
estimation
made
for
total
daily
intake
via
ingestion
infants,
children,
adults.
This
study
presents
first
evidence
existence
dust,
concurrently
highlighting
necessity
to
address
their
human
exposure
risks.
