Environment International,
Год журнала:
2024,
Номер
188, С. 108782 - 108782
Опубликована: Май 28, 2024
Snow
dumping
stations
can
be
a
hotspots
for
pollutants
to
water
resources.
However,
little
is
known
about
the
amount
of
microplastics
including
tyre
wear
particles
transported
this
way.
This
study
investigated
and
metals
in
snow
from
four
Riga,
Latvia,
remote
site
(Gauja
National
Park),
roof
top
Riga.
Microplastics
other
than
were
identified
with
Attenuated
Total
Reflection
Fourier
Transform
Infrared
(ATR-FTIR)
(>500
µm)
focal
plane
array
based
micro-Fourier
(FPA-µFTIR)
imaging
(10–500
µm),
by
Pyrolysis
Gas
Chromatography-Mass
Spectroscopy
(Py-GC–MS),
total
Inductively
Coupled
Plasma
Optical
Emission
(ICP-OES).
detected
FTIR
quantified
particle
counts
their
mass
estimated,
while
mass.
The
concentrations
varied
substantially,
highest
levels
urban
areas.
Microplastic
measured
ranged
between
26
2549
L−1
melted
corresponding
estimated
19–573
µg/L.
Tyre
not
at
two
reference
sites,
sites
held
44–3026
Metal
several
orders
magnitude
example
sodium
range
0.45–819.54
mg/L
cadmium
0.05–0.94
Correlating
microplastic
metal
content
showed
weak
moderate
correlation.
particles,
however,
correlated
strongly
many
metals.
that
hold
considerable
amounts
these
pollutants,
which
upon
melting
release
meltwater
aquatic
environment
could
impact
receiving
waters.
Environmental Advances,
Год журнала:
2023,
Номер
12, С. 100385 - 100385
Опубликована: Май 24, 2023
Tire
and
road
wear
particles
(TRWP)
consist
of
tread
rubber
elastomers
with
pavement
encrustations
generated
from
tire-road
friction.
Our
previous
work
utilized
density
separation
chemical
mapping
to
characterize
physical
properties
individual
TRWP.
The
current
research
extends
the
use
methods
urban
river
samples
including
sediment
Seine
River
(France).
TRWP
were
identified
using
a
weight
evidence
framework
separation,
optical
imaging,
scanning
electron
microscopy
coupled
energy
dispersive
X-ray
spectroscopy
(SEM/EDX)
mapping,
Fourier-transform
infrared
(FTIR)
spectroscopy.
collected
immediately
downstream
Rouen
area
(with
an
average
concentration
930
mg
TRWP/kg
sediment;
n
=
3)
subsequently
separated
demonstrated
size
133
µm
by
number
171
volume.
Sediment
second
location
(190
1)
was
showed
overlap
in
features
tire
bitumen/asphalt
FTIR
signatures
(operationally
defined
as
weathered
bitumen/TRWP).
Average
particle
for
bitumen/TRWP
250
981
volume,
respectively.
Pulverization
pre-treatment
sample
reduced
larger
agglomerates
97
116
A
quantitative
or
distribution
filtered
suspended
solids
(3300
solid)
could
not
be
determined
due
lack
enrichment
pre-
post-density
steps;
however,
all
27
160
Additionally,
biota
(bivalves)
without
digestion
future
discussed.
Taken
together,
our
single
analysis
methodologies
useful
determination
(including
bitumen
TRWP)
samples.
These
results
are
expected
help
advance
identification
characterization
potentially
other
microplastics
various
environmental
matrices.
Sustainability,
Год журнала:
2023,
Номер
15(17), С. 12815 - 12815
Опубликована: Авг. 24, 2023
Tire
and
road
wear
particles
(TRWPs)
are
generated
unintentionally
while
driving
vehicles.
The
TRWPs
move
to
various
environments
by
environmental
mechanical
action,
they
present
in
fresh
water,
river,
ocean
may
cause
problems
the
environment
human
health.
In
Korea,
number
of
registered
cars
is
increasing
year
year,
so
problem
will
become
serious.
this
study,
we
study
concentrations
from
roadsides
temperature
difference,
order
reduce
generation
TRWPs.
Dust
samples
were
collected
during
summer
winter
measure
amount
on
according
seasonal
changes.
75–150
µm
size,
which
corresponds
TRWP
separated
dust
using
sieves.
Additionally,
only
a
solution
dibromomethane
Trans-1,2-dichloroethylene.
accounted
for
<2%
roadsides,
their
increased
approximately
7.6–24.2%
more
than
winter.
Thermogravimetric
analysis
results
confirmed
that
tire
components
minerals
30%
70%
regardless
season,
respectively.
Environment International,
Год журнала:
2024,
Номер
188, С. 108782 - 108782
Опубликована: Май 28, 2024
Snow
dumping
stations
can
be
a
hotspots
for
pollutants
to
water
resources.
However,
little
is
known
about
the
amount
of
microplastics
including
tyre
wear
particles
transported
this
way.
This
study
investigated
and
metals
in
snow
from
four
Riga,
Latvia,
remote
site
(Gauja
National
Park),
roof
top
Riga.
Microplastics
other
than
were
identified
with
Attenuated
Total
Reflection
Fourier
Transform
Infrared
(ATR-FTIR)
(>500
µm)
focal
plane
array
based
micro-Fourier
(FPA-µFTIR)
imaging
(10–500
µm),
by
Pyrolysis
Gas
Chromatography-Mass
Spectroscopy
(Py-GC–MS),
total
Inductively
Coupled
Plasma
Optical
Emission
(ICP-OES).
detected
FTIR
quantified
particle
counts
their
mass
estimated,
while
mass.
The
concentrations
varied
substantially,
highest
levels
urban
areas.
Microplastic
measured
ranged
between
26
2549
L−1
melted
corresponding
estimated
19–573
µg/L.
Tyre
not
at
two
reference
sites,
sites
held
44–3026
Metal
several
orders
magnitude
example
sodium
range
0.45–819.54
mg/L
cadmium
0.05–0.94
Correlating
microplastic
metal
content
showed
weak
moderate
correlation.
particles,
however,
correlated
strongly
many
metals.
that
hold
considerable
amounts
these
pollutants,
which
upon
melting
release
meltwater
aquatic
environment
could
impact
receiving
waters.
