Journal of Hazardous Materials,
Год журнала:
2024,
Номер
481, С. 136495 - 136495
Опубликована: Ноя. 13, 2024
Tire
and
road
wear
particles
are
a
major
source
of
microplastics
to
urban
stormwater.
They
composed
hetero-aggregates
abraded
tire
pavement
that
difficult
distinguish.
While
is
known
microplastics,
little
on
the
contribution
wear.
This
two-year
field
study
with
complementary
lab
testing
evaluates
effects
degradation
microplastic
generation
in
stormwater
from
different
types:
asphalt,
concrete,
recycled
rubber
pavers.
Pavement
specimens
each
site
were
collected
underwent
testing.
We
directly
demonstrated
separate
showed
released
most
testing,
suggesting
formulation
such
novel
recycled-tire
pavers
must
undergo
thorough
before
wide
application.
The
asphalt
was
susceptible
rutting
field,
including
large
proportion
particles.
Both
land-use
surface
characteristics
influenced
generation.
These
results
demonstrate
need
consider
during
material
selection
mitigate
spread
nearby
environments.
Environmental Toxicology and Chemistry,
Год журнала:
2025,
Номер
44(1), С. 26 - 44
Опубликована: Янв. 1, 2025
Microplastics
are
widespread
pollutants.
generated
from
the
wear
and
tear
of
paints
coatings
have
recently
been
modeled
to
be
a
large
source
microplastics
environment.
Yet,
studies
focused
on
broadly
frequently
overlook
paint
microplastics.
In
this
article,
we
systematically
reviewed
primary
literature
(turning
up
53
relevant
articles)
microplastic
sources,
identification
methods,
environmental
concentrations,
toxicity
model
organisms.
Examples
sources
include
buildings
murals,
crafts
hobbies,
cars
roads,
marine
boats
structures,
industrial
systems
like
pipes,
sewers,
other
infrastructure.
Paint
quantified
in
several
samples
Europe
and,
lesser
extent,
East
Asia.
Reported
concentrations
290,000
particles
per
kilogram
sediments,
with
greatest
concentration
reported
near
graffiti
wall.
Out
testing
microplastics,
there
68
tested
effects
total
across
all
endpoints
organisms
17
lethal
50%
doses
(ranging
0.001
20
g/L).
Of
effects,
45
observed
endpoint
values
treatment
were
significantly
different
control
(66%)-most
which
tests
using
antifouling
paints.
Overall,
number
is
small,
limiting
holistic
understanding
Based
our
synthesis
state
science
suggest
research
agenda
moving
forward
informed
by
gaps.
The Science of The Total Environment,
Год журнала:
2025,
Номер
980, С. 179527 - 179527
Опубликована: Апрель 29, 2025
Urban
runoff
is
an
important
conveyor
of
microplastics
(MPs)
and
tyre
wear
particles
(TWP)
to
receiving
waters.
However,
knowledge
contributions
by
surfaces
within
land
use
type/activities
currently
limited.
To
address
this
gap,
samples
were
collected
simultaneously
during
three
rainfall
events
in
October
November
2020
at
locations
Luleå,
Sweden,
with
different
urban
(parking
lot,
road
roof).
The
occurrence
MPs
(by
number
estimated
mass)
TWP
(mass)
determined
using
μ-FTIR
Pyr-GC/MS,
respectively.
found
all
sites
events,
large
variations
between
sites.
highest
concentrations
(number)
followed
parking
lot
roof
runoff.
mass
did
not
follow
the
same
pattern
generally
highlighting
importance
reporting
data
as
both
particle
numbers
derive
a
complete
overview
behaviour.
Polypropylene,
polyethylene,
polyester
accounted,
on
average,
for
99
%
MP
polymers
number)
common
sources,
including
traffic
(vehicle
tear)
littering.
<75
μm
fraction
contributed
>50
total
runoff,
>58
>
90
