Environmental Science & Technology,
Journal Year:
2023,
Volume and Issue:
57(34), P. 12829 - 12837
Published: Aug. 14, 2023
Stormwater
has
been
identified
as
a
pathway
for
microplastics
(MPs),
including
tire
wear
particles
(TWPs),
into
aquatic
habitats.
Our
knowledge
of
the
abundance
MPs
in
urban
stormwater
and
potential
strategies
to
control
is
still
limited.
In
this
study,
samples
were
collected
from
microlitter
capture
devices
(inlet
outlet)
during
rain
events.
Sediment
material
captured
device
inlet
outlet
constructed
wetland.
MP
(>25
μm)
concentration
varied
across
different
locations
ranging
3.8
59
MPs/L
raw
1.8
32
treated
stormwater,
demonstrating
decrease
after
passage
through
(35-88%
removal).
TWPs
comprised
∼95%
all
particles,
followed
by
polypropylene
(PP)
poly(ethylene
terephthalate)
(PET).
The
ranged
2.5
58
TWPs/L
1450
4740
TWPs/kg
sediment,
respectively.
A
higher
was
found
sediment
at
wetland
compared
outlet,
indicating
role
wetlands
removing
stormwater.
These
findings
suggest
that
both
can
mitigate
transport
receiving
waterways.
Resources Conservation and Recycling,
Journal Year:
2024,
Volume and Issue:
205, P. 107578 - 107578
Published: April 8, 2024
Freshwater
ecosystems
are
viewed
as
a
key
medium
for
the
transport
of
land-based
plastics
into
oceans.
Microplastic
(MP)
particles
in
freshwater
environments
demonstrate
high
persistence
and
an
extensive
range
size
shape
distributions,
which
make
their
mobility,
distribution,
fate
vary
distinctly
depending
on
prevailing
environmental
conditions.
The
inherent
physical
properties
different
plastic
polymers
constantly
evolving
at
specific
reaction
rates
due
to
complex
weathering
processes
environment.
This
continuously
alters
underlying
mechanisms
governing
MP
dynamics
further
complicates
ultimate
natural
aquatic
systems.
paper
conducts
comprehensive
review
dynamic
behaviour
MPs
ecosystems,
focusing
investigating
settling,
aggregation,
retention,
suspension
from
source
sink.
We
provide
in-depth
overview
theoretical
foundations
ambient
flows
influential
factors
(i.e.
size,
density,
shape,
composition).
Our
findings
highlight
intricate
interplays
between
behaviours
local
hydrodynamics
water
chemistry,
lead
continuous
evolution
physicochemical
(e.g.,
surface
charge)
through
interactions
with
suspended
solids,
organic
matter,
microorganisms
under
light
wind
exposure.
poses
significant
challenges
predicting
fate.
Gap
analysis
highlights
discrepancy
current
models
based
controlled
laboratory
conditions
environments,
signifying
need
across
wide
(e.g.
simulating
flow
patterns
solution
chemistries
real
bodies).
Further
research
is
needed
expand
field
studies
correlate
environment
abundance
conduct
mesoscale
experiments
that
accurately
reflect
effects
behaviours.
Integrating
detailed
numerical
modelling
tools
essential
understanding
among
various
overall
impact
facilitates
robust
reliable
risk
assessment
control
pollution
management.
