Eco-Environment & Health,
Год журнала:
2023,
Номер
2(4), С. 195 - 207
Опубликована: Авг. 21, 2023
Micro-
and
nano-plastics
(MNPs)
pollution
has
become
a
pressing
global
environmental
issue,
with
growing
concerns
regarding
its
impact
on
human
health.
However,
evidence
the
effects
of
MNPs
health
remains
limited.
This
paper
reviews
three
routes
exposure
to
MNPs,
which
include
ingestion,
inhalation,
dermal
contact.
It
further
discusses
potential
translocation
in
lungs,
intestines,
skin,
analyses
homeostasis
organ
systems,
provides
an
outlook
future
research
priorities
for
There
is
that
are
present
tissues
or
fluids.
Lab
studies,
including
Toxicological Sciences,
Год журнала:
2024,
Номер
199(1), С. 81 - 88
Опубликована: Фев. 17, 2024
The
exponential
increase
in
global
plastic
usage
has
led
to
the
emergence
of
nano-
and
microplastic
(NMP)
pollution
as
a
pressing
environmental
issue
due
its
implications
for
human
other
mammalian
health.
We
have
developed
methodologies
extract
solid
materials
from
tissue
samples
by
saponification
ultracentrifugation,
allowing
highly
specific
quantitative
analysis
plastics
pyrolysis-gas
chromatography
mass
spectrometry
(Py-GC-MS).
As
benchmark,
placenta
were
analyzed
using
fluorescence
microscopy
automated
particle
count,
which
demonstrated
presence
>1-micron
particles
fibers,
but
not
nano-sized
particles.
Analyses
(n
=
10)
attenuated
total
reflectance-Fourier
transform
infrared
spectroscopy
indicated
rayon,
polystyrene,
polyethylene,
unclassified
By
contrast,
among
62
samples,
Py-GC-MS
revealed
that
microplastics
present
all
participants'
placentae,
with
concentrations
ranging
widely
6.5
685
µg
NMPs
per
gram
placental
tissue,
averaging
126.8
±
147.5
µg/g
(mean±SD).
Polyethylene
was
most
prevalent
polymer,
accounting
54%
consistently
found
nearly
(mean
68.8
93.2
placenta).
Polyvinyl
chloride
nylon
each
represented
approximately
10%
weight,
remaining
26%
composition
9
polymers.
Together,
these
data
demonstrate
advancements
unbiased
resolution
applied
identification
quantification
NMP
species
at
maternal-fetal
interface.
This
method,
paired
clinical
metadata,
will
be
pivotal
evaluating
potential
impacts
on
adverse
pregnancy
outcomes.
Frontiers in Endocrinology,
Год журнала:
2024,
Номер
14
Опубликована: Янв. 4, 2024
Plastics
found
in
our
everyday
environment
are
becoming
an
increasing
concern
for
individual
and
population-level
health,
the
extent
of
exposure
potential
toxic
effects
these
contaminants
on
numerous
human
organ
systems
clear.
Microplastics
(MPs),
tiny
plastic
particles,
appear
to
have
many
same
biological
as
their
precursors
compounded
effect
accumulation
different
organs.
Recently,
microplastic
was
observed
placenta,
raising
important
questions
related
health
pregnancies
offspring.
These
concerns
particularly
heightened
considering
developmental
origins
disease
(DOHaD)
framework,
which
postulates
that
utero
can
programme
lifelong
The
current
review
examines
state
knowledge
this
topic
highlights
avenues
future
investigation.
Environmental Pollution,
Год журнала:
2025,
Номер
368, С. 125722 - 125722
Опубликована: Янв. 17, 2025
Microplastics
(MPs)
are
ubiquitous
in
river
and
freshwater
ecosystems.
However,
the
hydraulic
hydrological
mechanisms
that
regulate
activation
emissions
of
MPs
from
both
land
surface
subsurface
into
rivers
not
well
understood.
This
study
aims
to
quantify
instream
MP
concentration
load
a
remote
headwater
catchment
(Taff
Bargoed,
Wales
UK),
which
drains
UK's
largest
opencast
coal
mine
(Ffos-y-fran),
over
two-year
period.
Small
fibers
(<
1
mm)
composed
acrylic
polyester
dominated
sampled
Taff
while
less
commonly
observed
fragments
were
mostly
polysulfone.
River
concentrations
ranged
0.27
-
28.87
MP/m³
(average:
14.6
±
10.31
MP/m³),
one
order
magnitude
0.08
3.04
MP/s
(average:1.42
0.81
MP/s).
Statistically
significant
relationships
found
between
concentration,
number
dry
weather
hours
discharge,
indicated
rainfall-runoff
induced,
source
limited,
dilution
effects
on
concentration.
A
negligible
relationship
discharge
was
observed,
suggests
variability
independent
flow
conditions,
hours,
Bargoed.
Significant
positive
total
suspended
solids
also
indicating
this
may
provide
useful
proxy
for
estimating
variation
No
longitudinal
2
km
reach
where
differences
drainage
area
negligible,
however,
increased
by
factor
4
downstream
an
inflowing
tributary,
sourced
Ffos-y-fran
mine.
Overall,
results
evidence
mining
activities
can
contribute
rural
rivers,
with
their
contribution
being
regulated
processes
catchment.
