Microplastics
are
found
in
a
wide
range
of
ecosystems,
from
the
Arctic
to
deep
ocean.
However,
there
is
no
data
on
their
presence
terrestrial
mammals
that
inhabit
Selva
Maya.
The
aim
this
study
detect
MPs
feces
Baird's
tapir
(Tapirus
bairdii)
region
Calakmul,
located
Yucatan
Peninsula,
Mexico.
We
analyzed
129
fecal
samples
collected
during
2017
and
2018,
obtaining
57
72
rainy
dry
seasons
respectively.
Sixty-eight
percent
contained
743
with
mean
19.31
±
28.13
MPs/kg
both
years.
An
inter-annual
variation
average
abundance
microplastic
was
observed
two-year
period
(2017-2018),
72%
increase
these
plastic
particles
feces.
Fourteen
polymers
were
identified,
ethylene
vinyl
acetate
(EVA),
polypropylene
(PP)
polyester
(PES)
being
most
abundant
Although
effects
health
tapirs
not
known,
cause
for
concern.
There
an
urgent
need
implementation
appropriate
waste
management
programs
communities
Maya
diminish
consumption
species
including
humans
where
they
pose
significant
risk
health.
Emerging contaminants,
Journal Year:
2024,
Volume and Issue:
10(3), P. 100383 - 100383
Published: June 21, 2024
Microplastics
(MPs)
(<
5
mm)
are
a
growing
environmental
problem
and
have
garnered
significant
global
interest
by
scientists
policy
makers.
Coastal
ecosystems
vulnerable
to
MP
pollution,
assessing
their
sources,
fate,
transport
in
the
environment
is
imperative
for
marine
ecosystem
health.
Data
sediment
still
limited,
particularly
Pearl
River
Estuary
(PRE)
China.
Here,
we
assessed
abundance,
characteristics,
risks
of
MPs
sediments
from
PRE.
abundance
ranged
2.05
×
103
items
·kg-1
7.75
(dry
weight),
white
black
were
dominant
colors.
The
majority
(>
64.12%)
detected
<0.85mm
primarily
consisted
pellets
(36.84%)
fragments
(29.65%).
Three
polymer
types
identified
Fourier
Transform
Infrared
Spectroscopy
(FT-IR)
including
polyethylene
(PE),
terephthalate
(PET),
polypropylene
(PP).
Meanwhile,
polyurethane
(PU)
sponge
was
reported
first
time
this
study
area.
Observations
surface
morphology
typical
using
Scanning
Electron
Microscopy
(SEM)
showed
that
all
exhibited
varying
degrees
erosion,
characterized
cracks,
folds,
bumpy
structures.
Furthermore,
different
concentrations
heavy
metal
elements
found
on
surfaces
some
MPs,
potentially
adsorbed
surrounding
environment.
Based
type
quantity
polymers
identified,
classified
risk
contamination
PRE
as
category
III,
indicating
severe
contamination.
Results
investigation
may
serve
an
effective
model
other
estuaries
facing
similar
pollution
regimes
provides
valuable
information
assessment.
Environmental Pollution,
Journal Year:
2025,
Volume and Issue:
unknown, P. 126118 - 126118
Published: March 1, 2025
The
co-occurrence
of
pesticides,
pharmaceuticals,
and
MPs
has
resulted
in
combined
toxicity
high
risks
to
ecosystems
human
health.
However,
understanding
on
the
interactions
among
co-occurring
pollutants
soils
remains
limited.
This
study
focused
adsorption
behaviour
a
pesticide
mixture
(chlorpyrifos
(CPF),
pendimethalin
(PDM)
pyraclostrobin
(PCS))
three
(sandy
soil
(S1),
loamy
(S2),
silt
(S3))
examine
absorption
pesticides
presence
pharmaceutical
compound
albendazole
(ALB)
starch-based
microplastics
(MPs).
results
showed
that
ALB
significantly
decreased
(p<
0.05)
CPF,
PDM,
PCS
by
29%-41%
S1.
CPF
(+20%)
(+101%)
S2
were
enhanced
but
PDM
(-22%)
was
inhibited
ALB.
also
promoted
S3
39%
120%,
respectively,
did
not
change
adsorption.
In
soil-MP
matrices,
reduced
(-25%),
(-26%),
(-21%)
S1-MP
matrix,
no
significant
S3-MP
matrices
observed.
Moreover,
increased
120-730%,
11-24%
soils.
Further,
regardless
presence,
correlation
analysis
suggested
Kd
positive
correlations
0.01)
organic
matter,
specific
surface
area,
clay
content
without
MP-contamination,
while
between
properties
observed
soil-MPs
matrices.
indicates
could
alter
thereby
affect
their
bioavailability
mobility
ecosystem.
Further
is
urgently
needed
assess
ecotoxicity
multi-contaminants,
as
well
potential
transport
other
environmental
compartments.
