Abstract
Land-applied
municipal
biosolids,
produced
from
wastewater
treatment
sludge,
contributes
to
microplastics
contamination
in
agroecosystems.
The
impacts
of
biosolids
on
microplastic
concentrations
agricultural
soil
have
been
previously
investigated,
however,
the
potential
for
transport
biosolid-amended
croplands
has
not
quantified.
In
this
study,
manure
and
were
applied
field
plots,
runoff
was
collected
following
natural
precipitation
events
bacterial
biofilm
grow
different
morphologies
investigated.
Higher
detected
plots
with
land-applied
biosolid
comparison
manure-amended
control
plots.
Fibers
fragments
most
frequently
plastic
runoff,
correlated
their
decreased
surface
roughness.
contribute
U.S.
waters
quantified
which
is
among
first
quantify
nonpoint
source
adjacent
production
areas.
Water Science & Technology,
Journal Year:
2023,
Volume and Issue:
88(1), P. 199 - 219
Published: June 14, 2023
Microplastics
(MPs)
cannot
be
completely
removed
from
water/wastewater
in
conventional
wastewater
treatment
plants
(WWTPs)
and
drinking
water
(DWTPs).
According
to
the
literature
analysis,
membrane
technologies,
one
of
advanced
are
most
effective
promising
technologies
for
MP
removal
wastewater.
In
this
paper,
firstly,
properties
MPs
commonly
present
WWTPs/DWTPs
efficiency
briefly
reviewed.
addition,
research
studies
on
by
microfiltration
(MF),
ultrafiltration
(UF),
nanofiltration
(NF),
reverse
osmosis
(RO),
bioreactors
(MBRs)
next
section,
filtration
is
compared
with
other
methods
used
water/wastewater,
advantages/disadvantages
discussed.
Moreover,
problem
fouling
during
potential
release
polymeric
structure
Finally,
based
literature,
current
status
deficiencies
identified,
recommendations
made
further
studies.
Journal of Hazardous Materials,
Journal Year:
2022,
Volume and Issue:
442, P. 130117 - 130117
Published: Oct. 2, 2022
Plastic
pollution
in
the
world's
oceans
is
ubiquitous
and
increasing.
The
environment
inundated
with
microplastics
(<
1
mm),
health
effects
of
these
less
conspicuous
pollutants
poorly
known.
In
addition,
there
now
evidence
that
macroplastics
can
release
form
shedding
or
digestive
fragmentation,
meaning
potential
for
macroplastic
exposure
to
induce
direct
indirect
pathology
through
microplastics.
Therefore,
an
urgent
need
data
from
wild
populations
on
relationship
between
macro-
microplastic
compounding
pathological
forms
plastics.
We
investigated
presence
impact
multiple
tissues
Flesh-footed
Shearwaters
Ardenna
carneipes,
a
species
ingests
considerable
quantities
plastics,
used
histopathological
techniques
measure
physiological
responses
inflammation
All
organs
examined
(kidney,
spleen,
proventriculus)
had
embedded
particles
this
correlated
exposure.
Considerable
tissue
damage
was
recorded,
including
significant
reduction
tubular
glands
rugae
proventriculus,
inflammation,
fibrosis,
loss
organ
structures
kidney
spleen.
This
indicates
directly
at
site
exposure,
while
be
mobilised
throughout
body
causing
widespread
pathology.
Collectively,
results
indicate
scope
severity
impacts
plastic
may
grossly
underestimated.
Journal of Hazardous Materials,
Journal Year:
2023,
Volume and Issue:
464, P. 133013 - 133013
Published: Nov. 16, 2023
Nanoplastics
are
emerging
environmental
contaminants,
but
their
presence
in
and
potable
water
remains
largely
understudied
due
to
the
absence
of
quantitative
analytical
methods.
In
this
study,
we
developed
validated
a
pretreatment
method
that
combines
hydrogen
peroxide
digestion
Amicon®
Stirred
Cell
ultrafiltration
(at
100
kDa,
approximately
10
nm)
with
subsequent
detection
by
pyrolysis
gas
chromatography-mass
spectrometry
(Pyr-GC/MS).
This
allows
for
simultaneous
identification
quantification
nine
selected
nanoplastic
types,
including
poly(ethylene
terephthalate)
(PET),
polyethylene
(PE),
polycarbonate
(PC),
polypropylene
(PP),
poly(methyl
methacrylate)
(PMMA),
polystyrene
(PS),
polyvinylchloride
(PVC),
nylon
6,
66,
samples
based
on
polymer-specific
mass
concentration.
Limits
ranged
from
0.01
0.44
µg/L,
demonstrating
method's
ability
quantitatively
detect
nanoplastics
samples.
Most
were
detected
at
concentrations
between
0.04
1.17
except
PC,
which
was
consistently
below
limit
(<0.44
µg/L).
The
prevalent
polymer
components
PE
(0.10
-
µg/L),
PET
(0.06
0.91
PP
(0.04
0.79
PS
0.53
µg/L)
nanoplastics.
presented
offers
an
accurate
means
identify,
quantify,
monitor
complex
It
fills
gaps
our
understanding
pollution
levels,
providing
valuable
methodology
crucial
reference
data
future
studies.
