RISET Geologi dan Pertambangan,
Journal Year:
2023,
Volume and Issue:
33(2), P. 123 - 123
Published: Dec. 30, 2023
Sediments
are
known
to
accumulate
pollutants
from
terrestrial
and
coastal
waters,
can
be
used
as
an
indicator
monitor
metal
pollution
in
the
biosphere
effects
of
anthropogenic
events
environment.
Eight
samples
reef
surface
sediments
were
collected
north
east
coasts
Panjang
Island.
Island,
located
Banten
Bay,
was
chosen
for
this
study
because
its
proximity
many
industrial
areas.
Nevertheless,
island
supports
a
natural
ecosystem,
including
coral
reefs,
seagrass,
mangroves.
The
analyzed
grainsize,
component
analysis,
Pb
concentrationusing
AAS
flame
method.
result
indicated
concentration
grain-supported
sediment
Island
is
varied.
detected
concentrations
0-28.68
mg/kg
dry
weight.
that
different
value
mainly
controlled
by
grainsize.
highest
accumulation
occurs
areas
with
very
fine
which
have
better
adsorption
capabilities
heavy
metals.
This
also
suggests
medium
sand
fraction
may
values.
that,
according
classification
ANZECC/ARMCANZ,
all
area
low
risk
toxicant
level.
Additionally,
SQG-Q
(Sediment
Quality
Guidelines)
quotient
analysis
indicates
posed
low-moderate
impact
adverse
biological
effect.
Earth-Science Reviews,
Journal Year:
2024,
Volume and Issue:
254, P. 104822 - 104822
Published: May 29, 2024
Source-to-sink
geoscientific
domain
and
environmental
plastic
cycle
studies
are
two
major
scientific
worlds
starting
to
interact,
taking
benefit
from
each
other.
To
advance
in
our
understanding
of
the
sharing
benefits
between
interconnecting
research
communities,
we
firstly
carry
out
a
review
sedimentology,
sources,
sinks,
transport
dynamic
pathways
microplastics
along
entire
source-to-sink
(S2S)
profile.
The
main
peculiarities
for
numerous
distributed
sources
across
environment,
as
well
importance
physical
properties
shape
factors.
Then,
propose
mass
concentration
S2S
profile
discuss
influence
sedimentation
rate
on
microplastic
accumulation
identify
intermediate
reservoir
final
fates.
Deep
sea
deposits,
including
turbidite
systems
potentially
hotspots
that
poorly
studied,
deserving
much
more
attention
scale
balance
studies.
This
finally
highlights
areas
synergies
communities
guide
future
interdisciplinary
research.
Most
these
issues
will
rely
multiplying
measurements
all
matrices
environments
based
standard
technology
generate
homogenized
large
database
microplastics.
Environmental Science Nano,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
Our
approach
lowers
the
size
of
nanosized
plastics
detectable
via
micro-Raman
spectroscopy,
exploiting
resonance
Raman
signal
from
blue-pigmented,
highly
abundant
microplastics.
Frontiers in Marine Science,
Journal Year:
2023,
Volume and Issue:
10
Published: Nov. 8, 2023
Plastics
embedded
in
tar
residues
encrusting
rocky
coastlines
were
discovered
on
the
Canary
Islands
(NE
Atlantic
Ocean)
and
termed
“plastitar”
2022.
As
plastic
pollution
is
widespread
marine
pelagic
benthic
habitats,
it
was
predicted
that
this
novel
form
could
occur
other
coasts
as
well.
To
test
prediction,
we
reviewed
literature
examined
our
regions
for
plastitar.
We
found
eight
studies
which
reported
under
several
descriptions
terms
(including
“tar-bonded
beach-conglomerate
tarcrete”,
“plasto-tar
crust”,
“plasto-tarball”
“plastitar”)
India
(Arabian
Sea),
Bermuda
(Saragossa
Bahamas
(NW
Ocean),
United
Arabic
Emirates
Gulf
of
Oman),
Malta
(central
Mediterranean
Croatia
(Adriatic
Italy
Ligurian
Cabrera
island,
Menorca
island
Sardinia
(western
Sea)
Indonesia
(Java
from
1973
to
2023.
also
detected
plastitar
during
field
surveys
Japan
(Sea
Japan)
Mallorca
2022
2023,
respectively.
Using
Fourier-transform
infrared
spectroscopy
(FTIR),
verified
contained
plastics
polyethylene
(PE).
Pyrolysis-gas
chromatography-mass
spectrometry
(PY-GC/MS)
indicated
derived
crude
oil.
Furthermore,
plotting
all
these
records
a
global
map
revealed
almost
findings
made
along
major
oil
transportation
routes
across
northern
hemisphere
suggesting
resulted
tanker-released
oils.
Overall,
study
shows,
first
time,
has
been
long
overlooked
coastal
systems
worldwide.
Frontiers in Environmental Science,
Journal Year:
2024,
Volume and Issue:
12
Published: July 25, 2024
Plastitar
has
recently
been
reported
in
marine
environments
worldwide.
is
plastic
embedded
crude
oil
residues.
This
form,
i.e.,
geochemically
or
-physically
altered
plastic,
proposed
to
derive
from
water
motion
driven
plastic-crude
oil-interactions
pelagic
and
benthic
habitats.
In
this
study,
we
introduce
bitumen-based
plastitar:
a
novel
form
variant
that
detected
supra-intertidal
marina
walls,
riverbank
cobblestone
pavements,
roads.
Fourier-transform
infrared
(FTIR)
spectroscopy
identified
fragments,
bottle
cap
liners,
paint
chips,
had
found
firmly
black
joint
sealant,
as
polypropylene,
polyethylene,
polyester
epoxide,
alkyd
varnish.
Field
observations,
pyrolysis-gas
chromatography/mass
(PY-GC/MS)
FTIR
indicated
the
sealant
consisted
of
bitumen-mineral-mixture
commonly
used
adhesive
filler
hydraulic
engineering
road
construction.
Brittle
fragments
showed
signs
melting
such
bubbles,
holes,
melt
inclusions
and,
therefore,
constituted
pyroplastics,
incompletely
combusted
melted
plastics
with
rock-like
appearances.
Bottle
caps
chips
were
deeply
pressed
into
sealant.
These
findings
indicate
plastitar
formed
by
being
(un)intentionally
included
heated
liquid
bitumen
hardened
bitumen.
Our
field
inspections
degraded
up
66%
over
608
days
releasing
microplastics
(plastics
<
0.5
cm)
environment.
Overall,
our
study
shows,
for
first
time,
variants
can
materials
other
than
residues
terrestrial
environments.
We
hope
will
increase
awareness
these
fixation
processes,
agglomeration
through
heat
pressure,
which
could
help
prevent
formation
during
future
construction
works.
