Soil and Sediment Contamination An International Journal,
Journal Year:
2024,
Volume and Issue:
33(8), P. 1549 - 1574
Published: Feb. 19, 2024
This
research
examined
heavy
metals
distribution
and
potential
environmental
impact
in
seven
locations
along
the
Bhavnagar
coast
Gujarat,
India.
The
study
used
several
analyses,
including
hierarchical
cluster
analysis
(HCA),
principal
component
(PCA),
correlation
to
investigate
harmful
present
area.
To
evaluate
possible
risk
of
Cd,
Pb,
Cr,
Zn,
Co,
Cu,
Ni,
Mn,
Fe
marine
environment,
pollution
indices
such
as
contamination
factors
(Cf),
enrichment
factor
(Ef),
geo-accumulation
index
(Igeo),
ecological
(Er),
(RI)
sediment
quality
guidelines
(SQGs)
applied.
Based
on
results,
mean
concentration
was
ranked
following
order
(mg/kg):
(561.4)
>
Mn
(58.9)
Cr
(42)
Zn
(12.5)
Pb
(8.2)
Ni
(7)
Cu
(5.2)
Co
(2.7)
Cd
(.3).
Compared
pre-monsoon
post-monsoon
seasons,
results
showed
a
diluting
metal
concentrations
during
monsoon
season.
spatial
indicated
that
geogenic
source
anthropogenic
were
primary
contributors
studied
region.
Principal
suggests
may
have
come
from
shipbreaking
activities,
municipal
discharge
industrial
operations.
Cf,
Igeo,
Ef
demonstrated
no
moderate
pollution,
with
maximum
contribution
coastal
poses
minimal
for
all
investigated.
Shipbreaking,
urban
runoff,
salt-marine,
agricultural
runoff
release
toxic
into
environment.
In
conclusion,
information
obtained
this
geochemical
characterization
could
be
valuable
policymakers
stakeholders
developing
effective
management
measures
region,
Gulf
Khambhat,
Processes,
Journal Year:
2024,
Volume and Issue:
12(2), P. 311 - 311
Published: Feb. 1, 2024
Intertidal
sediments
are
rich
in
biological
resources,
which
important
for
material
circulation
and
energy
exchange.
Meanwhile,
these
areas
can
be
treated
as
sinks
well
sources
of
coastal
heavy
metal
pollutants.
Due
to
the
influence
tide,
intertidal
a
state
periodic
flooding
exposure,
environmental
factors
such
dissolved
oxygen,
salinity
overlying
water
pressure
changeable.
Heavy
metals
prone
migration
transformation
with
dynamic
effects
tidal
changes
environment
factors,
increase
bioavailability
metals.
In
this
review,
characteristics
distribution
described;
behavior
its
influencing
under
conditions
analyzed;
mechanisms
metal’s
zone
summarized.
Moreover,
bioaccumulation
by
organisms
remediation
techniques
discussed.
Therefore,
review
systematically
summarizes
states
existence,
transport
mechanisms,
fate
sediment,
fills
research
gap
cycling
zone,
provides
theoretical
basis
control
pollution.
Frontiers in Environmental Science,
Journal Year:
2024,
Volume and Issue:
12
Published: Oct. 21, 2024
Sediment
pollution
from
potentially
hazardous
elements
(PHE)
generated
by
human
activity
has
grown
into
a
worldwide
problem.
In
this
regard,
for
the
first
time,
surface
sediment
samples
were
obtained
six
points
along
Shahid
Rajaee
Reservoir
investigation.
Elements
concentrations
(Cu,
Cr,
Co,
Mn,
Fe,
Pb,
Ni,
and
Zn)
assessed
using
ICP-MS.
Based
on
individual
indices
(geoaccumulation
index,
contamination
factor),
all
at
sample
sites
found
to
be
low
in
contamination,
except
Pb
Zn
(at
1
2).
The
combined
effect
of
PHEs
did
not
show
considerable
concern,
according
synergistic
indices.
health
risk
assessment
revealed
that
recreational
receptors
unlikely
face
non-carcinogenic
or
carcinogenic
hazards
as
consequence
exposure
sediments
with
unintentional
ingesting
contact
skin.
Tessier
technique
demonstrated
mostly
connected
oxidizable
fraction.
According
statistical
study,
while
Cu,
Mn
lithogenic
sources,
came
natural
well
human-made
sources.
Ecological Indicators,
Journal Year:
2023,
Volume and Issue:
158, P. 111422 - 111422
Published: Dec. 20, 2023
Lake
sediments
serve
as
a
sink
for
trace
elements
and
provide
record
of
watershed
changes
resulting
from
anthropogenic
activities
natural
processes.
In
this
study,
eight
in
the
Aha,
an
urban
lake
Guiyang
City,
Southwest
China,
were
investigated
to
reveal
effects
historical
coal
mining
rapid
urbanization
watershed.
Results
showed
that
median
contents
measured
order
Zn
(220.00
mg/kg)
>
Ni
(98.16
Cr
(70.26
Cu
(66.20
As
(58.14
Co
(41.66
Pb
(28.33
Cd
(1.39
mg/kg).
Except
Pb,
concentrations
Cd,
As,
Zn,
Ni,
Co,
4.64,
2.33,
2.00,
1.92,
1.81,
1.09
times
higher
than
regional
background
values
respectively.
Trace
element
center
significantly
rest
sediment
cores,
relatively
stable
hydrodynamic
processes
region.
Vertical
variation
indicated
fluctuations
intensity
tributaries
effectively
tracked
by
variations
levels
middle
layer
Youyu
River
Baiyan
estuaries.
The
elevated
surface
Jinzhong
estuary
reflected
basin
over
past
20
years.
PMF
analysis
demonstrated
mixture
activities,
Cu,
originated
mining.
This
study
provides
important
information
comprehending
small-scale
lakes
environmental
changes.
ISPRS International Journal of Geo-Information,
Journal Year:
2024,
Volume and Issue:
13(6), P. 196 - 196
Published: June 12, 2024
Transitional
waters
(TWs)
are
relevant
ecological
and
economical
ecosystems
that
include
estuaries,
deltas,
bays,
wetlands,
marshes,
coastal
lakes,
lagoons
play
a
central
role
in
providing
food,
protecting
environments,
regulating
nutrients.
However,
human
activities
such
as
industrialization,
urbanization,
tourism,
agriculture
threatening
these
ecosystems,
which
results
contamination
habitat
degradation.
Therefore,
it
is
essential
to
evaluate
TW
develop
effective
management
protection
strategies.
This
study
analyses
the
application
of
geospatial
technologies
(GTS)
for
monitoring
predicting
contaminant
distribution
TW.
Cartography,
interpolation,
complex
spatial
methods,
remote
sensing
were
applied
assess
profiles
by
heavy
metals,
persistent
organic
compounds,
analyze
indices
or
some
physicochemical
water
parameters.
It
concluded
integrating
environmental
demographic
data
with
GTS
would
help
identify
critical
points
promote
ecosystem
resilience
ensure
long-term
health
well-being.
review
comprehensively
analyzes
indicators,
used
transitional
conjunction
GTS.
offers
valuable
foundation
planning
future
research
on
pollution
types
other
similar
bodies
worldwide.
Water,
Journal Year:
2024,
Volume and Issue:
16(12), P. 1692 - 1692
Published: June 13, 2024
Systematic
and
scientific
assessments
on
heavy
metal
pollution
are
greatly
important
to
protecting
the
coastal
eco-environment.
In
this
paper,
spatial
distribution,
degree,
ecological
toxicity
possible
sources
of
eight
elements
collected
from
126
marine
715
terrestrial
surface
sediments
surrounding
Dingzi
Bay
were
analyzed
by
obtaining
concentration
measurements.
The
results
revealed
that
concentrations
metals
followed
a
pattern:
inner
bay
>
areas
outer
bay.
Cr,
Ni,
Cu,
Zn,
Cd,
Pb,
Hg
found
accumulate
in
fine
particles
(<0.063
mm),
while
As
showed
an
association
with
specific
(>0.25
mm
<0.016
mm).
Spatial
patterns
varied
non-polluted
low
levels
overall,
localized
contamination
individual
elements.
addition
natural
sources,
four
types
anthropogenic
identified
settings.
Agricultural
pollution,
characterized
predominance,
exerted
profound
effects
both
environments.
Industrial
featuring
dominance,
was
widespread
land
environment
predominantly
linked
atmospheric
deposition.
Traffic
marked
elevated
Pb
concentrated
around
factories
densely
populated
areas.
Maritime
comprising
Hg,
primarily
occurred
nearshore
outside
findings
study
provide
data
authorities
charge
sustainable
zone
management
South
Yellow
Sea.
