Water,
Journal Year:
2024,
Volume and Issue:
16(11), P. 1573 - 1573
Published: May 30, 2024
Heavy
metals
play
a
crucial
role
in
the
environment
due
to
their
toxicity,
persistence,
and
bioaccumulation
ability,
which
can
lead
severe
ecological
health
risks.
This
study
aimed
investigate
impact
of
urbanization
agricultural
practices
on
heavy
metal
content
sediments
Bug
River
catchment.
To
this
end,
96
surface
sediment
samples
were
collected
from
various
points
catchment,
including
urban,
agricultural,
forested
areas.
The
for
laboratory
analysis
July
2018,
2019,
2020
Polish
part
watershed.
(Zn,
Pb,
Cr,
Ni,
Cu,
Fe,
Mn,
Cd)
concentrations
determined
using
atomic
absorption
spectroscopy
(AAS).
geoaccumulation
index
(Igeo),
contamination
factor
(CF),
pollution
load
(PLI)
used
assess
degree
contamination.
results
indicate
higher
urban
sediments,
where
cadmium
reached
up
2.5
mg/kg,
compared
areas,
significantly
lower.
average
Igeo
value
was
0.24
areas
0.15
suggesting
predominance
anthropogenic
influences
over
natural
sources.
highest
PLI
values
found
reaching
maximum
0.33,
indicating
levels.
Statistical
revealed
that
emissions
activities
influenced
presence
these
sediments.
study’s
conclusions
emphasize
effective
river
water
quality
management
requires
continuous
monitoring
an
understanding
contribute
better
interactions
between
human
quality,
planning
protection
remediation
strategies.
Additionally,
provides
critical
insights
into
optimizing
strategies
developing
methods,
serving
local
regional
policymakers
protective
actions.
Human and Ecological Risk Assessment An International Journal,
Journal Year:
2018,
Volume and Issue:
25(8), P. 1953 - 1967
Published: July 3, 2018
This
study
identified
the
spatial
distributions,
sources,
and
ecological
risks
of
eight
heavy
metals
in
southern
coast
Laizhou
Bay,
eastern
China.
For
this
purpose,
a
total
111
topsoil
(0∼20
cm)
samples
were
collected
from,
analyzed
for
(Co,
Cr,
Cu,
Hg,
Mn,
Ni,
Pb,
Zn).
The
average
concentrations
Zn
higher
than
background
values
soils
originating
from
coastal
sediment
Shandong
Province,
indicating
obvious
accumulations
these
surface
soils.
Co,
Ni
mainly
came
parent
material,
while
affected
by
both
natural
sources
human
activities.
Hg
originated
atmospheric
deposition
emissions
coal
combustion
chemical
industry.
areas
with
high
contents
consistent
locations
industrial
sites.
geoaccumulation
indices
potential
risk
showed
that
only
few
moderately
or
strongly
polluted
Zn.
However,
part
was
at
strong
extreme
levels,
which
should
receive
attention.
Revista Internacional de Contaminación Ambiental,
Journal Year:
2019,
Volume and Issue:
35(3), P. 515 - 539
Published: Aug. 1, 2019
The
aim
of
this
work
was
to
establish
the
intervention
requirements
30
tailings
deposits
located
in
region
Antofagasta,
Chile,
identified
National
Tailings
Survey
carried
out
by
Service
Geology
and
Mining
Chilean
government
2017.For
evaluation,
data
49
geochemical
characterizations
samples
registered
as
October
2017
were
considered.The
methodology
used
for
evaluation
based
on
Dutch
Soil
Regulation
Circular,
from
which
two
ways
assessment
developed.The
first
approach
uses
a
simple
graphic
method
that
depends
only
concentration
elements
solid
phase
percentage
clay
soil.The
second
considers
information
related
is
not
available,
therefore,
defines
concepts
threshold
factor
adjusted
factor.Using
proposed
method,
presents
analysis
environmental
significance
mining
activity
Chile:
Cu,
Cr,
Ni,
Zn,
Pb,
As,
Cd
Hg.The
allows
delimiting
areas
foreseeable
risks
people
and/or
environment,
resulting
three
criteria
each
element:
1)
requires
intervention,
2)
conditional
3)
does
require
intervention.These
results
are
summarized
means
final
score
determines
level
priority
assigned
sample.The
indicates
Hg
required,
there
being
one
case
requiring
intervention.Regarding
Cu
100
%
measurements
indicated
at
least
requirement
intervention.Within
region,
commune
Sierra
Gorda
contains
67
whose
must
be
prioritized
according
obtained
(greater
than
four
possible
maximum
eight).On
other
hand,
greater
tonnage
(the
sites
Talabre
Laguna
Seca)
do
present
moment.
Geochemistry Exploration Environment Analysis,
Journal Year:
2018,
Volume and Issue:
19(2), P. 121 - 128
Published: July 30, 2018
The
spatial
and
temporal
distributions
of
Hg
in
different
fractions
sediment
samples
from
the
Valdeazogues
River
(Almadén)
were
investigated.
Almadén
is
widely
known
as
world's
largest
mining
district.
A
total
nine
sites
during
six
time
periods
monitored
using
a
BCR
(Community
Bureau
Reference)
sequential
extraction
procedure.
results
showed
that
mainly
present
residual
cinnabar
but
there
another
important
organic
fraction
which
primarily
incorporated.
Higher
proportions
found
wet
seasons,
while
opposite
true
fraction.
exchangeable/carbonate
Fe-Mn
oxide
phases
are
minor
fractions,
they
less
susceptible
to
seasonal
changes.
potential
risk
for
aquatic
medium
was
evaluated
based
on
non-residual
(exchangeable/carbonate
+
oxides
organic)
fractions.
high
potentially
(bio)available,
together
with
concentrations,
indicated
an
risk,
especially
areas
close
mines.
Although
all
it
particularly
noticeable
dry
due
increase
fraction,
may
favor
transference
sediments
environment
physic-chemical
river
conditions.
