Ecotoxicology and Environmental Safety,
Год журнала:
2024,
Номер
281, С. 116614 - 116614
Опубликована: Июнь 19, 2024
A
heavily
impacted
river
basin
(Caudal
River,
NW
Spain)
by
Hg
and
Cu
mining
activities,
abandoned
decades
ago,
was
used
to
evaluate
the
environmental
quality
of
their
sediments.
The
obtained
results
compared
with
reference
values
established
US
EPA
Canadian
Council
Ministers
Environment
for
sediments,
have
shown
that
main
elements
concern
are
arsenic
(As),
mercury
(Hg)
and,
a
lesser
extent,
copper
(Cu),
which
reach
concentrations
up
1080,
80
54
mg
kg
Toxics,
Год журнала:
2023,
Номер
11(2), С. 150 - 150
Опубликована: Фев. 3, 2023
The
occurrence,
multi-index
assessment,
and
sources
of
heavy
metals
in
surface
sediments
Zhelin
Bay
were
investigated.
Average
metal
concentrations
(mg/kg)
81.89
(Cr),
770.76
(Mn),
16.81
(Co),
62.25
(Ni),
96.30
(Cu),
162.04
(Zn),
73.40
(Pb),
with
the
studied
seven
being
significantly
higher
than
their
corresponding
background
values.
Geo-accumulation
index
(Igeo)
pollution
load
(PLI)
implemented
to
assess
degree
contamination.
Igeo
PLI
indicated
that
Cr,
Mn,
Co,
Zn,
Pb
slightly
polluted,
Cu
Ni
moderately
polluted
region.
Potential
ecological
risk
(RI)
mean
possible
effect
level
(PEL)
quotient
conducted
risk.
RI
PEL
demonstrated
slight
risks
exhibited
a
21%
probability
toxicity.
Principal
component
analysis
(PCA)
combined
correlation
(CA)
hierarchical
cluster
(HAC)
revealed
contamination
might
originate
from
three
type
sources.
