Physical Science & Biophysics Journal,
Journal Year:
2023,
Volume and Issue:
7(2), P. 1 - 12
Published: Aug. 3, 2023
The
Okrika
Stretch
of
Bonny
River,
Nigeria,
has
long
been
a
vital
ecological
and
economic
resource
for
the
surrounding
communities.
However,
increasing
industrialization
anthropogenic
activities
have
raised
concerns
about
potential
pollution
this
precious
aquatic
ecosystem.
This
study
delves
into
assessment
environmental
trace
metal
concentrations,
specifically
Lead
(Pb),
Nickel
(Ni),
Zinc
(Zn),
Copper
(Cu),
Iron
(Fe),
as
indicators
in
various
components
Stretch.
research
scrutinizes
water,
sediment,
oyster,
periwinkle
samples,
utilizing
cutting-edge
analytical
techniques
to
measure
levels.
Sampling
was
carried
out
at
five
distinct
locations,
including
control
site
situated
outside
presumed
affected
area,
both
dry
wet
seasons
throughout
year.
Following
collection,
samples
underwent
digestion
subsequent
analysis
using
Bulk
Scientific
Model
200A
Atomic
Absorption
Spectrophotometer
(AAS).
Our
findings
reveal
complex
interplay
concentrations
across
different
components.
water
exhibit
varying
levels
these
metals,
reflecting
dynamic
nature
riverine
systems.
Sediment
identifies
hotspots
accumulation,
potentially
posing
risks
life.
Oysters
periwinkles,
food
web,
accumulate
metals
rates,
providing
insights
human
health
implications.
not
only
sheds
light
on
current
state
within
but
also
underscores
importance
continued
monitoring
mitigation
efforts.
results
call
comprehensive
management
strategy
safeguard
sustainability
River
region.
By
addressing
complexities
pollution,
contributes
broader
discourse
safeguarding
our
invaluable
ecosystems
worldwide.
Plants,
Journal Year:
2023,
Volume and Issue:
12(16), P. 2939 - 2939
Published: Aug. 14, 2023
Phytoremediation
is
an
environment-friendly
method
for
toxic
elements
remediation.
The
aim
of
this
study
was
to
improve
the
phytoremediation
efficiency
Brassica
juncea
and
rhizosphere
soil
micro-ecology
in
cadmium
(Cd)
arsenic
(As)
contaminated
soil.
A
field
experiment
conducted
with
six
treatments,
including
a
control
treatment
(CK),
two
treatments
contents
Trichoderma
harzianum
(T1:
4.5
g
m-2;
T2:
9
m-2),
one
biochar
(B:
750
combined
T1B
T2B.
results
showed
promoted
total
chlorophyll
translocation
factor
juncea,
while
plant
biomass
compared
CK.
T2B
best
results,
which
significantly
increased
Cd
accumulation
by
187.49-308.92%,
As
125.74-221.43%.
result,
soil's
content
reduced
19.04%
49.64%
38.76%
53.77%.
amendment
available
potassium,
phosphorus,
nitrogen,
organic
matter.
Meanwhile,
both
activity
glutathione
peroxidase
enzymes
plants,
together
urease
sucrase
soil,
were
increased.
Firmicutes
(dominant
bacterial
phylum)
Ascomycota
fungal
positive
close
correlation
nutrients
potentially
contents.
This
demonstrated
that
assisted
effective
remediation
provides
new
strategy
enhancing
efficiency.
Environmental Science and Pollution Research,
Journal Year:
2024,
Volume and Issue:
31(31), P. 43633 - 43658
Published: June 13, 2024
Abstract
Burullus
lagoon
is
part
of
Egypt’s
protected
area
network.
The
serves
as
a
reservoir
for
drainage
water
discharged
from
agricultural
areas,
and
the
lake’s
sediments
provide
unique
opportunity
to
record
environmental
behavior
reconstruct
heavy
metal
contamination
history.
In
present
study,
sediment
chronology,
sedimentation
rates,
accumulation
fluxes
were
estimated
in
four
cores
using
210
Pb
dating
models
evaluate
how
human
activities
have
affected
coastal
environment.
Using
radioisotopes
137
Cs,
radiometric
was
carried
out
gamma-ray
spectrometry.
At
Egypt
Second
Research
Reactor
(ETRR-2),
element
concentrations
determined
instrumented
neutron
activation
analysis
(INAA-
k
0
method).
Our
findings
show
that
constant
rate
supply
(CRS),
which
has
been
verified
with
peak
artificial
radionuclide
best
model
performed
chronology
Lagoon.
average
rate,
according
models,
0.85
cm/year.
large
variation
especially
after
1990s,
consistent
an
increase
anthropogenic
flux
metals.
This
may
be
led
into
significant
problem
such
reducing
size
lake
degrading
quality
Enrichment
factor
(EF)
studied
elements
displayed
following
order:
Cl
>
Ca
Na
Br
Zn
Ta
Ti
V
Cr
Sc
Mg
Mn
Fe
Hf
higher
than
unity.
Furthermore,
Nemerow
pollution
index
(PI
)
revealed
increasing
direction
drains
slightly
polluted.
Consequently,
pollutant
indices
showed
urbanization
industrial
development
increased
depositional
metals
over
time.
