European Journal of Forest Engineering,
Год журнала:
2024,
Номер
unknown
Опубликована: Июль 8, 2024
The
Ramsar
Convention
on
Wetlands
designates
over
2,000
sites
of
international
importance,
providing
crucial
habitats
for
diverse
species.
Uluabat
Lake,
faces
anthropogenic
pressures
such
as
urbanization,
agriculture,
and
industrialization,
affecting
its
ecological
integrity.
Using
multi-temporal
Landsat
7
9
satellite
images
from
2002
2022,
along
with
2019
management
plans,
we
assessed
land
use/land
cover
(LULC)
changes
in
the
lake's
catchment
area.
Data
were
pre-processed
ENVI
stored
ERDAS
Imagine.
We
employed
pixel-based
image
analysis
maximum
likelihood
classification
(MLC)
to
generate
LULC
maps
evaluated
accuracy
using
ground
truth
data
kappa
coefficient.
Our
findings
revealed
a
15.8%
reduction
lake
area,
136.1
km²
114.5
primarily
due
sediment
transport
surrounding
agricultural
tributary
streams.
Urban-agricultural
reed-swamp
areas
increased
by
74.7%
59.6%,
respectively,
while
shrubs
forests
declined
35.64%,
largely
reed
conversion
agriculture
Mustafakemalpaşa
River
delta.
Overall
ranged
88.2%
91%
coefficient
0.81
0.82.
These
transformations
highlight
increase
swamp
decrease
emphasizing
need
effective
conservation
practices.
Environmental Science and Pollution Research,
Год журнала:
2024,
Номер
31(13), С. 19185 - 19205
Опубликована: Фев. 15, 2024
Groundwater
serves
as
a
primary
water
source
for
various
purposes.
Therefore,
aquifer
pollution
poses
critical
threat
to
human
health
and
the
environment.
Identifying
aquifer's
highly
vulnerable
areas
is
necessary
implement
appropriate
remedial
measures,
thus
ensuring
groundwater
sustainability.
This
paper
aims
enhance
vulnerability
assessment
(GWVA)
manage
quality
effectively.
The
study
focuses
on
El
Orjane
Aquifer
in
Moulouya
basin,
Morocco,
which
facing
significant
degradation
due
olive
mill
wastewater.
maps
(GVMs)
were
generated
using
DRASTIC,
Pesticide
SINTACS,
SI
methods.
To
assess
effectiveness
of
proposed
improvements,
24
piezometers
installed
measure
nitrate
concentrations,
common
indicator
contamination.
aimed
GWVA
by
incorporating
new
layers,
such
land
use,
adjusting
parameter
rates
based
comprehensive
sensitivity
analysis.
results
demonstrate
increase
Pearson
correlation
values
(PCV)
between
produced
GVMs
measured
concentrations.
For
instance,
PCV
DRASTIC
method
improved
from
0.42
0.75
after
adding
use
layer
Wilcoxon
method.
These
findings
offer
valuable
insights
accurately
assessing
with
similar
hazards
hydrological
conditions,
particularly
semi-arid
arid
regions.
They
contribute
improving
environmental
management
practices,
long-term
sustainability
aquifers.
Chemosphere,
Год журнала:
2024,
Номер
359, С. 142305 - 142305
Опубликована: Май 11, 2024
The
widespread
presence
of
arsenic
(As)
and
fluoride
(F-)
in
groundwater
poses
substantial
risks
to
human
health
on
a
global
scale.
These
elements
have
been
identified
as
the
most
prevalent
geogenic
contaminants
northern
Mexico.
Consequently,
this
study
aimed
evaluate
ecological
associated
with
content
As
F-
Meoqui-Delicias
aquifer,
which
is
one
Mexico's
emblematic
irrigation
districts.
Concentrations
were
measured
38
samples
using
ICP-MS
ion
chromatography,
respectively.
Overall,
these
showed
similar
trend
across
revealing
positive
correlation
between
them
pH.
concentration
ranged
from
5.3
μg/L
303
0.5
mg/L
8.8
mg/L,
Additionally,
levels
surpassed
established
national
standards
for
safe
drinking
water
92%
97%
samples,
Given
that
used
both
agricultural
purposes
activities,
also
assessed
posed
by
Monte
Carlo
simulation
Species
Sensitivity
Distribution.
findings
disclosed
significant
noncarcinogenic
risk
exposure
F-,
well
an
unacceptable
carcinogenic
through
consumption
adults
children.
Furthermore,
high
aquatic
species
was
medium
sampling
sites.
Therefore,
provide
valuable
information
Mexican
authorities
international
organizations
(e.g.,
WHO)
about
adverse
effects
any
without
treatment
region
represents
health.
Applied Water Science,
Год журнала:
2024,
Номер
14(6)
Опубликована: Май 5, 2024
Abstract
Assessing
groundwater
quality
is
critical
to
regional
water
resource
conservation
and
human
health
safety,
especially
in
areas
with
co-existence
of
toxic
constituents
fluoride
(F
−
)
arsenic
(As).
In
this
study,
fourteen
samples
were
collected
Feng
County,
Northwestern
Jiangsu
Province
identify
dominant
contaminants
their
spatial
distribution
risk.
The
composition
variation
characteristics
major
ions
(K
+
,
Na
Ca
2+
Mg
Cl
SO
4
2−
HCO
3
NO
trace
elements
As,
Mn)
analyzed.
hydrochemical
results
revealed
that
high
F
was
mainly
distributed
the
northern
whereas
As-riched
primarily
southern
areas.
Notably,
over
85.7%
21.4%
shallow
exceeded
drinking
standard
1.5
mg/L
for
10
µg/L
respectively.
Based
on
index
(WQI)
appraisal
result,
71.4%
study
area
classified
as
“poor”,
thus
unsuitable
directly.
We
assessed
non-carcinogenic
risk
(HQ
Fluoride
As
Arsenic
carcinogenic
(CR
).
calculated
hazard
quotient
(HQ)
indicated
nearly
all
have
an
unacceptable
>
1)
each
age
group.
However,
HQ
values
28.6%,
21.4%,
posed
potential
risks
infants,
children,
females,
males,
CR
showed
0%,
28.6%
1.0
×
−4
irrigation
suitability
assessment
doubtful
irrigation,
owed
magnesium
hazards.
findings
will
assist
policymakers
formulating
proper
remedial
policies
mitigation
strategies
ensure
safety
water.
Frontiers in Earth Science,
Год журнала:
2024,
Номер
12
Опубликована: Сен. 27, 2024
Introduction
The
groundwater
in
arid
countries
such
as
Egypt
represent
the
main
water
resources
desert
regions
due
to
long
distance
between
these
(oasis)
and
Nile
River.
Contamination
of
limited
with
toxic
metals
threaten
health
individuals
regions.
Methods
current
study
integrates
isotopic
tracers,
hydrogeochemistry,
geophysical
logs,
positive
matrix
factorization
(PMF
model),
Monte
Carlo
(MCS)
simulation
for
pollution
source
apportionment
risks
associated
heavy
Nubian
Sandstone
aquifer
(NSSA).
Results
Discussion
resource
used
drinking
purposes
(NSSA)
is
pale
meteoric
(non-rechargeable
aquifer).
Silicate
weathering,
old
trapped
sea
water,
reverse
ion
exchange
evaporation,
dissolution
are
dominant
mechanisms
controlling
chemistry.
PMF
model
showed
that
major
ions
NSSA
originated
from
four
significant
sources
(anthropogenic
activities,
minerals,
iron-bearing
mixing
seawater,
hydrothermal
water).
total
risk
(HI)
oral
values
highlighted
non-carcinogenic
dangers
adults
children
through
exposure.
At
same
time,
dermal
contact
posed
a
no
high
children.
Most
samples
had
carcinogenic
(CR)
higher
than
allowed
limits
(1.0E-4)
like
Cadmium,
chromium,
lead,
suggesting
effects
across
all
age
groups.
approach-based
concern
evaluation
assessed
5th
%
CR
(child)
0.00012,
0.0036,
0.0088
Cd,
Cr,
Pb,
respectively,
indicating
more
potential
Urgent
comprehensive
treatment
measures
imperative
mitigate
identified
area.