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.
Geocarto International,
Год журнала:
2023,
Номер
38(1)
Опубликована: Май 2, 2023
The
majority
of
people
living
on
earth
rely
groundwater
as
their
primary
supply
water
for
daily
needs.
However,
human
activities
continuously
threaten
this
natural
resource.
In
an
attempt
to
unravel
the
extent
impact
human-related
physicochemical
characteristics
in
Nnewi
and
Awka
urban
clusters
(Nigeria),
several
techniques
were
integrated
study.
Groundwater
samples
warm
acidic
nature.
Concentrations
SO42-,
NO3-,
PO43-,
Cl-,
HCO3-,
Ca2+,
Mg2+,
Na+
K+
within
set
benchmarks.
nutrient
pollution
index
(ranging
from
0.060
0.745),
nitrate
(varying
between
−0.999
−0.790)
0.057
0.630)
estimated
anthropogenic
contamination
showed
low
characteristics.
health
risks
due
ingestion
skin
absorption
nitrate-contaminated
computed
six
age
groups
(6–12
months,
5–10
years,
10–15
15–20
20–60
years
>60
years)
risk
values
that
<
1,
implying
chronic
humans.
cumulative
total
hazard
ranged
0.006
0.787
with
a
mean
value
0.167.
Chemometric
analyses
geochemical
plots
revealed
relationships
variables
sources.
Chadha's
plot
55%
Ca2+-Mg2+-Cl-
waters,
predominating
over
Na+-Cl-
Ca2+-Mg2+-HCO3-
waters.
Bivariate
multivariate
also
indicated
impact.
Furthermore,
principal
component
analysis
R-type
hierarchical
clustering
confirmed
chemistry
quality
mostly
influenced
by
geogenic
processes
than
acts.
Conclusively,
influence
is
low.
These
findings
would
be
useful
future
monitoring
both
clusters.
Frontiers in Environmental Science,
Год журнала:
2023,
Номер
11
Опубликована: Март 3, 2023
Land
degradation
has
become
one
of
the
major
threats
throughout
globe,
affecting
about
2.6
billion
people
in
more
than
100
countries.
The
highest
rate
land
is
Asia,
followed
by
Africa
and
Europe.
Climate
change
coupled
with
anthropogenic
activities
have
accelerated
developing
nations.
In
India,
affected
105.48
million
hectares.
Thus,
modeling
mapping
soil
loss,
assessing
vulnerability
threat
active
erosional
processes
a
region
are
challenges
from
water
conservation
aspects.
present
study
attempted
rigorous
to
estimate
loss
Banas
Basin
Rajasthan
state,
using
GIS-integrated
Revised
Universal
Soil
Loss
Equation
(RUSLE)
equation.
Priority
ranking
was
computed
for
different
watersheds
terms
degree
their
catchments,
so
that
appropriate
measures
can
be
implemented.
total
area
basin
(68,207.82
km
2
)
systematically
separated
into
25
ranging
113.0
7626.8
.
Rainfall
dataset
Indian
Meteorological
Department
30
years
(1990–2020),
FAO
based
map
characterization,
ALOS
PALSAR
digital
elevation
model
topographic
assessment,
Sentinal-2
use
cover
were
integrated
erosion/loss
risk
assessment.
annual
recorded
as
21,766,048.8
tons.
areas
under
very
low
(0–1
t
ha
-1
year
),
(1–5
medium
(5–10
high
(10–50
extreme
(>50
categories
24.2,
66.8,
7.3,
0.9,
0.7%,
respectively,
whereas
respective
average
values
obtained
0.8,
3.0,
6.0,
23.1,
52.0
among
range
1.1–84.9
,
being
(84.9
WS18,
WS10
(38.4
SW25
(34.7
WS23
(17.9
it
lowest
WS8
(1.1
).
WS18
highest/top
priority
rank
considered
first
planning
implementation.
quantitative
results
this
would
useful
implementation
problematic
controlling
through
erosion.
