Water,
Journal Year:
2025,
Volume and Issue:
17(9), P. 1378 - 1378
Published: May 2, 2025
In
groundwater
quality
analysis,
nonlinear
models
are
typically
used,
with
domains
spanning
the
entire
real
number
line.
this
study,
alongside
these
(Logistic,
Gompertz
and
Richards),
defined
based
on
functions
whose
domain
is
only
positive
part
of
line
presented
(Michaelis–Menten,
Hill
1
2
Rosin–Rammler
2).
Two
case
studies
were
observed
in
paper:
(i)
dependence
nitrate
concentration
pumping
rate
Bartolovec
wellfield,
(ii)
distance
from
source
pollution
Varaždin
wellfield.
Both
wellfields
located
alluvial
aquifer
northwestern
Croatia.
way,
curves
obtained
basis
mentioned
mathematical
fitted
to
experimental
data.
The
results
show
a
good
fit,
so
that
values
coefficients
determination
R2
greater
than
0.82
for
study
0.96
(ii).
Since
differ
parameters
(e.g.,
three
Michaelis–Menten
five
Rosin–Rammler),
corrected
Akaike
information
criterion
(AICc)
was
used
their
comparison.
best
fit
model,
while
(ii),
it
model.
A
t-test
performed
all
models,
they
can
be
considered
reliable
at
significance
level
0.05.
However,
t-values
p-values
also
calculated
each
parameter
Based
results,
concluded
model
0.05
both
studies.
For
reason,
generally
demonstrates
superiority
restricted
numbers
1,
1)
over
traditional
Logistic,
Richards)
analysis.
These
findings
offer
practical
tools
predicting
contaminant
extremes
maximum/minimum
concentrations)
optimizing
management
strategies.
Human and Ecological Risk Assessment An International Journal,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 23
Published: Dec. 4, 2024
Identifying
pollution
sources
and
measuring
their
impact
is
essential
for
protecting
groundwater.
Groundwater
in
the
Guanzhong
region
were
identified
using
positive
matrix
decomposition
(PMF)
model,
contributions
quantified.
The
spatial
distribution
of
socio-economic
factors
(population,
GDP,
fertilizer
use,
farmland,
livestock)
was
analyzed.
Redundancy
correlation
analyses
used
to
assess
land
use
on
groundwater
quality.
results
showed
that
primary
physicochemical
constituents
exceeding
standard
limits
were,
descending
order,
NO3−,
Na+,
TDS,
F−,
SO42−,
Cl−,
most
polluted
areas
found
eastern
southern
parts
study
area.
Land
can
have
diverse
impacts
Five
main
responsible
quality
deterioration
comprehensively
identified,
i.e.,
agricultural
nonpoint
sources,
domestic
from
urban
rural
development,
natural
release
fluorine
stratigraphic
minerals
as
well
coal
mine
storage
combustion,
industrial
discharges,
water-rock
reactions.
Natural
discharges
are
major
causes
degradation
area,
which
followed
by
reactions,
agriculture,
pollution.
