Groundwater nitrate response to hydrogeological conditions and socioeconomic load in an agriculture dominated area
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Янв. 8, 2025
Nitrate
pollution
is
widespread
environmental
concern
in
most
shallow
groundwater
systems.
This
study
conducts
a
comprehensive
investigation
of
groundwater,
deep
and
surface
water
region
the
Chinese
Loess
Plateau.
this
area
severe
with
more
than
half
samples
exceeding
limit
nitrate
for
drinking
(50
mg/L).
Temporal
variation
reveals
continued
increase
although
fertilizer
use
has
been
reduced,
recently.
Spatially,
much
lower
that
supporting
anthropogenic
origin
from
surface.
The
intrinsic
vulnerability
index
indicates
less
susceptibility
loess
aquifer
to
comparison
alluvial
aquifer.
However,
high
levels
are
observed
both
aquifers.
risk
assessment
combined
loads
explains
occurrence
precisely.
Agricultural
inputs
release
sewage-effluents
major
contributions
hydrogeochemical
evidence.
aquifer,
which
supposed
be
susceptible
contamination,
non-negligible
factor.
Control
long-standing
issue
will
require
sustained
monitoring.
Язык: Английский
Chemical evolution characteristics and influencing factors of groundwater in the saline and fresh water funnel area in Hengshui City, North China
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Янв. 25, 2025
Both
over-exploitation
and
exploitation
reduction
of
groundwater
can
alter
the
conditions
recharge
discharge,
thereby
impacting
overall
quality
groundwater.
This
study
utilizes
hydrogeochemical
methods
statistical
analysis
to
explore
spatial
temporal
evolution
characteristics
influencing
factors
chemistry
in
saline-freshwater
funnel
area
Hengshui
City
under
reduction.
The
results
showed
that:
With
exception
deep
freshwater
western
region,
which
exhibits
a
trend
water
deterioration
(Cl−
accounted
for
more
than
25%),
other
areas
demonstrates
an
improving
(HCO
$$_{3}^{-}$$
25%).
origins
hydrochemical
components
two
types
are
influenced
by
rock
weathering.
Only
shallow
saline
eastern
region
is
impacted
evaporation.
And
hydraulic
play
distinct
role
controlling
different
areas.
It
mainly
manifested
changing
water-rock
reaction
speed
diluting
ion
concentration
area.
Язык: Английский
Groundwater in Arid and Semi-arid Regions: Issues of Scarcity and Quality
Springer hydrogeology,
Год журнала:
2025,
Номер
unknown, С. 115 - 136
Опубликована: Янв. 1, 2025
Язык: Английский
Hydrogeochemical heterogeneity, driving forces, and human health risk of groundwater in an arid alluvial fan plain on Tibetan Plateau
Human and Ecological Risk Assessment An International Journal,
Год журнала:
2025,
Номер
unknown, С. 1 - 22
Опубликована: Март 18, 2025
Язык: Английский
Hydrosphere Under the Driving of Human Activity and Climate Change: Status, Evolution, and Strategies
Sustainability,
Год журнала:
2025,
Номер
17(7), С. 3257 - 3257
Опубликована: Апрель 6, 2025
The
hydrosphere
is
a
foundational
component
of
the
Earth’s
systems,
sustaining
biological
processes,
regulating
environmental
stability,
and
enabling
socioeconomic
development
[...]
Язык: Английский
Geochemical fingerprints, evolution, and driving forces of groundwater in an alpine basin on Tibetan Plateau: Insights from unsupervised machine learning and objective weight allocation approaches
Journal of Hydrology Regional Studies,
Год журнала:
2024,
Номер
56, С. 102054 - 102054
Опубликована: Ноя. 5, 2024
Язык: Английский
Geochemical evolution and mechanisms controlling groundwater chemistry in the transboundary Komadugu–Yobe Basin, Lake Chad region: An integrated approach of chemometric analysis and geochemical modeling
Journal of Hydrology Regional Studies,
Год журнала:
2024,
Номер
57, С. 102098 - 102098
Опубликована: Дек. 2, 2024
Язык: Английский
Deciphering pollution sources and mechanisms controlling groundwater chemistry in a typical dense agricultural plain on Yungui Plateau
Water Environment Research,
Год журнала:
2024,
Номер
96(12)
Опубликована: Дек. 1, 2024
Groundwater
is
a
critical
resource
for
economic
growth
and
livelihoods
in
the
dense
agricultural
plains
of
plateaus.
However,
contaminations
from
various
sources
pose
significant
threats
to
groundwater
quality.
Understanding
contamination
mechanisms
hydrochemical
control
essential
sustainable
development
agriculturally
intensive
plains.
This
research
utilizes
23
datasets
chemical
measurements
apply
hierarchical
clustering
analysis,
positive
matrix
factorization,
analysis
techniques.
Through
these
methods,
study
identifies
deciphers
within
representative
plain
region
Yungui
Plateau.
The
finds
indicate
that
primarily
derives
rainfall
occurred
surrounding
mountains.
During
long
underground
flow
process,
undergoes
water-rock
interactions
ion
exchanges
with
lithological
strata,
resulting
formation
distinct
types.
As
it
traverses
regions
influenced
by
human
activities,
encounters
varying
levels
types
contamination.
Consequently,
there
notable
variation
quality
across
different
areas
plain.
dominated
faces
HCO
Язык: Английский
Comprehensive Assessment of Groundwater Hydrochemistry, Driving Forces, Water Quality, and Associated Health Hazards in the Wen River Basin, Northern China
Sustainability,
Год журнала:
2024,
Номер
16(24), С. 10928 - 10928
Опубликована: Дек. 13, 2024
Groundwater
is
essential
for
water
resources,
serving
as
a
key
drinking
source
in
China.
It
supports
daily
needs
urban
and
rural
residents,
aids
development,
maintains
ecological
balance.
This
study
conducted
sampling
survey
of
groundwater
the
Wen
River
basin
(WRB),
assessing
hydrochemical
features,
genesis
mechanisms,
quality,
health
risks.
The
findings
reveal
that
WRB
weakly
alkaline,
with
an
average
total
dissolved
solids
(TDS)
concentration
755.24
mg/L.
Freshwater
constitutes
approximately
81.48%
groundwater,
following
order
cations:
Ca2+
>
Na+
Mg2+
K+,
anions:
HCO3−
SO42−
NO3−
Cl−.
predominant
types
are
SO4·Cl-Ca·Mg
HCO3-Ca·Mg.
chemical
composition
primarily
influenced
by
silicate
rock
weathering,
dissolution
processes,
cation
exchange,
human
activities.
Environmental
Water
Quality
Index
(EWQI)
value
74.65
signifies
overall
quality
quite
good,
indicating
majority
suitable
purposes.
Notably,
inferior
predominantly
found
downstream
River.
Calculations
sodium
adsorption
ratio
(SAR),
residual
carbonate
(RSC),
percentage
(%Na)
indicate
at
most
points
irrigation.
Furthermore,
risk
assessment
(HRA)
reveals
oral
intake
presents
greater
to
individuals
than
dermal
contact.
mean
Hazard
(HI)
children
3.24,
staggering
79.89%
non-carcinogenic
(NHR)
values
surpassing
acceptable
standards.
For
adults,
HI
1.39,
53.44%
NHR
exceeding
These
data
more
susceptible
risks
adults
midstream
river
exhibit
higher
compared
upper
reaches.
can
provide
critical
management
offer
guidance
future
resource
pollution
control
efforts.
Язык: Английский