Frontiers in Water,
Journal Year:
2023,
Volume and Issue:
5
Published: Dec. 19, 2023
As
one
of
China's
nine
border
provinces,
Jilin
Province
is
an
important
window
for
“Belt
and
Road”
to
open
up
the
north,
channel
foreign
trade
exchanges.
Therefore,
understanding
hydrogeochemical
characteristics
very
effective
water
resources
management
in
Province.
A
total
64
groundwater
samples
were
collected
from
32
monitoring
Wells
Use
analysis
techniques,
WQI
index
human
health
risk
methods
assess
processes
quality,
including
determination
parameters,
conventional
ions,
trace
elements
stable
isotopes
(δD
δ
18
O).
The
results
show
that
slightly
alkaline,
cations
are
mainly
Na
+
,
Ca
2+
Mg
K
anions
HCO3-
Cl
−
id="M2">SO42-
.
Most
belong
Ca-HCO
3
Na-HCO
types,
which
formed
by
dissolution
calcite,
dolomite,
gypsum,
silicates
carbonates.
Stable
isotope
shows
recharge
comes
atmospheric
precipitation
at
altitude
1,430~2,348
m.
strong
correlation
between
indicates
a
common
source.
quality
(WQI)
study
area
Class
I
III,
hazard
quotient
(HQ)
(HI)
both
below
1.
This
excellent
minimal
risks
associated
with
consumption.
It
worth
noting
enriched
Tanlu
fault
zone.
provides
scientific
guidance
utilization
allocation
Ecological Indicators,
Journal Year:
2024,
Volume and Issue:
159, P. 111680 - 111680
Published: Feb. 1, 2024
Sediment
concentrations
of
rare
earth
elements
(REEs)
can
reflect
aquatic
system
impact
from
anthropogenic
activities,
especially
in
small
lakes
characterized
by
high
sensitivity.
However,
the
literature
on
REEs
sediment
profiles
is
limited,
impeding
a
comprehensive
understanding
historical
influence
activities
urban
environments.
In
this
investigation,
we
examined
spatial
distribution
and
fractionation
sediments
Aha
Lake,
karst
lake.
The
results
reveal
that
average
contents
surface
ranged
76.88
to
181.38
mg/kg.
Light
(LREEs)
comprised
>
80
%
total
almost
all
sediments,
indicating
distinct
enhancement
terrestrial
source
influx
derived
LREE-rich
material.
Negative
Eu
anomalies,
weak
positive
Ce
anomalies
may
be
attributed
oxidizing
conditions.
ΣREEs
display
declining
tendency
lake's
border
its
center,
primarily
influenced
human
activities.
Vertical
distributions
most
core
consistently
vary
with
depth,
showing
decrease
at
10–20
cm
higher
20–30
cm.
Additionally,
UCC-normalized
REE
patterns
are
observed
depths
0–30
reflecting
contemporary
environmental
changes
various
sampling
sites.
coal
mining
content
found
than
development
only.
Moreover,
bivariate
(La/Sm)UCC
-
(La/Yb)UCC
plot
effectively
differentiates
depositional
origin
different
layers
locations,
such
as
those
associated
wastewater
deposition
deposition.
This
study
provides
valuable
insights
into
variations
water
environments
due
utilizing
sensitive
levels
lake
sediments.
Water,
Journal Year:
2023,
Volume and Issue:
15(4), P. 654 - 654
Published: Feb. 8, 2023
Rare
earth
element
(REE)
concentrations
in
river
water
reflect
both
local
geological
background
and
the
intensity
of
anthropogenic
activities.
The
increasing
demand
for
high-tech
applications
is
accompanied
by
an
increase
REEs
environments,
especially
urban
regions.
Therefore,
dissolved
a
typical
(Yongding
River)
were
analyzed
to
reveal
influence
inputs.
It
was
found
that
sum
REE
(ΣREE)
6.27~86.26
ng
L−1
(mean
31.05
L−1).
spatial
distribution
significantly
affected
natural
processes
human
To
eliminate
effect
upstream
land
use
on
downstream
measurements,
this
study
established
500
m
buffer
zone
alongside
identified
origin
through
correlations
among
proportions
within
zone,
population
density,
REEs.
Post-Archean
Australian
Shale
(PAAS)-normalized
revealed
pronouncedly
positive
Gd
anomalies
range
0.30~20.16
all
samples.
Spearman
correlation
analysis
indicated
proportion
cultivated
positively
correlated
with
most
A
three-dimensional
tracer
system
via
Gdanth,
NO3−/Na+
Cl−/Na+
characterize
impact
sewage
treatment
plants,
hospitals
agricultural
activities
water.
results
indicate
acceleration
urbanization,
abnormal
can
be
considered
as
sensitive
indicator
assess
ecosystems.
ACS Earth and Space Chemistry,
Journal Year:
2023,
Volume and Issue:
7(3), P. 642 - 652
Published: March 1, 2023
The
assessment
of
heavy
metal
(HM)
distributions,
sources,
and
potential
risks
is
the
first
step
high-efficiency
contaminant
degradation
sustainable
water
resource
utilization.
In
this
study,
nine
HMs
from
a
typical
urban
river
(Yongding
River)
in
Beijing,
China
was
implemented.
Results
evidence
that
mean
HM
concentrations
decreased
order:
Mo
>
V
As
Zn
Ni
Mn
Fe
Cr
Co.
concentration
As,
Zn,
Mn,
Fe,
has
significant
increase
middle
reaches,
indicating
agricultural
industrial
pollution
sources
nearby.
Three
factors
were
extracted
via
principal
component
analysis,
suggesting
Ni,
Co,
Mo,
are
mainly
derived
anthropogenic
inputs.
likely
originated
natural
while
stemmed
mixed
origins.
contamination
levels
moderate
concentrated
on
Cr.
Strong
correlations
among
regional
land
use
also
confirmed
result.
noncarcinogenic
carcinogenic
evaluated
based
four
age
groups
by
Monte
Carlo
simulation.
Although
results
environmental
modeling
revealed
weak
risk
adults
(6.20
×
10–5),
for
juveniles
cannot
be
ignored.
Target
hazard
quotients
analysis
implied
relatively
low
when
consuming
fish
tissues
rivers,
inorganic
acceptable.
total,
study
provided
powerful
support
restoring
contaminations
maintaining
management.
Ecological Indicators,
Journal Year:
2023,
Volume and Issue:
158, P. 111422 - 111422
Published: Dec. 20, 2023
Lake
sediments
serve
as
a
sink
for
trace
elements
and
provide
record
of
watershed
changes
resulting
from
anthropogenic
activities
natural
processes.
In
this
study,
eight
in
the
Aha,
an
urban
lake
Guiyang
City,
Southwest
China,
were
investigated
to
reveal
effects
historical
coal
mining
rapid
urbanization
watershed.
Results
showed
that
median
contents
measured
order
Zn
(220.00
mg/kg)
>
Ni
(98.16
Cr
(70.26
Cu
(66.20
As
(58.14
Co
(41.66
Pb
(28.33
Cd
(1.39
mg/kg).
Except
Pb,
concentrations
Cd,
As,
Zn,
Ni,
Co,
4.64,
2.33,
2.00,
1.92,
1.81,
1.09
times
higher
than
regional
background
values
respectively.
Trace
element
center
significantly
rest
sediment
cores,
relatively
stable
hydrodynamic
processes
region.
Vertical
variation
indicated
fluctuations
intensity
tributaries
effectively
tracked
by
variations
levels
middle
layer
Youyu
River
Baiyan
estuaries.
The
elevated
surface
Jinzhong
estuary
reflected
basin
over
past
20
years.
PMF
analysis
demonstrated
mixture
activities,
Cu,
originated
mining.
This
study
provides
important
information
comprehending
small-scale
lakes
environmental
changes.