Sustainability,
Год журнала:
2022,
Номер
14(24), С. 16768 - 16768
Опубликована: Дек. 14, 2022
Land
is
a
vital
component
of
nature
around
the
world
and
essential
for
humans,
terrestrial
plants,
animals.
However,
urbanization
growing
worldwide
groundwater
quality
in
urban
areas
declining
due
to
rapid
development,
industrialization,
pollution.
Hence,
it
important
determine
hydrogeochemistry
changes
concerning
land
use
cover
(LULC).
This
study
was
conducted
investigate
hydrogeochemical
mechanism
Sargodha,
one
Pakistan’s
fastest-growing
cities,
during
2015
2021
under
two
different
LULC
indices
named
normalized
difference
vegetation
index
(NDVI)
built-up
(NDBI).
Forty-eight
samples
were
collected
assess
domestic
irrigation.
The
Piper
diagram
revealed
that
(Ca2++Mg2+–HCO3−+CO32−)
(Na++K+–SO42−+Cl−)
main
components
both
years.
Gibbs
plot
silicate
weathering
indicated
rock
dominance
played
major
role
aquifers.
Additionally,
results
showed
4%
21%
unfit
human
consumption.
37%
40%
considered
not
fit
irrigation
2021,
respectively.
LULC,
NDVI,
NDBI
clearly
higher
compared
2015.
relationship
between
parameters
(NDVI
NDBI)
explained
none
had
relationship.
non-carcinogenic
risk
health
quotient
HQ
<
1,
indicating
no
severe
nitrate
(NO3−)
exposure
city.
current
suggests
conducting
future
investigations
considering
larger
scale
recommend
efficient
management
strategies,
planning,
ensuring
safe
drinking
water
prevent
Groundwater for Sustainable Development,
Год журнала:
2023,
Номер
23, С. 101049 - 101049
Опубликована: Ноя. 1, 2023
Groundwater
plays
a
pivotal
role
as
global
source
of
drinking
water.
To
meet
sustainable
development
goals,
it
is
crucial
to
consistently
monitor
and
manage
groundwater
quality.
Despite
its
significance,
there
are
currently
no
specific
tools
available
for
assessing
trace/heavy
metal
contamination
in
groundwater.
Addressing
this
gap,
our
research
introduces
an
innovative
approach:
the
Quality
Index
(GWQI)
model,
developed
tested
Savar
sub-district
Bangladesh.
The
GWQI
model
integrates
ten
water
quality
indicators,
including
six
heavy
metals,
collected
from
38
sampling
sites
study
area.
enhance
precision
assessment,
employed
established
machine
learning
(ML)
techniques,
evaluating
model's
performance
based
on
factors
such
uncertainty,
sensitivity,
reliability.
A
major
advancement
incorporation
metals
into
framework
index
model.
best
authors
knowledge,
marks
first
initiative
develop
encompassing
heavy/trace
elements.
Findings
assessment
revealed
that
area
ranged
'good'
'fair,'
indicating
most
indicators
met
standard
limits
set
by
Bangladesh
government
World
Health
Organization.
In
predicting
scores,
artificial
neural
networks
(ANN)
outperformed
other
ML
models.
Performance
metrics,
root
mean
square
error
(RMSE),
(MSE),
absolute
(MAE)
training
(RMSE
=
0.361;
MSE
0.131;
MAE
0.262),
testing
0.001;
0.00;
0.001),
prediction
evaluation
statistics
(PBIAS
0.000),
demonstrated
superior
effectiveness
ANN.
Moreover,
exhibited
high
sensitivity
(R2
1.0)
low
uncertainty
(less
than
2%)
rating
These
results
affirm
reliability
novel
monitoring
management,
especially
regarding
metals.
Advanced Energy Materials,
Год журнала:
2023,
Номер
13(44)
Опубликована: Окт. 10, 2023
Abstract
The
electroreduction
of
nitrate
into
green
ammonia
(NO
3
−
‐to‐NH
)
in
aqueous
solution
represents
a
sustainable
route
applicable
to
NH
electrosynthesis
and
nitrogen
balance.
However,
the
NO
undergoes
complex
eight
electron
(8e
transfer
pathway
results
unsatisfying
activity
selectivity.
Here,
mesostructures
engineering
is
presented
as
new
robust
design
strategy
for
producing
high‐performance
multimetallic
electrocatalysts
that
remarkably
promote
selective
electroreduction.
1D
PdCuAg
mesoporous
nanotubes
(MTs)
are
facilely
prepared
by
one‐step
galvanic
replacement‐assisted
surfactant‐templating
method
an
solution.
electrocatalyst
shows
remarkable
performance
with
high
Faradaic
efficiency
(FE
NH3
95.2%,
superior
yield
rate
17.7
mg
h
−1
,
impressive
energy
29.8%,
outstanding
stability
(50
cycles),
all
which
much
better
than
counterpart
electrocatalysts.
promotion
comes
from
electron‐rich
surface
nanoconfinement
microenvironment
mesostructured
synergies
enrich
nanozyme‐like
chemisorption
key
intermediates
thus
facilitates
through
8e
reaction
pathway.
Meanwhile,1D
MTs
practically
explored
Zn‐NO
battery,
delivering
25.85
µmol
cm
−2
FE
92.4%.
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Апрель 3, 2024
Groundwater
pollution
by
nitrate
has
is
a
major
concern
in
the
Tehran-Karaj
aquifer,
Iran,
where
wells
provide
up
to
80%
of
water
supply
for
population
more
than
18
million-yet
detailed
human
health
risks
associated
with
are
unknown
due
lack
accessible
data
adequately
cover
aquifer
both
place
and
time.
Here,
using
rich
dataset
measured
annually
75
wells,
we
mapped
non-carcinogenic
risk
between
2007
2018,
window
most
extensive
anthropogenic
activities
this
region.
Nitrate
concentration
varied
from
~
6
150
mg/L,
around
three
times
greater
standard
level
drinking
use,
i.e.
50
mg/L.
Samples
nitrate,
which
mainly
located
eastern
parts
study
region,
threatened
children's
health,
vulnerable
age
group,
almost
all
years
during
period.
Our
findings
revealed
that
number
samples
positive
adults
decreased
(17
wells)
2018
(6
wells).
Although
hypothesized
unsustainable
agricultural
practices,
growing
population,
increased
industrial
could
have
improved
sanitation
infrastructures
helped
prevent
intensification
compilation
beneficial
local
authorities
understand
high-risk
zones
formulation
policy
actions
protect
people
who
use
groundwater
other
purposes
densely
populated
Environmental Science & Technology,
Год журнала:
2024,
Номер
58(8), С. 3953 - 3965
Опубликована: Фев. 15, 2024
Elevated
groundwater
salinity
is
unsuitable
for
drinking
and
harmful
to
crop
production.
Thus,
it
crucial
determine
distribution,
especially
where
agricultural
water
requirements
are
largely
supported
by
groundwater.
This
study
used
field
observation
(
