AQUA - Water Infrastructure Ecosystems and Society,
Journal Year:
2024,
Volume and Issue:
73(4), P. 707 - 721
Published: March 13, 2024
Abstract
Adama
City
grew
rapidly
due
to
its
proximity
Addis
Ababa,
resulting
in
increased
industrial,
urban
activities,
and
population
growth.
However,
this
expansion
has
resulted
drinking
water
shortages,
which
is
a
critical
community's
concern.
The
aim
of
study
was
determine
households’
willingness
pay
(WTP)
for
improved
supply
services
Adama,
with
factors
influencing
WTP.
To
quantify
WTP,
contingent
valuation
(CV)
technique
used
data
from
435
respondents
gathered
through
field
surveys,
KII,
HHs
interviews.
A
binary
logistic
model
utilized
examine
variables
that
have
significant
impact
on
analysis
revealed
several
independent
variables,
such
as
gender,
age,
marital
status,
education
level,
monthly
income,
additionally,
quantity,
quality,
availability,
affordability.
found
39.77
26.21%
residents
the
city
were
dissatisfied
quality
quantity
available
supply,
respectively.
discovered
92%
households
willing
an
additional
$7.26
USD
above
their
average
cost
$3.58
improve
delivery
services.
Factors
influence
WTP
should
be
considered.
study's
findings
can
help
legislators
companies
design
sustainable
projects
meet
community
needs.
Ecological Indicators,
Journal Year:
2023,
Volume and Issue:
154, P. 110893 - 110893
Published: Sept. 7, 2023
Water
scarcity
poses
economic
risks
and
affects
the
quality
of
national
regional
development.
The
risk
local
water
can
be
conveyed
to
downstream
economies
through
interregional
trade
for
potential
losses.
However,
most
previous
studies
focused
on
availability
adequate
freshwater
supplies,
ignoring
losses
associated
with
inadequate
quality.
With
aggravation
pollution,
caused
by
is
exacerbated.
This
study
incorporates
quantity
into
assessments,
revealing
virtual
transmission
pathways
cities
sectors
in
Yellow
River
Basin
(YRB)
China.
results
show
that
number
severe
stress
increases
from
13
53
when
considered.
Virtual
transfer
upstream
Henan
Shandong
Provinces,
high-risk
identified
considering
Key
intersectoral
are
identified.
validates
significance
factors
assessments
provides
a
perspective
policy
decisions
mitigate
thus
ensure
security
YRB.
Sustainable Water Resources Management,
Journal Year:
2023,
Volume and Issue:
9(6)
Published: Nov. 22, 2023
Abstract
Human
activities
threaten
the
integrity
of
watersheds.
We
aimed
to
investigate
impact
land
use
on
water
quality,
adopting
a
multiscale
approach.
collected
samples
from
twelve
streams
in
Southern
Brazil
and
conducted
limnological
analyses
(physical,
chemical,
biological)
during
dry
season.
used
quality
index
based
standards
Canada
Brazil.
Land
percentage
was
measured
two
groups
(local
scale
network
scale).
Environmental
variables
were
summarized
through
Principal
Component
Analysis,
we
organized
them
into
Linear
Models,
integrating
classes
terrain
slope
Multifit
formula.
Statistical
performed
using
R
software.
Results
indicated
contamination
by
lead,
chromium,
copper,
nitrogen,
Escherichia
coli
samples.
The
Canadian
Water
Quality
Guidelines
for
Protection
Aquatic
Life
resulted
an
ranging
23.3
47.3,
compared
Brazilian
Resolution
No.
357/2005
Class
2,
which
had
47.5
100.
This
disparity
is
attributed
more
rigorous
sensitive
monitoring
approach
adopted
guidelines.
Riparian
forests
are
up
50
m
wide
associated
with
improved
quality.
Agricultural
urban
main
contributors
degradation
area
extending
1000
watershed.
emphasize
importance
watershed
management
public
policies,
considering
not
only
riparian
forest
preservation,
but
also
human
throughout
It
crucial
prioritize
science-based
environmental
policies
strengthen
enforcement
prevent
increasingly
pronounced
collapses.
have
identified
urgency
reformulate
CONAMA
conservationist
ecosystem-oriented
approach,
as
well
propose
modifications
Forest
Code,
particularly
regarding
buffer
zones
permanent
preservation
areas.
Thus,
this
study
can
provide
insights,
such
incorporating
“effect
scale,”
enhance
resource
landscapes
heavily
influenced
action,
contributing
advancement
future
research
freshwater
ecosystems.
AQUA - Water Infrastructure Ecosystems and Society,
Journal Year:
2023,
Volume and Issue:
72(8), P. 1474 - 1498
Published: July 5, 2023
Abstract
The
sustainable
management
of
groundwater
resources
is
crucial
for
ecological
diversity,
human
health,
and
economic
growth.
This
study
employs
scientific
concepts
advanced
techniques,
including
the
analytic
hierarchy
process
(AHP)
Fuzzy-AHP,
to
identify
potential
zones
(GWPZs).
Thematic
maps
representing
drainage
density,
elevation,
soil,
geomorphology,
slope,
land
use
cover,
rainfall
are
used
delineate
GWPZs.
Both
techniques
employed
assign
weights
these
thematic
based
on
their
characteristics
water
potential.
revealed
that
in
investigated
area,
17.76
18.27%
final
GWPZs
(AHP
Fuzzy-AHP)
can
be
classified
as
having
poor
potential,
while
72.79
71.07%
categorized
moderate
Moreover,
9.45
10.69%
identified
high
using
AHP
Fuzzy-AHP
models,
respectively.
Receiver
operating
(ROCs)
analysis
validate
findings,
demonstrating
technique
achieves
an
accuracy
74%
identifying
region.
utilizes
best
method
derived
from
both
models
26
suitable
locations
artificial
recharge
sites.
reliable
findings
this
research
offer
valuable
insights
into
decision-makers
users
Kinnerasani
Watershed.
AQUA - Water Infrastructure Ecosystems and Society,
Journal Year:
2024,
Volume and Issue:
73(1), P. 34 - 56
Published: Jan. 1, 2024
Abstract
This
study,
conducted
in
the
Nanton
District
of
Northern
Ghana,
assesses
groundwater
quality
for
drinking
purposes
and
examines
hydrochemical
processes.
We
collected
analyzed
30
samples,
evaluating
their
physicochemical
properties,
microbial
content,
relationship,
hydrochemistry.
Utilizing
methods
such
as
weighted
arithmetic
water
index
(WQI),
Gibbs
Piper
diagrams,
Stiff
plots,
scatter
correlation
matrices,
we
aimed
to
comprehensively
understand
district.
Physicochemically,
our
findings
indicate
that
approximately
83.3%
is
safe
direct
consumption
without
treatment.
However,
contamination
was
prevalent
all
rendering
them
unsafe.
Parameters
iron,
manganese,
color,
turbidity,
nitrates,
sulfate,
pH
were
identified
potential
influencers
survival
groundwater.
Regarding
major
ions,
sodium
(Na+)
dominated
among
cations,
while
bicarbonate
(HCO3-)
primary
anion.
Water
types
categorized
Na-K-HCO3−,
Na-K-Cl-SO42−,
Ca-Mg-HCO3−,
mixed
water,
reflecting
composition.
Our
analysis
revealed
rock
weathering,
evaporation,
ion
exchange,
human
activities
influence
chemistry.
recommend
further
research
assess
availability
sustainable
development
Additionally,
continued
encouraged
enhance
understanding
between
coliform
bacteria
parameters.
