Waste Management Bulletin,
Journal Year:
2024,
Volume and Issue:
2(3), P. 145 - 153
Published: July 24, 2024
This
study
analyzed
the
water
quality
of
Yamuna
river
in
Prayagraj
across
nine
locations
where
sampling
was
done
upstream,
downstream
and
middle
stream
from
May
2019
to
April
2020
using
fourteen
parameters.
Quarterly
samples
showed
good
Water
Quality
Index
(WQI)
values
for
summer
(95.19),
monsoon
(77.28),
winter
(90.77),
but
a
decline
spring
(102.11)
due
religious
activities
observed.
Inductively
coupled
plasma
mass
spectroscopy
suggested
high
concentration
Ca2+,
Mg2+,
K,
P
river.
Principal
Component
Analysis
revealed
9
significant
factors
(eigen
value
>0.5)
covering
25.13
–
93.89
%
variance.
Strong
correlations
included
TDS-EC
(0.853)
Ca2+
Mg2+
(1.00)
The
correlation
between
parameters
generated
by
principal
component
analysis
that
main
affecting
vary
all
seasons.
Based
on
indicators,
anthropogenic
are
accountable
deteriorate
water.
Therefore,
pollution
status
need
be
made
publicly.
Water,
Journal Year:
2021,
Volume and Issue:
13(16), P. 2258 - 2258
Published: Aug. 18, 2021
Water
quality
has
deteriorated
in
recent
years
as
a
result
of
rising
population
and
unplanned
development,
impacting
ecosystem
health.
The
water
parameters
Qaroun
Lake
are
contaminated
to
varying
degrees,
particularly
for
aquatic
life
consumption.
For
that,
the
objective
this
work
is
improve
assessments
surface
determine
different
geo-environmental
affecting
lake
environmental
system
utilizing
weighted
arithmetic
index
(WAWQI)
four
pollution
indices
(heavy
metal
(HPI),
(MI),
contamination
(Cd),
(PI),
that
enhanced
by
multivariate
analyses
cluster
analysis
(CA),
principal
component
(PCA),
support
vector
machine
regression
(SVMR).
Surface
samples
were
collected
at
16
locations
from
during
2018
2019.
Thirteen
physiochemical
measured
used
calculate
(WQIs).
WQIs
such
WAWQI,
HPI,
MI,
Cd,
PI
revealed
degree
contamination,
with
respect
utilization.
unsuitable,
high
polluted,
seriously
affected
an
environment.
findings
significantly
impacted
Al,
moderately
Cd
Cu,
while
slightly
Zn
due
uncontrolled
releases
domestic
industrial
wastewater.
Furthermore,
increasing
salinity
accelerates
deterioration
Therefore,
sewage
drainage
wastewater
should
be
treated
before
discharging
into
lake.
SVMR
models
based
on
presented
highest
performance
alternative
method
predict
WQIs.
example,
calibration
(Val.)
validation
performed
best
assessing
R2
(0.99)
(0.97–0.99),
respectively.
Finally,
combination
WQIs,
CA,
PCA,
approaches
could
employed
assess
Lake.
International Journal of Environmental Research and Public Health,
Journal Year:
2022,
Volume and Issue:
19(17), P. 10502 - 10502
Published: Aug. 23, 2022
This
study
investigated
the
spatial
distribution,
contamination,
potential
ecological
risks
and
quantities
of
pollutant
sources
six
heavy
metals
(HMs)
in
sediments
47
rivers.
The
catchments
rivers
are
situated
Poland,
but
some
them
located
Slovakia,
Czech
Republic,
Germany.
Cluster
analysis
was
applied
to
analyze
distribution
Cd,
Cr,
Cu,
Ni,
Pb,
Zn
river
sediments.
Moran
I
Getis-Ord
Gi*
statistics
were
calculated
reveal
pattern
hotspot
values.
Principal
component
(PCA)
positive
matrix
factorization
(PMF)
used
identify
pollution
sources.
Furthermore,
geochemical
indices
sediment
quality
guidelines
allowed
us
assess
contamination
toxic
effects
on
aquatic
biota.
results
showed
that
1/3rd
rivers,
HM
concentrations
indicate
contamination.
EF,
PLI,
MPI
at
a
rather
low
level
2/3rd
analyzed
Only
individual
may
HMs
have
Spatial
autocorrelation
using
statistic
revealed
random
dispersed
PCA
identified
two
HMs’
delivery
environment.
originate
from
point
non-point
sources,
while
Cd
dominant
natural
origin.
PMF
three
pollution.
Among
them,
urban
responsible
for
Cu
delivery,
agricultural
Zn,
industrial
Ni
Cr.
Moreover,
no
relationship
between
catchment
land-use
patterns
content
Journal of Sea Research,
Journal Year:
2023,
Volume and Issue:
193, P. 102380 - 102380
Published: April 19, 2023
Water
quality
comprehensive
evaluation
is
an
essential
technical
measure
for
water
environment
management
and
treatment.
The
previous
research
methods
were
often
insufficient
studying
black-sticking
bodies'
formation
transformation
mechanisms.
In
view
of
this,
the
single
pollution
index
method
identification
(Iwq)
used
to
evaluate
characteristics
rivers;
main
factors
sources
watershed
determined
by
principal
component
analysis
(PCA),
vertical
stratification
bodies
analyzed.
results
showed
that
total
nitrogen
(TN)
values
pollutants
in
typical
rivers
Pearl
River
Delta
higher
than
class
V
standard,
ammonia
(NH3−N)
level
was
second-highest.
TN
concentration
ranges
from
4.27
19.83
mg/g,
NH3-N
2.44
15.37
mg/g.
addition,
monitoring
15
rivers,
11
them
inferior
surface
water,
including
five
rivers'
categories
black-stinking
bodies.
This
may
be
related
process
self-purification
pollutant
transport,
densely
populated
areas
are
subject
discharge
domestic
sewage
industrial
sewage.
PCA
extracted
three
components
(PC),
accounting
88.825%
variance,
with
first
third
PCs
controlled
human
activities
second
PC
influenced
natural
sources.
There
a
more
apparent
here
Delta,
DO
important
factor
affecting
distribution
chemical
oxygen
demand
(COD),
NH3-N,
TN,
phosphorus
(TP),
sulfide,
Ferrum
(Fe),
manganese
(Mn).
severe
lack
deep
led
elevated
levels
Fe,
Mn,
gases
such
as
hydrogen
sulfide
released
under
anaerobic
conditions,
resulting
eutrophication
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Feb. 4, 2024
Abstract
The
escalating
presence
of
heavy
metals
(HMs)
in
the
Panjkora
River
water
and
their
impact
on
fish
pose
a
significant
challenge
to
both
ecological
community
human
health.
Consequently,
study
was
conducted
with
primary
aim
elucidating
influence
health-related
issues.
To
address
this,
concentrations
metals,
including
arsenic
(As),
cadmium
(Cd),
iron
(Fe),
manganese
(Mn),
lead
(Pb),
zinc
(Zn),
species
Crossocheilus
diplocheilus
were
investigated
across
various
locations
within
area.
quantification
HMs
concentration
carried
out
utilizing
an
atomic
absorption
spectrophotometer.
highest
found
as
0.060
mg/L
for
Pb
lowest
Fe,
whereas
2.028
mg/kg
As.
Human
health
risk
associated
eating
evaluated
by
using
indices
(HRI)
non-carcinogenic
risks
targeted
cancer
(TR)
carcinogenic
risks.
values
index
greater
than
1
except
Fe
(0.0792),
Zn
(0.782),
Mn
(0.541).
mean
HRI
>
recorded
As
(62.99),
Cd
(26.85),
(10.56).
This
implies
that
consumption
from
river
is
not
safe
up
some
extent.
Similarly,
TR
value
As,
Cd,
2.8
$$\times
{10}^{-2}$$
×10-2
,
1.6
×
$${10}^{-3}$$
3
which
showed
risk.
There
detected
River.
government
must
implement
adaptive
measures
this
issue
pollution
Additionally,
there
need
further
extensive
prolonged
research
studies
context.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: April 30, 2024
River
Danro
in
Garhwa
(India)
plays
a
vital
role
as
significant
source
of
surface
water
and
crucial
tributary
the
North
Koel
River,
ultimately
joining
Ganga
Basin.
Serving
both
urban-industrial
rural
areas,
region
faces
challenges,
including
sand
mining
near
Belchampa
Ghat.
This
study
aimed
to
assess
physicochemical
heavy
metals
pollution
at
nine
sampling
locations,
utilizing
Overall
Index
Pollution
(OIP),
Nemerow
(NPI),
Heavy
Metal
(HPI).
OIP
values
indicated
excellent
quality
(0.71)
non-monsoon
slight
(6.28)
monsoon.
NPI
ranged
from
0.10
1.74
0.22
(clean)
27.15
(heavily
polluted)
HPI
results
suggested
groundwater
contamination,
particularly
by
lead.
Principal
component
analysis
(PCA)
geospatial
mapping
showed
similar
outcomes,
highlighting
influence
adjacent
land
use
on
quality.
Recognizing
significance
sustaining
life,
livelihoods,
economic
growth,
recommends
implementing
measures
like
floating
bed
remediation
regulatory
actions
for
effective
river
management.
The
acknowledges
weaknesses
current
practical
assessment
methods
contamination.
These
make
it
difficult
put
plans
cleaning
up
controlling
contamination
into
action.
Because
this,
future
research
developing
new
in-place
techniques
should
focus
creating
better
ways
measure
how
cleanup
is.
