Arab Gulf Journal of Scientific Research,
Journal Year:
2023,
Volume and Issue:
42(4), P. 1392 - 1413
Published: Nov. 11, 2023
Purpose
Using
a
combination
of
the
geographical
information
system
(GIS)
and
Canadian
water
quality
index
(WQI),
current
study
sought
to
provide
long-term
general
assessment
Shatt
Al-Arab
River
(SAAR),
focusing
on
its
suitability
for
living
organisms.
Likewise,
SPSS
statistics
was
used
develop
nonlinear
WQI
regression
model
area.
Design/methodology/approach
The
required
four
decades
data
collection
some
environmental
characteristics
river
water.
After
that,
calculate
conduct
spatial
analysis.
Eight
variables
in
total,
including
temperature,
dissolved
oxygen,
potential
hydrogen
ions,
electrical
conductivity
(EC),
biological
oxygen
demand,
turbidity,
nitrate
phosphate,
were
chosen
WQI.
Findings
Throughout
periods,
values
varied
from
55.2
79.83,
falling
into
categories
(marginal)
three
(fair),
with
sixth
period
(2007–2008)
showing
most
decline.
present
research
demonstrated
that
high
concentration
phosphates,
EC
values,
minor
changes
other
factors
are
major
causes
decline
quality.
variations
ecological
variables'
overlap
senior
contributor
general.
Notably,
using
GIS
conjunction
has
shown
be
very
effective
reducing
time
effort
spent
investigating
while
obtaining
precise
findings
at
lowest
possible
expense.
Calibration
validation
developed
showed
this
had
perfect
estimate
value.
Due
flexibility
impartiality,
recommends
proposed
predict
Originality/value
Even
though
SAAR
been
subject
numerous
studies,
is
only
investigation
done
evaluate
Water Science & Technology,
Journal Year:
2024,
Volume and Issue:
89(5), P. 1382 - 1400
Published: Feb. 22, 2024
Abstract
The
present
study
aimed
to
assess
the
impact
of
anthropogenic
stressors
on
physico-chemical
characteristics
and
water
quality
River
Ganga
employing
a
GIS-based
approach
in
middle
Gangetic
Plain
at
Patna,
India.
After
survey,
sand
mining,
bridge
construction,
disposal
untreated
domestic
sewage
wastes
were
selected
as
major
stressors.
A
total
48
samples
collected
pre-monsoon
post-monsoon
seasons
2022
analyzed
for
16
parameters,
namely
temperature
(WT),
pH,
electrical
conductivity
(EC),
dissolved
solids
(TDS),
turbidity,
oxygen
(DO),
biological
demand
(BOD),
hardness
(TH),
Ca2+,
Mg2+,
Na+,
K+,
Cl-
SO42−
ions,
following
standard
protocols.
WQI
was
calculated
using
Weighted
Arithmetic
Water
Quality
Index
(WAQWI)
method
spatial
maps
created
ArcGIS
software.
result
revealed
significant
seasonal
variation
several
physico-
chemical
parameters
except
K+
TA
(p
>
0.05).
ANOVA
BOD
COD
Ghagha
Triveni,
whereas
nitrate
Gai
Ghat
reference
sites,
respectively.
(WQI)
deterioration
by
60%
season.
HCA
that
mostly
governed
TDS,
TH,
TA,
EC.
Water Environment Research,
Journal Year:
2025,
Volume and Issue:
97(4)
Published: April 1, 2025
Abstract
Bottled
drinking
water
of
numerous
brands
from
different
countries,
including
Bangladesh,
Malaysia,
Australia,
India,
Singapore,
Norway,
Japan,
Vietnam,
and
Taiwan,
were
studied
using
three‐dimensional
fluorescence
(excitation–emission
matrix,
EEM)
spectroscopy
multivariate
parallel
factor
analysis
(PARAFAC)
model.
Fluorescent‐dissolved
organic
matter
(DOM)
components
such
as
microbial
processed
tyrosine‐,
fulvic
acid
(M)‐,
tryptophan‐like
had
maximum
intensity/concentration
at
70.8%,
16.7%,
12.5%
bottled
samples,
respectively.
The
total
intensity
all
fluorescing
DOM
was
minimum
in
one
the
Australia
Unlike
concentrations
comparable
to
or
higher
than
groundwater,
freshwater,
marine
Taiwan.
concentration
Escherichia
coli
quantified
its
significant
correlation
equation
with
microbial‐processed
component.
Apart
60%
20%
samples
Malaysia
remaining
countries
medium
very
high‐risk
because
E.
signatures.
adverse
health
impacts
previously
identified
over‐acceptable‐limit
mineral
are
discussed.
also
strengthened
doubts
about
efficiency
conventional
treatment
techniques
biofilm
control.
Economic
indicators
affirmed
that
willingness
proper
management
knowledge
necessary
ensure
safe
besides
budget
labor
wages.
PRACTITIONER
POINTS
Higher
protein‐like
humic‐like
abundance
Risks
for
availability
high
Adverse
overlimit
Pb,
Al,
PO
4
3−
minerals
Bangladeshi
Inefficiency
control
Importance
wage,
willingness,
Water Environment Research,
Journal Year:
2024,
Volume and Issue:
96(5)
Published: May 1, 2024
Abstract
The
aim
of
the
study
is
to
investigate
leaching
fluorescent
dissolved
organic
matter
(fDOM)
from
microplastics.
In
addition,
this
identifies
connection
between
fDOM
and
microplastics
in
aquatic
environment.
Three‐dimensional
excitation–emission
matrix
identified
five
fluorophores,
that
is,
peak
A,
M,
T,
T
uv
,
W
parallel
factor
analysis
modeling
components,
tryptophan‐like,
p
‐hydroxy
acetophenone,
humic
acid
(C‐like),
detergent‐like,
fulvic
(M‐like)
urban
surface
water.
Mimic
experiments
using
commonly
used
synthetic
plastic
(like
microplastics)
Mili‐Q
water
under
solar
radiation
dark
environments
demonstrate
release
plastic.
Two
fluorophore
peaks
were
observed
at
Ex/Em
=
250/302
nm
260/333
for
expanded
polystyrene
polymer
one
low‐density
polyethylene.
Fluorophore
component
intensity
exhibited
notable
associations
with
These
findings
indicated
characteristics
dynamics
are
influenced
by
Practitioner
Points
Fluorescent
matters
waters.
Expanded
(EPS)
had
shown
two
fluorophores
Em/Ex
260/333.
Low‐density
polyethylene
(LDPE)
settings
Ecotoxicology and Environmental Safety,
Journal Year:
2024,
Volume and Issue:
277, P. 116377 - 116377
Published: April 23, 2024
The
crucial
role
of
the
fluorescent
components
dissolved
organic
matter
(DOM)
in
controlling
antimony
(Sb)
mobilization
groundwater
has
been
confirmed.
However,
molecular
signatures
contributing
to
Sb
enrichment
DOM
remain
unknown.
This
study
aims
investigate
origins
and
compositions
different
high-Sb
aquifers
(Sb-mining
no-Sb-mining
aquifer),
as
well
compare
mechanisms
for
migration.
findings
showed
that
concentrations
Sb-mining
aquifer
exhibited
a
positive
correlation
with
lignin-
tannin-like
molecules
characterized
by
high
O/C
low
H/C
ratios,
indicating
an
increased
abundance
aromatic
higher
Humification
Index
SUV-absorbance
at
254
nm,
compared
aquifer.
Correspondingly,
complexation
competitive
adsorption
were
considered
predominate
formation
on
In
addition,
abundances
bioreactivity
may
facilitated
migration
via
electron
transfer
native
outcomes
this
investigation
offer
novel
insights
into
mechanism
influenced
molecule
level.
