Arabian Journal of Chemistry,
Год журнала:
2023,
Номер
16(9), С. 105041 - 105041
Опубликована: Июнь 3, 2023
A
systematic
study
was
executed
in
the
Wadi
Fatimah
basin,
Saudi
Arabia
to
appraise
hydrochemical
processes,
contamination
sources
and
water
quality
using
an
integrated
approach
namely
geochemical
methods,
multivariate
statistical
analyses
indices.
In
this
aquifer,
average
value
of
electrical
conductivity
total
dissolved
solids
is
4292
µS/cm
2747
mg/l,
respectively.
The
predominant
facies
are
CaMgCl
followed
by
NaCl.
Further,
76%
(hardness),
51%
(major
ions
NO3−)
15%
(F−)
samples
surpassed
World
Health
Organization-prescribed
drinking
limit.
index
(DWQI)
also
reveal
that
25%
46%
not
appropriate
for
application.
Spatial
maps
major
ions,
hardness
DWQI
depict
deteriorated
from
upstream
downstream
extreme
values
exist
downstream.
Gibbs
plots,
ionic
ratios,
Pearson
correlation
coefficient
principal
component
analysis
justify
groundwater
chemistry
predominantly
affected
evaporation,
evaporite
dissolution
ion
exchange
reactions
mineral
weathering.
High
NO3−
originates
nitrification,
irrigation
return
flow
wastewater
recharge.
Groundwater
F−
derived
weathering
fluoride
minerals
enhanced
evaporation.
This
emphasizes
proper
treatment
required
before
distribution
various
uses
basin.
Geocarto International,
Год журнала:
2023,
Номер
38(1)
Опубликована: Май 2, 2023
The
majority
of
people
living
on
earth
rely
groundwater
as
their
primary
supply
water
for
daily
needs.
However,
human
activities
continuously
threaten
this
natural
resource.
In
an
attempt
to
unravel
the
extent
impact
human-related
physicochemical
characteristics
in
Nnewi
and
Awka
urban
clusters
(Nigeria),
several
techniques
were
integrated
study.
Groundwater
samples
warm
acidic
nature.
Concentrations
SO42-,
NO3-,
PO43-,
Cl-,
HCO3-,
Ca2+,
Mg2+,
Na+
K+
within
set
benchmarks.
nutrient
pollution
index
(ranging
from
0.060
0.745),
nitrate
(varying
between
−0.999
−0.790)
0.057
0.630)
estimated
anthropogenic
contamination
showed
low
characteristics.
health
risks
due
ingestion
skin
absorption
nitrate-contaminated
computed
six
age
groups
(6–12
months,
5–10
years,
10–15
15–20
20–60
years
>60
years)
risk
values
that
<
1,
implying
chronic
humans.
cumulative
total
hazard
ranged
0.006
0.787
with
a
mean
value
0.167.
Chemometric
analyses
geochemical
plots
revealed
relationships
variables
sources.
Chadha's
plot
55%
Ca2+-Mg2+-Cl-
waters,
predominating
over
Na+-Cl-
Ca2+-Mg2+-HCO3-
waters.
Bivariate
multivariate
also
indicated
impact.
Furthermore,
principal
component
analysis
R-type
hierarchical
clustering
confirmed
chemistry
quality
mostly
influenced
by
geogenic
processes
than
acts.
Conclusively,
influence
is
low.
These
findings
would
be
useful
future
monitoring
both
clusters.
Scientific Reports,
Год журнала:
2023,
Номер
13(1)
Опубликована: Авг. 11, 2023
High
concentrations
of
potentially
toxic
elements
(PTEs)
in
potable
water
can
cause
severe
human
health
disorders.
Present
study
examined
the
fitness
groundwater
for
drinking
purpose
based
on
occurrence
nine
PTEs
a
heavy
pilgrim
and
tourist
influx
region
Garhwal
Himalaya,
India.
The
analyzed
were
observed
order
Zn
>
Mn
As
Al
Cu
Cr
Se
Pb
Cd.
Apart
from
As,
other
within
corresponding
guideline
values.
Spatial
maps
produced
to
visualize
distribution
area.
Estimated
pollution
indices
non-carcinogenic
risk
indicated
that
investigated
is
safe
purpose,
as
hazard
index
was
<
1
all
samples.
Assessment
cancer
Cr,
Cd,
also
low
risks
associated
with
use,
values
acceptable
range
≤
×
10-6
10-4.
Multivariate
statistical
analyses
used
describe
various
possible
geogenic
anthropogenic
sources
resources
although
contamination
levels
found
pose
no
serious
risk.
However,
present
recommends
stop
discharge
untreated
wastewater
establish
cost-effective
well
efficient
treatment
facility
nearby
work's
findings
are
vital
they
may
protect
massive
population
contaminated
consumption.
Moreover,
it
help
researchers,
governing
authorities
supplying
agencies
take
prompt
appropriate
decisions
security.
Arabian Journal of Chemistry,
Год журнала:
2022,
Номер
15(12), С. 104342 - 104342
Опубликована: Окт. 13, 2022
Human
activities
and
climate
may
have
an
impact
on
the
water
quality
of
reservoirs.
Therefore,
present
research
aims
to
use
entropy
index
assessment
technique
analyze
features
main
supply
reservoirs
as
well
investigate
effect
parameters
In
this
study,
total
non-carcinogenic
health
risks
from
various
exposure
paths
were
estimated
for
adults
children.
The
major
in
Kohgiluyeh
Boyer-Ahmad
province
was
typically
poor
unfit
human
consumption.
Besides,
risk
higher
males
(0.958–1.497)
children
(1.065–1.664)
than
females
(0.879–1.374)
according
assessments.
Among
factors
under
magnesium
nitrate
had
highest
influence
risk.
Finally,
sensitivity
each
affecting
assessed
using
Sobel
analysis.
results
indicated
that
concentration
(Cw)
Ingestion
Rate
(IR)
most
sensitive
oral
state,
while
Cw
fraction
skin's
surface
area
(F)
more
dermal
state.
