Scientific African,
Год журнала:
2020,
Номер
10, С. e00644 - e00644
Опубликована: Ноя. 1, 2020
The
integration
of
multiple
approaches
often
presents
a
better
and
valid
interpretation
water
quality.
In
the
present
study,
quality
indices
were
integrated
with
pollution
to
ascertain
status
drinking
sources
(streams,
springs,
dug
wells
boreholes)
in
Ojoto
area,
SE
Nigeria.
Water
samples
tested
for
physicochemical
properties
such
as
pH,
Na+,
K+,
Mg2+,
Ca2+,
Cl–,
SO42–,
HCO3–,
NO3–,
Fe,
Zn,
Ni,
Cr,
Pb.
Several
(e.g.,
Nemerow
index,
geoaccumulation
enrichment
factor,
modified
heavy
metal
index)
utilized
this
study
revealed
that
some
have
high
pollution,
hence
pose
environmental
risks.
Modified
index
indicated
is
threatened
conditions
departing
from
natural
or
desirable
levels.
However,
entropy-weighted
showed
about
57%,
8%,
4%,
4%
25%
are
excellent,
good,
average,
poor,
extremely
poor
qualities,
respectively.
Pollution
groundwater
(PIG)
confirmed
very
highly
polluted,
thus
unsuitable
purpose.
Quantification
contamination
(QoC)
PIG
models
successfully
demarcating
proportions
contribution
by
geogenic
human
activities
sources.
both
deterioration
mostly
influenced
anthropogenic
inputs.
Therefore,
change
lifestyle
pattern
adoption
adequate
management
policy
advised.
Geocarto International,
Год журнала:
2022,
Номер
37(25), С. 10407 - 10433
Опубликована: Янв. 26, 2022
The
use
of
contaminated
water
for
drinking
and
sanitary
purposes
can
be
detrimental
to
human
health.
In
this
article,
the
Human
Health
Risk
(HHRISK)
code
was
applied,
alongside
modified
heavy
metal
index
(MHMI),
synthetic
pollution
(SPI),
entropy-weighted
quality
(EWQI),
investigate
status,
ingestion,
dermal
health
risks
potentially
toxic
elements
(PTEs)
(Fe,
Zn,
Mn,
Pb,
Cr,
Ni)
in
resources
from
Umunya
area,
Nigeria.
Physicochemical
measurements
followed
standard
methods.
Results
MHMI,
SPI,
EWQI
revealed
that
about
60%
samples
had
low
were
considered
suitable
consumption,
while
40%
unsuitable.
Further,
cumulative
non-carcinogenic
risk
scores
indicated
pose
low-medium
high
child
adult
populations.
Contrarily,
results
carcinogenic
showed
6.67%
expose
users
risks,
whereas
93.33%
them
risks.
Although
there
are
agreements
between
both
populations
(regarding
risks),
it
is
worth
highlighting
children
higher.
Therefore,
study
area
more
vulnerable
Also,
due
ingestion
higher
than
contact.
Linear
regression
analysis
strong
agreement
indexical
models
While
artificial
neural
networks
multiple
linear
accurately
predicted
indices,
hierarchical
dendrograms
efficiently
classed
into
various
spatiotemporal
groups.
Total Environment Research Themes,
Год журнала:
2023,
Номер
6, С. 100039 - 100039
Опубликована: Апрель 8, 2023
The
paper
reviews
the
widely
used
heavy
metal
pollution
indices
(HPIs)
in
water,
soil,
and
sediments
presents
their
numerical
equation
application
various
fields.
HPIs
are
an
essential
efficient
tool
to
measure
contamination
environmental
system.
present
study
includes
twenty
from
for
comparative
with
ranges.
In
addition,
regional
distribution
of
publications
has
been
reviewed,
it
observed
that
68%
were
published
Asia,
followed
by
other
continents.
merits
demerits
each
index
have
presented,
a
comprehensive
method
selecting
appropriate
is
evaluated
order
better
interpret
level
soils
water
systems.
Among
quality
HPI,
HEI
HI
due
precise
scale,
easy
use,
less
limitations
provide
results.
single
indices,
EF,
Igeo,
CF
can
be
simple
manner
soil
assessment,
whereas
combined
PLI
INemerow
found
useful
as
apply
scale.
integrated
Cd
IAvg
apply,
there
no
limitation
metals.
Selection
geochemical
background
(GB)
must
established,
nature
fluctuation
GB
may
give
false
result.
ecological
risk
(ERI)
unique
represent
sediment
A
approach
guidelines
using
considering
different
sectors
developed
nation.
widespread
HPI
makes
more
accessible,
well-defined
result
presented.
