American Journal of Chemical Engineering,
Journal Year:
2025,
Volume and Issue:
13(1), P. 1 - 13
Published: Jan. 31, 2025
This
study
aims
to
assess
the
factors
and
geochemical
processes
controlling
groundwater
quality
in
prefecture
of
Bassar.
It
is
a
major
yam
tubers
pre-colonial
West
African
iron
production
center
Togo
but
with
limited
investigations
on
chemistry.
Conventional
hydrochemical
techniques
mass
balance
calculations,
intervariables
correlation,
factor
analysis
principal
component
methods
were
applied
chemical
database
ions
heavy
metals
concentrations
twenty
borehole
water
samples.
These
samples
collected
during
dry
season
analyzed
following
AFNOR
standard
for
examination
water.
The
results
showed
fresh
circumneutral
types
pH
values
between
6.7
7.5
an
average
7.1
EC
280
1148
µS/cm
691
µS/cm.
All
parameters
comply
WHO
drinking
guideline
value
except
Arsenic
content
5
%
samples,
suggesting
potential
health
risks
residents
relying
raw
purposes.
Anions
cations'
contributions
mineralization
are
order
HCO<sub>3</sub><sup>-</sup>>
Cl<sup>-</sup>
>
SO<sub>4</sub><sup>2-</sup>
NO<sub>3</sub><sup>-</sup>
Ca<sup>2+
</sup>>
Mg<sup>2+</sup>
Na<sup>+</sup>
K<sup>+</sup>,
respectively.
main
facies
mixed
cations-HCO<sub>3</sub>
types,
followed
by
accessory
Ca-HCO<sub>3</sub>,
Mg-HCO<sub>3</sub>,
Ca-Mg-Cl,
Mg-Na-HCO<sub>3</sub>,
under
control
water-rock
interaction
mechanisms
human
activities
influence
from
agriculture
practices.
silicate
minerals
hydrolysis,
carbonate,
soil
salts
dissolution,
sorption,
cations
exchange
thermodynamic
equilibrium
kaolinite,
muscovite,
K-feldspar,
smectites
such
as
Mg-montmorillonite
solid
phases.
Fe/Mn-(hydr)oxide
phases
aquifer
matrix
exert
significant
mobility
As
Sb
originating
geogenic
sources
area.
provides
insight
into
quality,
baseline
tool
security
concerning
trace
constituents
Bassar
prefecture.
Discover Environment,
Journal Year:
2025,
Volume and Issue:
3(1)
Published: Jan. 20, 2025
Groundwater
arsenic
(As)
contamination
is
a
serious
environmental
and
public
health
concern
worldwide.
Adverse
outcomes
poor
socio-economic
conditions
made
the
scenario
worse
in
Ganga–Brahmaputra–Meghna
(GBM)
plains,
including
Bihar
state
of
India.
Recently,
population
has
been
experiencing
high
risks
As
exposure
from
drinking
water
foods.
However,
limited
studies
are
available
on
groundwater
As,
its
transfer
to
foodstuffs,
associated
effects
for
state.
Therefore,
this
review
addressed
current
subsequent
edible
plants,
local
Bihar.
Apart
other
remediation
options,
potential
bioremediation
was
also
explored
as
an
effective
way
mitigation.
Among
four
major
agro-climatic
zones
Bihar,
numbers
As-affected
districts
situated
Zone
I
II,
respectively.
The
risk
cancers
human
organs
like
skin,
bladder,
kidney,
liver,
lung
increasing
with
prevalence
levels,
particularly
near
north
Ganga
river.
A
significant
correlation
found
between
maximum
levels
blood.
Food
items
wheat
could
play
role
apart
water.
Still,
mitigation
approach
solely
focused
water,
measures
necessary
reduce
foodstuffs.
Although
several
indigenous
bacterial
strains
were
promising
further
understanding
essential
their
application.
Moreover,
policies
regulations
needed
based
spatial
variation
contamination,
conditions,
demographic
characteristics.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: April 25, 2024
Despite
decades
of
research,
the
influence
climate
on
export
dissolved
organic
carbon
(DOC)
from
soil
remains
poorly
constrained,
adding
uncertainty
to
global
models.
The
limited
temporal
range
contemporary
monitoring
data,
ongoing
reorganisation
and
confounding
anthropogenic
activities
muddy
waters
further.
Here,
we
reconstruct
DOC
leaching
over
last
~14,000
years
using
alpine
environmental
archives
(two
speleothems
one
lake
sediment
core)
across
4°
latitude
Te
Waipounamu/South
Island
Aotearoa
New
Zealand.
We
selected
broadly
comparable
palaeoenvironmental
in
mountainous
catchments,
free
anthropogenically-induced
landscape
changes
prior
~1200
C.E.
show
that
warmer
temperatures
resulted
increased
allochthonous
through
Holocene,
most
notably
during
Holocene
Climatic
Optimum
(HCO),
which
was
some
1.5-2.5
°C
than
late
pre-industrial
period-then
decreased
cooler
mid-Holocene.
propose
temperature
exerted
key
control
observed
doubling
tripling
HCO,
presumably
via
temperature-mediated
vegetative
C
inputs
microbial
degradation
rates.
Future
warming
may
accelerate
with
implications
for
cycle
water
quality.
C – Journal of Carbon Research,
Journal Year:
2024,
Volume and Issue:
10(3), P. 69 - 69
Published: Aug. 6, 2024
Carbon
nanotubes,
as
carbon
allotropes
distinguished
by
their
intricate
structures
and
exceptional
physicochemical
properties,
have
demonstrated
substantial
progress
in
recent
years
across
diverse
domains,
including
energy
production,
chemical
synthesis,
environmental
preservation.
They
exhibit
notable
attributes
such
high
thermal
stability,
superior
adsorption
capacity,
a
specific
surface
area,
rendering
them
superb
catalyst
supports.
Particularly
electrochemical
storage,
CNTs
are
extensively
employed
supercapacitor
electrodes
owing
to
elevated
electrical
conductivity,
mechanical
robustness,
electrocatalytic
prowess,
which
facilitate
significant
storage
capabilities.
Their
pore
architecture
reactive
sites
make
functionalized
nanotubes
well
suited
for
synthesizing
composite
materials
with
components,
ideal
sequestering
dioxide
from
both
atmospheric
indoor
environments.
This
review
presents
comprehensive
examination
of
nanotube
synthesis
methodologies,
encompassing
vapor
deposition,
arc
discharge,
laser
ablation,
evaluates
impacts
on
the
structural
functional
properties
nanotubes.
Furthermore,
this
article
underscores
applications
fields
fuel
cells,
photocatalysis,
ammonia
dry
methane
reforming,
Fischer–Tropsch
supercapacitors.
Despite
considerable
potential
manufacturing
processes
remain
costly,
impeding
large-scale
industrial
production.
concludes
addressing
challenges
fabricating
composites
outlining
future
development
prospects.
