ACS Omega,
Год журнала:
2024,
Номер
9(18), С. 19770 - 19785
Опубликована: Апрель 23, 2024
Over
the
decades,
rise
in
nitrate
levels
ecosystem
has
posed
a
serious
threat
to
continuous
existence
of
humans,
fauna,
and
flora.
The
deleterious
effects
increasing
nitrates
have
led
adverse
health
environmental
implications
form
methemoglobinemia
eutrophication,
respectively.
Different
pathways/routes
for
syntheses
perovskites
their
oxides
were
presented
this
review.
In
recent
times,
electrocatalytic
reduction
emerged
as
most
utilized
technique
conversion
into
ammonia,
an
industrial
feedstock.
According
published
papers,
efficiency
various
used
achieved
high
Faradaic
98%.
Furthermore,
studies
shown
that
there
is
need
improve
chemical
stability
during
scale-up
applications,
well
scalability
applications.
TrAC Trends in Analytical Chemistry,
Год журнала:
2024,
Номер
172, С. 117566 - 117566
Опубликована: Янв. 30, 2024
The
analysis
of
microplastics
(MPs)
in
terrestrial
environments
and
the
evaluation
their
environmental
risk
has
gained
great
attention,
owing
to
increasing
evidence
for
widespread
presence
soils
freshwater
sediments
globally.
Once
environment,
MPs
undergo
abiotic
biotic
processes
which
alter
properties
integrity:
this
process
is
called
"aging"
implications
fate
these
contaminants,
morphology
surface
chemistry.
Aging
may
also
affect
analytical
assessment
samples:
samples
likely
contain
aged
MPs,
while
methods
are
generally
established
using
pristine
plastics
validation.
This
can
lead
uncertainties
quantification
characterization.
critical
review
summarizes
current
trends
simulation
characterization
MP
aging
laboratory
conditions,
highlighting
limitations
knowledge
gaps.
It
discusses
challenges
induced
by
samples,
providing
directions
toward
possible
solutions.
Environmental Technology & Innovation,
Год журнала:
2024,
Номер
35, С. 103729 - 103729
Опубликована: Июнь 26, 2024
The
interaction
between
microplastics
(MPs)
and
pollutants
is
crucial
for
assessing
the
environmental
risk
of
MPs.
It
necessary
to
pay
attention
adsorption/desorption
behavior
antibiotics
on
MPs
due
their
potential
role
in
antibiotic
resistance.
When
MPs-loaded
are
ingested
by
organisms,
they
enter
gastrointestinal
tract
undergo
desorption,
leading
corresponding
toxic
effects.
Existing
literature
primarily
focuses
adsorption
behavior,
while
there
a
lack
systematic
generalizations
desorption
or
combined
effects
organisms.
Therefore,
this
article
provides
review
mechanisms,
biological
tract.
Desorption
suggests
that
characteristics
(aging
hydrophobicity)
components
fluid
(digestive
enzyme
species
pH)
can
also
have
effect
desorption.
Moreover,
summarizes
induced
MPs-antibiotics,
demonstrating
either
enhance
reduce
plants,
microorganisms,
aquatic
animals.
Since
methodological
uniformity
relevance
natural
environment
main
shortcomings
existing
literature,
future
research
should
focus
actual
water
given
region
studying
at
gene,
protein,
metabolic
levels.
This
direction
expected
provide
valuable
references
insights
evaluating
antibiotics.
Industrial & Engineering Chemistry Research,
Год журнала:
2024,
Номер
63(9), С. 3947 - 3961
Опубликована: Фев. 21, 2024
The
problem
of
microplastics
(MPs)
in
the
environment
has
been
an
emerging
concern
to
world
recent
times.
This
is
because
migration
MPs
identified
as
deleterious
culprits
entire
ecosystem
and
by
extension
may
cause
a
decrease
life
expectancy
quality
humans,
fauna,
flora.
threat
seriously
militating
against
continuous
existence
well-being
ecosystem.
Therefore,
this
research
attempts
provide
solution
global
through
application
amino-functionalized
zeolite
series/phosphoric
acid-coffee
waste
biochar
(AFZ)
for
removal
polystyrene
solutions,
drinking
water,
wastewater.
Findings
from
showed
that
AFZ
removed
4.78
4.85
mg
g–1
solutions
at
20
50
°C,
respectively.
was
achieved
combination
chemisorption
physisorption
mechanisms
via
hydrophobic
interactions
between
π-electrons
sp2
carbon
orbital
π–π
aromatic
moieties
electrostatic
attraction
MPs,
Surface
characterization
before
after
its
uptake
revealed
functional
such
C–H,
C–O,
C=C,
N–H,
Al–O,
Si–O
majorly
responsible
adsorption
process.
Hence,
potential
treat
MP-contaminated
water
Environmental Chemistry and Ecotoxicology,
Год журнала:
2024,
Номер
6, С. 259 - 268
Опубликована: Янв. 1, 2024
Microplastics
(MPs)
are
emerging
pollutants
that
constitutes
a
very
serious
environmental
nuisance
and
menace
to
the
globe
in
last
decade.
The
damages
from
MPs
include
ecological
imbalance
of
marine
environment,
flora,
fauna
these
yet
be
understood
African
environment.
sustainable
development
goals
14
15
(SDGs
#14
#15)
seek
address
challenges
combating
sustainability
terrestrial
lives
respectively.
Understanding
pollution
dynamics
environment
is
crucial
globally
particular
Africa
soon.
Hence,
it
imperative
arrest
this
challenge
as
swiftly
possible
before
collapse
entire
biomes.
have
been
detected
several
matrices;
soil,
air,
aquatic
environments,
plants,
fishes,
animals,
humans.
Their
different
source
routes:
ingestion,
inhalation,
dermal
contact
contribute
an
adverse
effect
(toxicity)
all
spheres
life.
To
humans,
limits
their
movement,
leads
shedding
scales,
inhibits
growth,
suppresses
immune
system,
causes
inflammation,
coagulation,
also
blood
cell
toxicity
among
others,
on
long-run
mortality
was
noted
review.
There
physical,
chemical
biological
transformation
microplastics
age,
leading
toxicity,
mobility,
great
interaction.
This
has
contributed
high
MP
intake
by
fish
other
animals.
For
reason,
researchers
should
delve
into
simpler
cheaper
ways
analyzing
its
presence
develop
remediation
strategies
curb
Environmental Processes,
Год журнала:
2024,
Номер
11(1)
Опубликована: Март 1, 2024
Abstract
Microplastics
research
in
South
Africa
has
focused
on
marine
and
coastal
areas,
with
limited
studies
reporting
microplastics
freshwaters.
To
address
this
gap,
we
conducted
study
to
investigate
the
presence,
abundance,
physical
characteristics,
chemical
composition
of
surface
water
Vaal
River,
one
most
important
freshwater
systems
Africa.
Twenty-two
samples
were
collected
along
60
km
middle
part
river
using
a
55
μm
plankton
net.
Samples
treated
by
acid
digestion,
MPs
separated
density
separation.
Physical
identification
was
performed
Nikon
stereomicroscope,
identified
Raman
spectroscopy.
observed
all
0.13
2.52
particles/m
3
concentrations.
ranged
size
from
0.06
–
4.95
mm,
more
than
89%
less
2
81%
fragments
(39%)
fibers
(42%).
numerous
colours,
which
green,
black,
blue
dominant,
representing
22%,
19%,
18%,
respectively.
Chemical
analysis
revealed
polymer
types
as
high-density
polyethylene
(HDPE),
polypropylene
(PP),
low-density
(LDPE).
In
addition,
two
colourants,
pigment
yellow
83
carbon
detected.
This
provides
new
data
microplastic
occurrence
characteristics
River
system
offers
baseline
for
future
monitoring.
Our
findings
confirm
that
is
under
real
threat
contamination,
could
impact
its
role
significant
Highlights
•
prevalent
River.
Fibrous,
small-sized,
coloured
abundant.
Polymers
HDPE,
LDPE,
PP.
