The Science of The Total Environment,
Год журнала:
2023,
Номер
891, С. 164604 - 164604
Опубликована: Июнь 3, 2023
Low-income
countries
are
struggling
with
the
health
impacts
of
both
surface
and
groundwater
chemical
contamination.
Although
impact
biological
contaminants
on
children's
is
acknowledged,
long-term
effects
these
emerging
young
children
may
be
underestimated.
To
map
existing
evidence
water
contaminated
chemicals
(<5
years),
we
conducted
a
scoping
review
to
select
organize
relevant
literature.
Of
98
studies
in
review,
24
revealed
that
hazard
ratio
arsenic,
nitrates,
cadmium,
fluoride
(all
which
World
Health
Organisation's
list
10
public
concern)
was
higher
very
than
older
age
groups.
Anthropogenic
activities
(textile
manufacturing,
waste
disposal,
intensified
agriculture)
leading
contributors
release
used
for
drinking.
Three
major
pathways
contamination
exposure
were
confirmed:
maternal
transmission
during
pregnancy
breastfeeding,
early
school
years.
Children
exhibited
acute
chronic
disruptions
their
neurological,
skeletal,
reproductive,
endocrine
systems,
as
well
cumulative
carcinogenic
risks,
amongst
other
life-altering
consequences.
The
lack
research
contaminants'
low-income
worrisome,
increased
use
compound
issues
caused
by
problem
"legacy
chemicals."
Precautionary
principle
should
regulate
operation
industries
producing
robust
manner.
Evidence
from
producers
exporters
high-income
sufficient
warrant
action,
even
without
waiting
direct
harm
observed
countries.
Literature
recommends
prioritising
prevention
over
demand
side
treatment
or
finding
alternative
sources,
especially
water-scarce
areas
affected
climate
change.
Local
transnational
efforts
required
enforce
safer
industry
practices
prevent
further
quality
deterioration
Environmental Chemistry and Ecotoxicology,
Год журнала:
2024,
Номер
6, С. 293 - 302
Опубликована: Янв. 1, 2024
Fungal
bioremediation
represents
a
promising
and
sustainable
approach
to
addressing
environmental
pollution
by
exploiting
the
natural
metabolic
capabilities
of
fungi
degrade
detoxify
wide
array
pollutants.
This
review
provides
comprehensive
overview
mechanisms,
applications,
future
perspectives
fungal
bioremediation.
Fungi
are
uniquely
equipped
with
an
extensive
arsenal
enzymes,
including
laccases,
peroxidases,
hydrolases,
which
facilitate
breakdown
complex
organic
compounds,
heavy
metals,
xenobiotics
into
less
harmful
substances.
The
versatility
enables
their
application
across
various
contexts,
soil,
water,
air
remediation.
efficacy
is
demonstrated
in
its
ability
persistent
pollutants
such
as
polycyclic
aromatic
hydrocarbons
(PAHs),
polychlorinated
biphenyls
(PCBs),
petroleum
hydrocarbons,
well
immobilize
transform
metals
through
biosorption
bioaccumulation.
also
discusses
challenges
limitations
associated
bioremediation,
need
for
optimized
conditions
potential
ecological
impacts.
Future
research
directions
highlighted,
integration
omics
technologies
elucidation
pathways
development
biotechnological
innovations
scale
up
processes.
underscores
critical
role
remediation
emphasizes
continued
technological
advancements
harness
full
global
challenges.
Environmental Science & Technology,
Год журнала:
2022,
Номер
56(13), С. 9164 - 9181
Опубликована: Июнь 14, 2022
The
world
is
not
on
track
to
meet
Sustainable
Development
Goal
6.1
provide
universal
access
safely
managed
drinking
water
by
2030.
Removal
of
priority
microbial
contaminants
disinfection
one
aspect
ensuring
managed.
Passive
chlorination
(also
called
in-line
chlorination)
represents
approach
disinfecting
before
or
at
the
point
collection
(POC),
without
requiring
daily
user
input
electricity.
In
contrast
manual
household
methods
typically
implemented
use
(POU),
passive
chlorinators
can
reduce
burden
for
chlorine
dosing
and
enable
treatment
scales
ranging
from
communities
small
municipalities.
this
review,
we
synthesized
evidence
27
evaluations
(in
19
articles,
3
NGO
reports,
5
theses)
conducted
across
16
countries
in
communities,
schools,
health
care
facilities,
refugee
camps.
Of
identified,
majority
(22/27)
were
solid
tablet
granular
dosers,
remaining
devices
liquid
dosers.
We
identified
following
research
priorities
address
existing
barriers
scaled
deployment
chlorinators:
(i)
strengthening
local
supply
chains
through
decentralized
production,
(ii)
validating
context-specific
business
models
financial
sustainability,
(iii)
leveraging
remote
monitoring
sensing
tools
monitor
real-time
levels
potential
system
failures,
(iv)
designing
handpump-compatible
serve
many
reliant
handpumps
as
a
primary
source.
also
propose
set
reporting
indicators
future
studies
facilitate
standardized
technical
performance
sustainability
chlorinators.
addition,
discuss
limitations
chlorine-based
recognize
importance
addressing
chemical
contamination
supplies.
deployed
at-scale
have
elevate
quality
accessible
available
services
"safely
managed"
requirements.
The
photothermal
process
has
attracted
considerable
attention
in
water
treatment
due
to
its
advantages
of
low
energy
consumption
and
high
efficiency.
In
this
respect,
materials
play
a
crucial
role
the
process.
Particularly,
carbonaceous
have
emerged
as
promising
candidates
for
because
exceptional
performance.
While
previous
research
on
primarily
focused
evaporation
sterilization,
there
is
now
growing
interest
exploring
potential
effect-assisted
advanced
oxidation
processes
(AOPs).
However,
underlying
mechanism
effect
assisted
by
remains
unclear.
This
review
aims
provide
comprehensive
treatment.
It
begins
introducing
properties
materials,
followed
discussion
strategies
enhancing
these
properties.
Then,
application
materials-based
summarized.
includes
both
direct
such
well
indirect
that
AOPs.
Meanwhile,
various
mechanisms
are
Finally,
challenges
opportunities
using
proposed.
Analytical Chemistry,
Год журнала:
2025,
Номер
97(1), С. 65 - 74
Опубликована: Янв. 3, 2025
Addressing
the
global
challenge
of
ensuring
access
to
safe
drinking
water,
especially
in
developing
countries,
demands
cost-effective,
eco-friendly,
and
readily
available
technologies.
The
persistence,
toxicity,
bioaccumulation
potential
organic
pollutants
arising
from
various
human
activities
pose
substantial
hurdles.
While
high-performance
liquid
chromatography
coupled
with
high-resolution
mass
spectrometry
(HPLC-HRMS)
is
a
widely
utilized
technique
for
identifying
multitude
structures
single
elemental
composition
complicates
structural
identification.
current
HRMS
MS/MS
databases
often
can
provide
hits
known
molecules,
these
are
erroneous
or
misleading
when
authentic
standards
unavailable.
In
this
research,
machine-learning
algorithm
developed
support
elucidation
small
focus
on
(carbon,
oxygen,
hydrogen-based)
molecules
weighing
less
than
500
Da.
approach
relies
comparison
experimental
predicted
retention
possible
unknowns
which
an
was
obtained
by
HRMS.
A
promising
novelty
thereby
improved
removal
via
combination
information
two
reversed-phase-based
stationary
phases,
depicting
different
selectivities
(octadecylsilica,
C18
pentafluorphenylsilica,
F5).
study
translates
times
into
indices
instrument
independence
transferability
across
diverse
HPLC-HRMS
systems.
predictive
algorithm,
utilizing
data
molecular
descriptors,
accurately
predicts
proves
its
utility
eliminating
incorrect
formulas
through
2-stationary
phase
intersection-based
filtration.
Using
set
100
training
compounds
16
external
test
compounds,
Multiple
Linear
Regression
(MLR),
MLR-C18
MLR-F5
models
were
developed,
employing
most
influential
out
5666
screened.
achieves
precise
RI
predictions,
R2
=
0.97,
RMSE
36,
MAE
26,
while
MLR-F5,
though
slightly
accurate,
maintains
performance
0.96,
44,
34.
filtration
(within
±1.5σ)
showed
elimination
more
70%
impossible
given
composition.
model
further
implemented
identification
water
sample
prove
potential.
This
tool
holds
significant
promise
supporting
quality
management
sustainable
practices,
contributing
faster
unknown
micropollutants
water.
Environmental Quality Management,
Год журнала:
2021,
Номер
31(4), С. 75 - 97
Опубликована: Июль 18, 2021
Arsenic
is
a
toxic
carcinogen
mostly
found
in
subsurface
environments.
It
released
into
groundwater
via
natural
geological
and
hydrological
processes.
Consumption
of
such
contaminated
water
leads
to
serious
health
crises
for
mankind.
Developing
countries
South
Asia,
particularly
the
rural
regions,
have
been
severely
affected
by
this
environmental
phenomenon.
In
India,
government
authorities
implemented
several
remedial
measures
provide
safe
drinking
habitations,
ranging
from
utilization
surface
bodies
(e.g.,
rivers,
ponds,
etc.)
piped
supply
schemes
establishment
treatment
units.
This
article
attempts
review
scientific
literature
describing
critical
situation
India's
fourth
most
populous
state
West
Bengal
engineering
advances
made
mitigation.
The
issue
disposal
or
stabilization
arsenic
wastewaters
generated
units
often
not
emphasized
policy
discussions.
concluding
note,
proposes
innovations
necessary
achieving
effective
mitigation
region
that
involve
both
remediation
waste
management
tandem
sustainability.
The Science of The Total Environment,
Год журнала:
2023,
Номер
904, С. 166929 - 166929
Опубликована: Сен. 7, 2023
Reliance
on
groundwater
is
increasing
in
Sub-Saharan
Africa
as
development
programmes
work
towards
improving
water
access
and
strengthening
resilience
to
climate
change.
In
lower-income
areas,
supplies
are
typically
installed
without
quality
treatment
infrastructure
or
services.
This
practice
underpinned
by
an
assumption
that
untreated
suitable
for
drinking
due
the
relative
microbiological
safety
of
compared
surface
water;
however,
chemistry
risks
largely
disregarded.
article
systematically
reviews
results
from
160
studies
evaluate
potential
health
risk
two
case
countries:
Ethiopia
Kenya.
Most
evaluated
suitability,
focusing
priority
parameters
(fluoride,
arsenic,
nitrate,
salinity;
18
%),
pollution
impacts
(10
overall
suitability
(45
%).
The
remainder
characterised
general
hydrogeochemistry
(13
flow
dynamics
irrigation
(3
Only
six
(4
%)
reported
no
exceedance
thresholds.
Thus,
chemical
contaminants
occur
widely
groundwaters
used
but
not
regularly
monitored:
78
%
have
direct
consequences
ranging
hypertension
disrupted
cognitive
degenerative
disease,
81
aesthetic
indirect
influencing
perception
use
versus
water.
Nevertheless,
spatiotemporal
coverage
sampling
has
substantial
gaps
data
availability
bias
driven
a)
tendency
research
concentrate
areas
with
known
problems,
b)
analytical
capacity
limitations.
Improved
in-country
could
bolster
more
efficient
assessment
prioritisation
risks.
Overall,
this
review
demonstrates
universal
equitable
safe
(Sustainable
Development
Goal
target
6.1)
will
be
achieved
wider
implementation
treatment,
thus
a
shift
required
how
systems
designed
managed.