Trends in Environmental Analytical Chemistry,
Год журнала:
2024,
Номер
42, С. e00230 - e00230
Опубликована: Фев. 28, 2024
An
understanding
of
global
environmental
pollution
requires
sensitive
high-resolution
analytical
methods
to
detect
contaminants
at
trace
level
concentrations
(≤ppb),
accurately
assess
potential
effects
associated
with
chronic
low-level
exposure.
Additionally,
the
focus
risk
assessments
has
evolved
consider
not
only
total
but
also
bioavailable
fractions.
Diffusive
gradient
in
thin-film
passive
samplers
(DGTs)
can
be
deployed
a
variety
matrices
accumulate
through
diffusion.
Due
their
simple
design,
DGTs
manipulated
and
adjusted
fit
experimental
or
monitoring
purpose
contaminant
interest.
Mercury
(Hg)
is
ubiquitous
element
concern
that
accumulates
biota
concentrates
food
chain
as
organic
methylmercury.
Existing
reviews
on
Hg
research
mention
promising
successful
tool
quantify
flux
labile
species
over
broad
range
matrices.
This
first
comprehensive
review
current
literature
describing
development
deployment
mercury
specific
DGTs.
Given
multi-facetted
nature
this
research,
discusses
impact
DGT
configuration
speciation
interpretation
data
addresses
application
bioavailability
studies.
Environmental Sciences Europe,
Год журнала:
2020,
Номер
32(1)
Опубликована: Окт. 2, 2020
Abstract
Background
Environmental
contamination
by
mercury
is
and
will
continue
to
be
a
serious
risk
for
human
health.
Pollution
of
the
terrestrial
environment
particularly
important
as
it
place
life
food
production.
This
publication
presents
review
literature
on
issues
related
pollution
environment:
soil
plants
their
transformations.
Results
Different
forms
atmospheric
Hg
may
deposited
surfaces
way
wet
dry
processes.
These
sequestered
within
compartments
or
emitted
back
into
atmosphere,
relative
importance
these
processes
dependent
form
Hg,
surface
chemistry,
environmental
conditions.
On
land
surface,
deposition
mainly
occurs
in
oxidized
(Hg
2+
),
its
transformations
are
associated
primarily
with
oxidation–reduction
potential
biological
chemical
methylation.
The
pollutants
ground
low
vegetation
3–5
times
lower
than
that
forests.
estimation
emissions
from
plants,
which
occur
0
form,
very
difficult.
Generally,
largest
amounts
tropical
regions,
followed
temperate
zone,
lowest
levels
polar
regions.
Areas
can
ranked
according
size
follows:
forests
>
other
areas
(tundra,
savannas,
chaparral)
agricultural
grassland
ecosystems;
devoid
emit
more
those
plants.
In
high
pollution,
such
near
mines,
content
much
higher
areas.
Conclusions
Mercury
recognized
toxic,
persistent,
mobile
contaminant;
does
not
degrade
becomes
because
volatility
element
several
compounds.
Atmospheric
continues
one
most
problems
modern
world.
general
conclusions
were
drawn
presented
this
paper.
Journal of Hazardous Materials,
Год журнала:
2023,
Номер
455, С. 131575 - 131575
Опубликована: Май 6, 2023
Contaminant
containment
measures
are
often
necessary
to
prevent
or
minimize
offsite
movement
of
contaminated
materials
for
disposal
other
purposes
when
they
can
be
buried
left
in
place
due
extensive
subsurface
contamination.
These
include
physical,
chemical,
and
biological
technologies
such
as
impermeable
permeable
barriers,
stabilization
solidification,
phytostabilization.
is
advantageous
because
it
stop
contaminant
plumes
from
migrating
further
allow
pollutant
reduction
at
sites
where
the
source
inaccessible
cannot
removed.
Moreover,
unlike
options,
do
not
require
excavation
substrates.
However,
regular
inspections
monitor
mobilization
migration.
This
review
critically
evaluates
sources
persistent
contaminants,
different
approaches
remediation,
various
physical-chemical-biological
processes
containment.
Additionally,
provides
case
studies
operations
under
real
simulated
field
conditions.
In
summary,
essential
preventing
contamination
reducing
risks
public
health
environment.
While
periodic
monitoring
necessary,
benefits
make
a
valuable
remediation
option
methods
feasible.
The Science of The Total Environment,
Год журнала:
2025,
Номер
959, С. 178257 - 178257
Опубликована: Янв. 1, 2025
Within
the
UN
Decade
on
Ecosystem
Restoration
(2021-2030)
framework,
a
Nature-based
Solution
(NbS)
using
Zostera
noltei
transplants
was
tested
to
restore
historically
contaminated
intertidal
area.
In-situ
transplantation
relied
patches
of
seagrass
and
sediment
from
Donor
meadow
its
evolution
monitored
for
two
years.
The
evaluation
transplant
success
encompassed
coverage
area,
biomass,
tissue
mercury
(Hg)
accumulation,
photosynthetic
efficiency.
successful,
with
gradual
increases
in
area
target
indicating
adaptation
local
conditions
already
after
first
year.
Although
some
significant
differences
were
observed
biomass
Hg
concentration
over
time,
similar
translocation
factors
suggest
plant
has
effective
defensive
mechanisms
prevent
accumulation
cellular
damage.
Additionally,
normal
seasonal
pattern
parameters
indicates
that
contamination
is
not
impeding
performance
growth,
suggesting
this
NbS
as
viable
restoration
strategy.
Applied Geochemistry,
Год журнала:
2024,
Номер
170, С. 106060 - 106060
Опубликована: Июнь 8, 2024
Mercury
(Hg)
is
one
of
the
most
toxic
global
pollutants
continuing
concern,
posing
a
severe
threat
to
human
health
and
wildlife.
Due
its
mobility,
Hg
easily
transported
through
atmosphere
directly
deposited
onto
water,
sediments
soils
or
incorporated
in
biota.
In
groundwater,
concentrations
can
be
influenced
by
either
geogenic
anthropogenic
sources,
causing
critical
effects
such
as
damage
respiratory
nervous
systems.
The
sources
include
rocks
minerals
containing
(cinnabar,
organic-rich
shales,
sulfide-rich
volcanic)
geothermal
fluids.
combustion
fossil
fuels,
gold
mining,
chemical
discharges
from
dental
preparation,
laboratory
activities
legacy
sites.
average
background
concentration
<
0.01
μg/L.
mobilized
into
groundwater
due
changes
redox
potential
(Eh),
with
reaching
above
WHO
drinking
water
standard
1
Under
reducing
conditions,
microbial
activity
facilitates
reductive
dissolution
FeOOH,
release
sorbed
Hg2+
groundwater.
released
may
reduced
Hg0
dissolved
organic
matter
Fe2+.
stability
species
(Hg0,
Hg22+,
Hg2+,
MeHg)
controlled
Eh
pH.
While
high
low
pH
conditions
mobilize
solid
aqueous
phases,
soil
binding
ability
sequestrate
via
adsorption
goethite,
hematite,
manganese
oxides,
hydrous
ferric
restricting
it
leaching
During
contamination,
remediation
using
nanomaterials
pumice-supported
nanocomposite
zero-valent
iron,
brass
shavings,
polyaniline-Fe3O4-silver
diethyldithiocarbamate,
CoMoO/γ-Al2O3
has
been
documented.
These
promising
emerging
technologies
utilize
principle
remove
up
99.98
%
highly
contaminated
This
study
presents
an
overview
remediation,
complex
biogeochemical
processes,
hydrogeochemical
conceptual
model
concerning
Hg's
fate,
transport.
