Advances in Environmental and Engineering Research,
Journal Year:
2023,
Volume and Issue:
04(04), P. 1 - 26
Published: Nov. 23, 2023
This
paper
reviews
the
arsenic
in
environment.
Arsenic
contamination
is
currently
one
of
leading
environmental
problems
worldwide.
The
(As)
cycle
subject
this
article
because
As
an
element
with
a
significant
impact
on
living
beings
and
its
interrelation
other
biogeochemical
cycles.
closed,
so
trace
returns
to
sediments
where
it
can
be
changed
chemical
state
by
micro-organisms
present
soils.
In
addition,
some
minerals
contribute
sequestration
retention
As.
interferes
critical
cycles
such
as
sulfur,
phosphorus,
iron,
manganese,
antimony.
Another
factor
consider
determining
content
interference
organic
matter
soil,
forms
very
stable
compounds
On
hand,
aquatic
conditions,
high
concentration
anaerobiosis,
reducing
environment
created
that
facilitates
mobilization
sediments.
Environmental Science & Technology,
Journal Year:
2022,
Volume and Issue:
57(1), P. 222 - 230
Published: Dec. 19, 2022
Historical
industrial
activities
have
resulted
in
soil
contamination
at
sites
globally.
Many
of
these
are
located
along
coastlines,
making
them
vulnerable
to
hydrologic
and
biogeochemical
alterations
due
climate
change
sea-level
rise.
However,
the
impact
dynamics
on
contaminant
mobility
tidal
environments
has
not
been
well
studied.
Here,
we
collected
data
from
pressure
transducers
wells,
multi-level
redox
sensors,
porewater
samplers
an
As-contaminated
site
adjacent
a
freshwater
channel.
Results
indicate
that
sharp
gradients
exist
conditions
vary
seasonal
timescales
sub-daily
water
level
fluctuations
channel
groundwater–surface
interactions.
The
As
Fe2+
concentrations
decreased
during
periods
net
discharge
changes
were
greater
than
variations
both
Eh
concentrations,
indicating
impacts
mechanism
stronger
those
table
fluctuations.
A
conceptual
model
describing
hydro-biogeochemical
coupling
is
presented.
These
findings
broad
implications
for
understanding
rise
natural
anthropogenic
coastal
solutes.
