Ecologies,
Год журнала:
2022,
Номер
3(4), С. 530 - 538
Опубликована: Ноя. 15, 2022
The
ecotoxicological
condition
of
soils
around
mining
areas
is
most
often
unsatisfactory,
which
affects
entire
ecosystems
and
human
health.
This
research
sought
to
analyze
the
morphological,
agrochemical
properties,
content
heavy
metals
(Cd,
Cu,
Zn)
metalloids
(As)
located
in
a
floodplain.
study
was
conducted
within
city
Sibay
(Republic
Bashkortostan,
Russia).
soil
samples
were
collected
from
floodplains
rivers
Karagayly
Khudolaz.
According
morphological
studies,
cover
represented
by
Lithic
Leptosols,
Stagnic
Phaeozems,
Fluvisols.
results
showed
that
characterized
high
values
organic
matter,
potassium,
low
levels
phosphorus.
Soils
away
River
not
contaminated.
However,
floodplain
pertaining
urban
district
near
quarries
severe
anthropogenic
pollution,
disrupted
integrity
cover,
decreased
vegetation,
accumulating
labile
forms
metalloids.
highest
degree
pollution
observed
river
Khudolaz
where
all
elements
exceeded
maximum
permissible
concentration
(MPC)
level.
marked
an
increased
contamination
Zn:
exceeding
MPC
1.6
times.
With
trend
toward
arid
climate,
important
challenge.
Phycology,
Год журнала:
2023,
Номер
3(1), С. 186 - 201
Опубликована: Март 16, 2023
One
of
the
biggest
global
challenges
in
mining
industry
is
managing
risks
associated
with
contamination
by
potentially
toxic
elements
(PTEs)
resulting
from
their
activity.
The
oxidation
sulfides
main
cause
polluted
mine
drainage
through
leaching
PTEs
waste
and
galleries
to
water
systems.
Mine
can
be
highly
acidic
often
has
a
high
concentration
PTEs,
particularly
arsenic,
one
environment’s
most
elements.
endanger
ecosystem’s
equilibrium
raise
worries
about
human
animal
health.
Some
species
algae
which
naturally
present
waters,
such
as
Spirogyra
sp.
And
Chlorella
sp.,
have
capacity
for
absorbing
wastewater
may
thrive
harsh
environments.
As
result,
algal-based
systems
bioremediation
were
studied
carefully
analyzed,
since
remove
heavy
metals
hazardous
contaminants
already
been
shown
previous
studies.
Biofuels
derived
microalgal
biomasses
are
viable
alternative
fossil
fuels
that
lead
circular
bioeconomy.
This
study
reviews
analyses
Chlorophyta-based
application
waters
focusing
on
they
serve
model
better
understand
bioremediation.
Frontiers in Earth Science,
Год журнала:
2021,
Номер
9
Опубликована: Июль 19, 2021
Surface
sediment
samples
were
collected
from
different
streams
of
Awetu
Watershed
in
southwestern
Ethiopia.
Sediment
analyzed
for
As,
Cd,
Cr,
Pb,
and
Hg
levels
using
inductively
coupled
plasma
optical
emission
spectrometry.
The
heavy
metal
concentration
ranged
183.60
to
1,102.80
mg/kg
As
(mean
623.32
±
291.65
mg/kg),
4.40–303.20
Cd
(151.09
111.5
149.20–807.20
Cr
(375
212.03
485.60–3,748.80
Pb
(2005.94
954.99
mg/kg)
3.6–5.6
(4.64
0.59
mg/kg).
mean
the
followed
decreasing
order
>
Hg.
are
detected
at
high
concentrations
with
values
623.32,
375.00,
2,005.94
respectively.
A
low
level
(3.6
was
recorded
contamination
factor
(CF)
all
studied
metals
a
degree
(CF
<
1)
very
≤
6).
Mainly,
Dololo
Kito
show
6)
than
Boye
streams.
Specifically,
have
significantly
elevated
others.
Geo-accumulation
index
(Igeo)
shows
moderate
Hg;
uncontaminated
heavily
contaminated
by
Cr;
extreme
Cd.
Untreated
solid
waste,
garages
farmlands
sources
contamination.
Streams
receiving
wastewater
effluents
teaching
institutions
had
higher
concentrations.
Dumping
electronic
wastes
car
washing
discharges
also
identified
as
another
source
pollution.
Toxicology Reports,
Год журнала:
2023,
Номер
10, С. 580 - 588
Опубликована: Янв. 1, 2023
Shrimp
and
Crab,
important
sources
of
protein,
are
currently
being
adversely
affected
by
the
rising
industrialization,
which
has
led
to
higher
levels
heavy
metals.
The
goal
this
study
was
evaluate
health
risks
contamination
associated
with
nine
metals
(Cd,
Pb,
Cu,
Cr,
Zn,
Ni,
As,
Al,
Fe)
in
two
species
shrimp
(Macrobrachium
rosenbergii
Metapenaeus
monoceros)
one
crab
(Scylla
serrata)
that
were
collected
from
Khulna,
Satkhira,
Bagerhat
areas
Bangladesh.
Inductively
coupled
plasma-optical
emission
spectrometry
(ICP-OES)
used
for
study.
results
showed
all
metal
concentrations
samples
below
recommended
level,
indicating
ingestion
these
foods
would
not
pose
any
substantial
individuals.
To
non-carcinogenic
risks,
target
hazard
quotient
(THQ)
index
(HI)
determined,
cancer
risk
(TR)
utilized
carcinogenic
risks.
From
point
view,
crustaceans
obtained
sites
non
-
toxic
(THQ
HI
<
1),
long-term,
continuous
intake
is
unlikely
significant
hazards
(TR
=
10-7-10-5)
either
or
effects.
Toxicology Reports,
Год журнала:
2022,
Номер
9, С. 1603 - 1613
Опубликована: Янв. 1, 2022
Toxic
metal
contamination,
distribution
and
risk
were
evaluated
in
the
sediments
of
three
lagoons
used
for
fish
farming
central
region
Peru.
The
toxic
metals
sediment
was
following
descending
order
Zn
>
V
Ni
Cu
Pb
As
Cr
Co
Cd
Sb.
Contamination
factor
(Cf)
geoaccumulation
index
(Igeo)
values
Co,
Cr,
Cu,
Ni,
Pb,
Sb,
indicated
low
contamination
moderate
contamination.
pollution
load
(PLI)
ranged
from
0.3856
to
0.5622;
indicating
no
appreciable
modified
degree
(mCd)
corroborated
this
result.
potential
ecological
(Ri)
Tranca
Grande
Pomacocha
revealed
a
Tipicocha
risk.
HI
<
1
that
non-carcinogenic
adverse
effects
negligible.
In
adults,
Total
carcinogenic
(TCR)
As,
Cd,
less
than
1.00E-04,
significant
children,
TCR
showed
similar
behavior
with
exception
As.
Therefore,
considering
production
domestic
consumption
export
is
carried
out
these
lagoons,
it
important
continue
monitoring
protect
health
ecosystems
human
health.
Water,
Год журнала:
2021,
Номер
13(5), С. 613 - 613
Опубликована: Фев. 26, 2021
Anthropogenic
activities
performed
in
the
Ecuadorian
Amazon
have
released
potentially
toxic
elements
(PTEs)
into
rivers,
causing
severe
environmental
pollution
and
increasing
risk
of
exposure
to
residents
surrounding
areas.
This
study
aims
carry
out
a
human
health
assessment
using
deterministic
probabilistic
methods
estimate
hazard
index
(HI)
total
cancer
(TCR)
related
multi-pathway
PTEs
polluted
rivers.
Concentrations
Al,
Cd,
Cr,
Cu,
Hg,
Ni,
Pb,
Zn
surface
water
sediment
samples
from
rivers
on
were
considered
assess
potential
adverse
effects.
As
result,
estimations
non-cancer
through
waters
sediments
above
safety
limit.
A
sensitivity
analysis
identified
concentration
duration
(ED)
as
two
most
important
variables
for
assessment.
The
highest
receptors
was
incidental
ingestion
dermal
contact
routes.
According
estimation,
threshold
specific
locations.
reveals
which
population
is
exposed.
information
can
be
used
baseline
develop
public
strategies
reduce
anthropogenic
