Abstract
Rapid
industrial
development
increases
soil
contamination
risks
in
suburban
agricultural
areas;
however,
the
extent
and
sources
of
heavy
metal(loid)s
pollution
during
this
process
are
not
well
understood.
This
study
investigated
concentrations,
spatial
distribution,
potential
(As,
Hg,
Cd,
Cr,
Pb)
wheat
samples
from
an
area.
The
found
that
Cd
was
main
pollutant
with
highest
enrichment
factor
15.9
21.6%
having
concentrations
exceeding
China's
limit
0.1
mg/kg.
Soil
As,
Pb
were
concentrated
northwest,
while
Cr
high
southeast.
is
more
severe
than
other
poses
a
slight
ecological
risk.
Monte
Carlo
simulations
showed
hazard
quotient
for
all
five
less
1,
being
highest.
1.35%
children
0.87%
adults
exceeded
carcinogenic
risk
level
0.54%
exhibited
above
threshold
Cr.
Children
most
sensitive
to
exposure
contaminated
areas,
metal(loid)s)
concentration
key
influencing
health
risks.
Source
apportionment
via
PCA-APCS-MLR
model
correlation
analysis
revealed
originated
activities
industrial-traffic.
assessed
pollution,
risks,
sources,
residents
consumption,
providing
evidence
managing
food
safety.
Ecotoxicology and Environmental Safety,
Год журнала:
2024,
Номер
283, С. 116815 - 116815
Опубликована: Авг. 1, 2024
Sediments
are
important
heavy
metal
sinks
in
lakes,
crucial
for
ensuring
water
environment
safety.
Existing
studies
mainly
focused
on
well-studied
leaving
gaps
understanding
pollution
patterns
specific
basins
and
influencing
factors.We
compiled
comprehensive
sediment
contamination
data
from
literature
public
datasets,
including
hydro-geomorphological,
climatic,
soil,
landscape,
anthropogenic
factors.
Using
advanced
machine
learning,
we
analyzed
typical
factors
to
infer
potential
sources
migration
pathways
of
pollutants
predicted
levels
with
limited
availability.
Our
analysis
pollutant
distribution
revealed
that
Cd
had
the
most
extensive
range,
severe
occurring
Huaihe
Yangtze
River
basins.
Furthermore,
identified
distinct
groups
driving
various
metals.
Cd,
Cr,
Pb
were
primarily
influenced
by
human
activities,
while
Cu
Ni
affected
both
natural
factors,
Zn
tended
more
towards
sources.
predictions
indicated
that,
addition
highly
polluted
areas,
risk
is
higher
Xinjiang,
Tibet
Qinghai,
higher.
presented
lower
risks,
except
Basins.
Temperature,
wind,
precipitation,
precipitation
rate,
cation
exchange
capacity
soil
significantly
impacted
sediments,
suggesting
particulate
migration,
rainfall
runoff,
erosion
likely
main
into
sediments.
Considering
pathways,
pollutants,
propose
strategies
such
as
low-impact
development
promoting
sustainable
transportation
mitigate
pollution.
This
study
provides
latest
insights
Chinese
lake
offering
references
policy-making
resource
management.
Heliyon,
Год журнала:
2024,
Номер
10(12), С. e32620 - e32620
Опубликована: Июнь 1, 2024
For
the
first
time,
different
pollution
indices
and
a
receptor
model
have
been
used
to
quantify
eco-environmental
health
risk
assessments
as
well
identify
sources
of
potentially
toxic
elements
in
soil
along
Barapukuria
Coal
Mine
(BCM).
Individual
include
enrichment
contamination
factors
showing
samples
are
moderately
highly
contaminated
by
arsenic,
cobalt,
chromium,
copper,
lead,
zinc
heavily
sulfur.
According
geo-accumulation
index,
there
is
significant
with
arsenic
(1.24
±
0.38),
lead
(1.49
0.58),
cobalt
sulfur
(1.63
0.38).
Modified
hazard
quotient
ecological
factor
values
also
suggest
low
moderate
environmental
hazards
from
same
elements.
The
nemerow
load
index
range
1.65
3.03,
0.82-1.23,
11-26,
77-165,
6.82-11.76
pollution,
among
other
synergistic
indices.
Health
assessment
indicates
that
iron
poses
lower
cancer
for
children
than
adults,
while
both
face
unacceptable
risks
inhaling
or
arsenic.
Principal
component
phylogenetic
cluster
analysis
extracted
multiple
linear
regression
absolute
principal
score
(APCS-MLR)
refer
fact
manganese,
iron,
titanium,
nickel
originated
geogenic
sources,
coal
mine
effluents
enrich
like
zinc,
uranium,
sulfur,
thorium,
phosphorous
sourced
agriculture.
In
addition,
anthropogenic
including
agriculture
activities,
could
pollute
ecosystem.
findings
crucial
regional
national
planners
devising
strategies
mitigate
element
areas.
Ecotoxicology and Environmental Safety,
Год журнала:
2024,
Номер
283, С. 116788 - 116788
Опубликована: Июль 27, 2024
Mangrove
forests
are
sources
and
sinks
for
various
pollutants.
This
study
analyzed
the
current
status
of
heavy
metal
arsenic
(As)
pollution
in
mangrove
surface
sediments
rapidly
industrializing
urbanizing
port
cities.
Surface
mangroves
at
Wulishan
Port
on
Leizhou
Peninsula,
China,
were
using
inductively
coupled
plasma
emission
spectrometry
(ICP-AES)
mass
(ICP-MS)
presence
Cr,
Pb,
Ni,
Zn,
Cd,
Cu,
As,
Hg.
The
Pollution
load
index,
Nemerow
Potential
ecological
risk
index
employed
to
evaluate
pollutant.
Multivariate
statistical
methods
applied
qualitative
analysis
pollutant
sources,
APCS-MLR
receptor
model
was
used
quantification.
indicated
following
results:
(1)
average
content
eight
pollutants
surpassed
local
background
level
but
did
not
exceed
Marine
Sediment
Quality
standard.
levels
across
four
sampling
areas
ranked
as
Ⅲ
>
Ⅳ
Ⅰ
Ⅱ.
area
Ⅱ
exhibited
relatively
lower
with
grain
size
dominated
by
sand,
which
conducive
adsorption
enrichment.
(2)
factor
cluster
analyses
identified
three
primary
contamination.
Pb
originated
from
nearby
industrial
activities
their
associated
wastewater,
suggesting
that
source
source.
Zn
stem
cement
columns
utilized
oyster
farming,
alongside
discharges
mariculture
pig
establishing
a
secondary
agricultural
Hg
ship
exhaust
burning
oil
vehicle
emissions
vicinity,
representing
third
traffic
(3)
results
demonstrated
industrial,
agricultural,
contributing
47.19
%,
33.13
13.03
respectively,
6.65
%
attributed
unidentified
sources.
Environmental Geochemistry and Health,
Год журнала:
2024,
Номер
46(9)
Опубликована: Июль 16, 2024
İzmir,
Turkey's
third
most
populous
city,
is
in
an
important
position
terms
of
both
agriculture
and
industry.
The
province,
which
contributes
9.3%
to
the
country's
industrial
production,
also
has
potential
olive
cultivation.
However,
until
now,
no
research
been
undertaken
analyze
content
trace
elements
(TEs)
soil
orchards
İzmir.
This
study
was
carried
out
determine
pollution
level
ecological
risks
TEs
soils
İzmir
reveal
their
sources
evaluate
health
risks.
Among
TEs,
average
only
Ni
(37.9
mg/kg)
exceeded
world
(29
mg/kg),
while
Cd
(0.176
upper
continental
crust
(0.09
mg/kg).
Enrichment
factor
revealed
that
there
significant
enrichment
for
73.6%,
11.6%
Cr
5.4%
orchards,
respectively,
due
polluted
irrigation
water
agrochemicals.
Similarly,
risk
indicated
were
moderate
considerable
48.8%
23.3%
respectively.
Absolute
principal
component
scores-multiple
linear
regression
(APCS-MLR)
model
showed
area
are
affected
by
agricultural
sources,
Al,
Co,
Cu,
Fe,
Mn,
Pb
Zn
originate
from
lithogenic
originates
mixed
sources.
Based
on
evaluation
methods,
non-carcinogenic
carcinogenic
effects
would
not
be
expected
residents.
provides
knowledge
evaluating
TE
serves
a
source
apportionment
human
other
regions.
Sustainability,
Год журнала:
2024,
Номер
16(4), С. 1673 - 1673
Опубликована: Фев. 18, 2024
Source
apportionment
and
risk
assessment
are
critical
for
making
effective
pollution
prevention
control
policies.
The
study
was
carried
out
to
assess
source-specific
ecological
human
health
risks
associated
with
heavy
metals
in
farmland
soils
Yingtan
City
based
on
results
of
receptor
models.
Multivariate
analysis
the
APCS-MLR
model
consistently
revealed
that
As,
Ni,
Cr
agricultural
may
be
mainly
derived
from
natural
sources,
while
contents
Cu,
Zn,
Cd,
Pb
have
been
significantly
elevated
by
activities.
According
outputs
model,
Cu
(34.3%),
Zn
(67.2%),
(75.1%),
Cd
(67.9%)
primarily
originated
industrial
activities
related
mineral
mining
non-ferrous
metal
smelting
processes.
indicated
sources
were
primary
contributor
total
risks,
posing
moderate
high
southern
mountainous
regions.
Natural
origins
played
a
significant
role
due
substantial
amounts
As
naturally
occurring
soils.
findings
could
guide
development
management
measures
