Vestnik of the Russian agricultural science,
Год журнала:
2024,
Номер
4, С. 84 - 89
Опубликована: Сен. 2, 2024
This
article
discusses
the
problem
of
heavy
metal
detection
in
soil
and
its
impact
on
vegetation.
Based
experience
foreign
domestic
research,
this
global
fundamental
problems
challenges,
modern
methods
detection,
as
well
prospects
for
further
research
new
challenges
facing
scientific
community.
The
aim
study
is
to
identify
established
metals
soil,
such
spectral
analysis
reflectance
spectra
plant
parts.
review
summarizes
results
experimental
studies
confirming
effectiveness
combined
sampling
spectrometry
method
estimating
concentration
feasibility
using
measure
pollution.
World
confirms
expediency
approaches
determine
analyze
their
have
practical
application
field
ecology,
agriculture
nature
protection,
allow
effectively
controlling
level
pollution
taking
measures
elimination.
Ecological Indicators,
Год журнала:
2024,
Номер
166, С. 112460 - 112460
Опубликована: Авг. 8, 2024
The
excessive
presence
of
heavy
metals
(HMs)
in
soil
poses
a
significant
threat
to
both
ecosystems
and
human
health.
Consequently,
there
is
compelling
need
for
quantitative
analysis
HMs
concentration
the
prediction
potential
contamination.
In
this
study,
58
surface
samples
were
systematically
collected
from
11
different
townships
Luolong
County.
Using
ArcGIS
10.7,
fishing
net
interpolation
resampling
was
performed
obtain
model
data.
GeoDetector
employed
determine
key
driving
factors
their
interrelationships
affecting
composition.
Subsequently,
influential
with
higher
explanatory
power
Random
Forest
(RF)
generate
contamination
map.
results
revealed
that
arsenic
(As),
cadmium
(Cd)
lead
(Pb)
exceeded
risk
screening
values
by
8.62%,
10.34%,
respectively.
identified
such
as
elevation,
annual
average
precipitation,
distance
nearest
river,
geomorphic
type
natural
sources,
geological
roads,
proximity
mining
sites,
per
capita
income
inhabitants,
total
potassium
content
organic
matter
anthropogenic
sources
significantly
influencing
spatial
distribution
soil.
interactions
among
primary
increased
capacity.
By
using
RF
predict
main
HMs,
it
found
areas
high
probability
As
mainly
concentrated
northern,
central
southeast
regions
Regions
Cd
exceeding
value
primarily
east,
northeast
few
northern
County,
while
likelihood
Pb
southwestern
This
study
integrates
stratified
heterogeneity
random
forest
mitigate
overfitting
HM
contamination,
common
issue
traditional
machine
learning
methods.
approach
essential
elucidating
environmental
drivers
pollution,
predicting
high-risk
complex
conditions
limited
data,
ensuring
safety
stability
agricultural
production
well
well-being
local
residents.
Toxics,
Год журнала:
2025,
Номер
13(1), С. 59 - 59
Опубликована: Янв. 15, 2025
Heavy
metal
pollution
in
agricultural
soils
poses
a
serious
threat
to
food
security.
Therefore,
it
is
crucial
conduct
risk
assessments
and
issue
early
warnings
about
high
levels
of
contamination
for
the
sustained
prosperity
agriculture.
To
assess
risks,
identify
sources,
quantify
amounts,
determine
extent
from
seven
heavy
metals,
as
well
provide
warnings,
78
soil
samples
were
collected
farmed
lands
Songnen
Plain
Jilin
Province.
The
average
concentrations
Zn,
Cu,
Mn,
Pb,
Cd,
Ni,
As
found
be
2.05,
1.5,
0.2,
1.09,
2.68,
1.53,
1.17
times
higher
than
background
values
Chinese
soils,
respectively.
Source
analysis
indicated
that
toxic
Pb
originates
vehicle
exhaust
emission,
while
Ni
are
attributed
industrial
activities.
Zn
likely
associated
with
practices,
Mn
predominantly
stems
natural
environmental
sources.
geo-accumulation
index
suggests
relatively
high,
accumulation
Pb.
Meanwhile,
single-factor
indicates
elevated
Cd.
Potential
ecological
assessment
reveals
certain
areas
within
Changchun
Baicheng
cities
exhibit
risks.
Notably,
Cd
has
highest
potential
(RI)
metals
warrants
special
attention.
By
analyzing
annual
pollutant
accumulations,
predictions
can
made
content
four
Plain,
enabling
issuance
regarding
findings
suggest
without
proactive
measures
mitigate
Songyuan
will
reach
severe
by
2031
2029,
Research Square (Research Square),
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 31, 2025
Abstract
Wetlands
provide
many
ecosystem
services,
such
as
mitigating
pollution,
attenuating
flooding
and
drought
extremes,
providing
habitat
for
species.
However,
studies
quantifying
potential
wetland
sequestration
of
heavy
metals
an
service,
particularly
across
large
spatial
extents,
are
sparse.
We
utilized
data
from
the
United
States
Environmental
Protection
Agency’s
National
Wetland
Condition
Assessment
to
estimate
anthropogenic
metal
(Pb,
Cu,
Cr)
storage
in
upper
40
centimeters
soils
conterminous
(CONUS).
Large
amounts
Cu
Cr
stored
soil
CONUS,
at
299.5
±
73.2
(95%
confidence
interval)
483.4
132.1
thousand
metric
tons
(MT),
respectively.
Anthropogenic
Pb
totaled
394.3
265.2
MT,
amount
roughly
equivalent
7%
lead-based
gasoline
additives
used
U.S.
between
1927–1994,
largest
widespread
source
landscape.
Between
15–22%
Cr,
mass
within
cm
CONUS
is
anthropogenic.
also
estimated
loading
normalize
by
area.
related
complex
interaction
landscape
features.
national-scale
variations
obscure
which
features
dominant
retention
processes.
In
most
cases,
redox
state,
tidal
influence,
hydrologic
regime,
geographical
region
do
not
substantially
impact
estimates
soils.
More
detailed
regional
research
may
help
disentangle
these
relationships
further
support
management.
Heavy
metals
in
agricultural
soils
pose
a
significant
environmental
and
health
risk,
impacting
both
soil
quality
food
safety.
These
contaminants
primarily
originate
from
anthropogenic
sources,
such
as
industrial
activities,
improper
waste
disposal,
the
excessive
use
of
pesticides
fertilizers.
Natural
including
mineral
weathering,
also
contribute
to
accumulation
heavy
soil.
Influencing
factors,
pH,
organic
matter
content,
climate
conditions,
can
affect
mobility
bioavailability
these
metals,
exacerbating
risks.
The
primary
concern
include
lead
(Pb),
arsenic
(As),
cadmium
(Cd),
mercury
(Hg),
chromium
(Cr)
(di
pa
sure
mga
metals),
which
accumulate
chain
through
crop
uptake.
Understanding
distribution,
influencing
factors
is
crucial
for
mitigating
risks
associated
with
their
presence
soils.
Effective
management
strategies,
remediation,
controlled
fertilizers,
monitoring
programs,
are
essential
reducing
exposure
humans
ecosystems
toxic
metals.
