Locomotion (behavioural) test in the terrestrial oligochaetes Eisenia exposed to carbamate model substance
Ecotoxicology,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 15, 2025
Abstract
This
study
examines
earthworm
behaviour
by
combining
locomotion-based
motility
assessments
with
evaluations
of
acetylcholinesterase
(AChE)
inhibition.
Motility
analysis
revealed
significant
differences
in
the
two-dimensional
movement
patterns
earthworms
exposed
to
carbamate
pesticides
compared
those
control
group,
indicating
altered
trajectories.
AChE
assays
demonstrated
a
pronounced
inhibitory
effect
on
enzyme
activity
relative
unexposed
individuals.
Both
univariate
and
multivariate
analyses
confirmed
that
pesticide
contaminant
significantly
affects
as
well
quantitative
directional
characteristics
movement.
These
results
suggest
behavioural
testing
is
valuable
tool
for
understanding
impact
non-target
organisms
environment.
Язык: Английский
Ecotoxicological impact of deactivated asbestos-cement on soil ecosystems
Waste Management,
Год журнала:
2025,
Номер
202, С. 114825 - 114825
Опубликована: Апрель 24, 2025
The
effects
of
thermally
deactivated
asbestos
cement
(DAC)
on
the
soil
ecosystem
were
evaluated
using
model
organism
Folsomia
candida
(Collembola).
Two
materials
obtained
by
treating
slates,
commonly
used
for
roofing,
at
1100
°C
under
oxidizing
conditions
(Red
DAC)
and
1150
reducing
(Green
DAC).
Ten
age-synchronized
juveniles
F.
exposed
to
DAC
powder:soil
mixtures
in
ratios
1:1
1:10
both
types.
After
28
days,
adults
counted
assess
treatment
effects.
results
indicate
distinct
toxicity
profiles.
Red
powder
did
not
induce
adult
lethality
tested
concentrations;
however,
a
significant
reduction
juvenile
production
was
observed
higher
concentration
(1:1).
In
contrast,
Green
caused
concentration,
with
no
produced.
Both
contain
high
percentage
silica
glass
(∼40%
weight),
well-known
insect
dehydration
agent
mechanical
insecticide.
At
highest
may
cause
detrimental
juveniles,
which
are
more
sensitive
than
adults.
also
contains
8.5%
lime
(CaO),
an
antimicrobial
insecticidal
that
can
disrupt
pH.
combination
silica-induced
lime-mediated
alkalinity
account
lethal
These
findings
reinforce
need
proper
recycling.
While
deactivation
effectively
eliminates
its
hazard
built
environment,
improper
disposal
or
contamination
pose
ecological
risks.
Recycling
into
stable
matrices,
such
as
ceramics
mortar,
minimizes
environmental
while
promoting
circular
economy.
Язык: Английский
Soil environmental quality and risk assessment under combined organic pollution in a typical sewage irrigated area
E3S Web of Conferences,
Год журнала:
2025,
Номер
628, С. 01015 - 01015
Опубликована: Янв. 1, 2025
Due
to
the
shortage
of
freshwater
and
depletion
groundwater,
reuse
wastewater
for
crop
irrigation
has
become
essential,
although
many
pollutants,
such
as
antibiotics,
are
also
introduced
into
soil-groundwater
system.
In
order
identify
distribution
transport
mechanisms
organic
pollutants
in
"irrigation
wastewater-soil-crop"
system
under
long-term
soil
conditions
their
potential
ecological
health
risks,
samples
were
collected
from
five
sampling
sites
Wangyang
River
basin,
a
typical
sewage
area
North
China.
The
results
risk
assessment
showed
that
quotients
(RQ)
sulfamethoxazole
(SMZ),
naphthalene
(Nap),
hexachlorocyclohexane
(HCH),
dichlorodiphenyltrichloroethane
(DDTs)
was
greater
than
1,
indicating
accumulation
root
zone
at
high
risk.
non-carcinogenic
(HQ)
bis
(2-ethylhexyl)
phthalate
(DEHP)
largest,
reaching
0.41
0.16
adults
children,
respectively,
carcinogenic
(CR)
value
0.00061,
which
exceeded
limit
1
×
10
−6
,
DEHP
poses
human
health.
Язык: Английский