Water,
Journal Year:
2023,
Volume and Issue:
15(20), P. 3694 - 3694
Published: Oct. 23, 2023
Copper
(Cu),
zinc
(Zn),
and
nickel
(Ni)
are
essential
micronutrients
for
aquatic
life,
but
they
produce
adverse
effects
on
organisms
when
environmental
concentrations
exceed
a
certain
threshold.
The
objective
of
this
study
was
to
analyze
the
taxon-specific
sensitivities
life
three
metals
assess
ecological
risks
at
exposure
levels
prevalent
in
Songhua
River,
China.
results
showed
that
these
varied
among
different
taxonomic
groups,
with
intra-taxon
being
lower
than
inter-taxa
sensitivities,
consistency
sensitivity
increased
from
phylum
order.
maximum
detected
Cu,
Zn,
Ni
River
were
52.7,
166.0,
65.3
μg/L,
respectively,
which
met
water
quality
standards
set
by
China
exceeded
chronic
criteria
established
USA.
A
probabilistic
risk
assessment
based
toxicity
data
revealed
posed
an
intermediate
high
animals,
products
36.4%
14.3%
Ni,
6.2%
respectively.
These
indicate
damage
heavy
cannot
be
ignored.
Journal of Toxicology and Environmental Health Part B,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1 - 29
Published: March 25, 2025
Effects
of
sulfoxaflor
(SFX)
on
aquatic
invertebrates
were
assessed
by
comparing
concentrations
predicted
to
occur
in
or
measured
surface
waters
thresholds
for
adverse
effects.
Due
the
specific
mode
toxic
action,
fishes
are
relatively
tolerant
effects
SFX.
Daphnia
magna
with
an
LC50
378
mg
SFX
L-1
(SD
=
19.13)
was
similarly
SFX,
while
LOEC
>110
L-1.
A
threshold
insects,
based
chironomid
midge,
C.
tentans,
had
LOAEL
and
NOAEL
values
0.0455
0.0618
L-1,
respectively.
The
acute-to-chronic
ratio
18.
Simulation
models
parameters
selected
a
range
applications
crops
environmental
(EECs)
from
2.2
7.7
µg
Based
these
EECs,
maximum
hazard
quotient
(HQ)
0.11,
which
is
less
than
US
EPA
level
concern
(LOC)
0.5,
would
normally
be
trigger
regulatory
action
higher-tier
assessments.
risks
posed
organisms
de
minimis.
Hazard
quotients
EEC
standard,
USEPA
farm
pond
estimated
use
Pesticides
Water
Calculator
(PWC
version
1.52)
scenarios
application
rates
cotton
insects
similar
those
other
insecticides
including
neonicotinoids
organophosphorus
compounds.
Water,
Journal Year:
2025,
Volume and Issue:
17(1), P. 118 - 118
Published: Jan. 4, 2025
The
environmental
persistence
of
antiviral
drugs
poses
serious
safety
hazards
to
aquatic
ecosystems
through
their
selective
pressure
on
microorganisms,
yet
the
understanding
drugs’
impact
microbial
community
structures
remains
limited.
In
this
study,
surface
water
samples
from
Beijing
were
analyzed
for
drug
concentrations
using
UPLC-MS/MS,
and
abundance
was
assessed
via
16S
amplicon
sequencing.
Employing
these
methods,
we
investigated
mechanisms
which
may
exert
ecological
risks
communities.
Our
findings
reveal
that
significantly
increase
Enhydrobacter
Nitrospira
microbiota.
concentration
DNA
polymerase
inhibitor
is
positively
correlated
with
Peredibacter,
Enterococcus,
Aeromonas,
Aquabacterium,
Alloprevotella,
Ruminococcus.
Antiviral
also
found
reduce
digestive
system-related
functions
in
organismal
systems,
while
promoting
processes
associated
carbohydrate
metabolism
influencing
metabolic
activity
bacterial
Co-occurrence
network
analysis
showed
disrupt
original
key
communities,
Bdellovibrio
Candidatus
omnitrophus
emerging
as
new
indicating
rare
communities
can
play
an
important
role
maintaining
system
stability.
Total
phosphorus
(TP)
dissolved
oxygen
(DO)
identified
factors
shifts.
underscore
potential
contribution
wide-scale
usage
bacteria,
yielding
novel
perspectives
sustainable
management
urban
riverine
environments.
Ecotoxicology and Environmental Safety,
Journal Year:
2024,
Volume and Issue:
279, P. 116517 - 116517
Published: May 27, 2024
With
increasing
urbanization
and
rapid
industrialization,
more
environmental
problems
have
arisen.
Phthalates
(PAEs)
are
the
foremost
most
widespread
plasticizers
readily
emitted
from
these
manufactured
products
into
environment.
PAEs
act
as
endocrine-disrupting
chemicals
(EDCs)
can
serious
impacts
on
aquatic
organisms
well
human
health.
In
this
study,
water
quality
criteria
(WQC)
of
five
(dimethyl
phthalate
(DMP),
diethyl
(DEP),
dibutyl
(DBP),
butyl
benzyl
(BBP)
di(2-ethylhexyl)
(DEHP))
for
freshwater
were
developed
using
a
species
sensitivity
distribution
(SSD)
toxicity
percentage
ranking
(TPR)
approach.
The
results
showed
that
long-term
(LWQC)
SSD
method
could
be
13.7,
11.1,
2.8,
7.8,
0.53
μg/L,
respectively.
Criteria
continuous
concentrations
(CCC)
derived
TPR
determined
to
28.4,
13.1,
1.3,
2.5,
1.6
commonly
measured
in
China
surface
waters
at
between
ng/L
μg/L.
DBP,
DEHP,
di-n-octyl
(DnOP)
frequently
detected
PAEs,
with
occurrence
rates
ranging
67%
100%.
ecological
risk
assessment
decreasing
order
national
level,
DMP,
DEP,
DnOP.
study
will
great
benefit
other
countries
revising
standards
conservation
species.
Journal of Hazardous Materials,
Journal Year:
2024,
Volume and Issue:
480, P. 135947 - 135947
Published: Sept. 26, 2024
The
eco-geno-toxicological
impacts
of
the
most
widely
used
antiviral
drugs
against
SARS-CoV2
-
ribavirin,
ritonavir,
nirmatrelvir
and
tenofovir
were
investigated
in
freshwater
organisms.
Ribavirin
exhibited
highest
acute
toxicity
rotifer
Brachionus
calyciflorus
at
concentrations
a
few
mg/L
while
ritonavir
showed
similar
effects
tens
mg/L;
ribavirin
was
also
observed
crustacean
Ceriodaphnia
dubia
concentrations.
In
contrast,
Thamnocephalus
platyurus
lowest
sensitivity
to
tested
with
no
sublethal
effects.
Chronic
tests
revelead
that
these
antivirals
induced
consumers
environmental
concern
(ng-µg/L).
alga
Raphidocelis
subcapitata,
B.
C.
dubia.
DNA
damage
oxidative
stress
0.001
µg/L
0.1
when
exposed
respectively,
1
tenofovir.
Toxic
genotoxic
risks
assessed
risk
quotients
for
exceeding
threshold
1,
indicating
significant
concern.
