The
increasing
prevalence
of
organophosphate
esters
(OPEs)
in
remote
polar
ecosystems
has
raised
significant
concerns;
yet
the
bioaccumulation
and
trophic
transfer
dynamics
these
compounds
regions
remain
poorly
understood.
This
study
investigated
occurrence
distribution
OPEs
soil,
vegetation,
marine
sediment,
biota
from
Svalbard,
Arctic.
Σ10OPEs
ranged
1.12
to
236
ng/g
dry
weight
(dw)
1.96
255
dw
Arctic
terrestrial
benthic
matrices,
respectively.
Triethyl
phosphate
(TEP),
tris(1-chloro-2-propyl)
(TCIPP),
tris(2-chloroethyl)
(TCEP),
tri-(2-butoxyethyl)
(TBOEP)
were
dominant
congeners
across
all
samples.
exhibited
within
soil-vegetation
system
environment,
while
dilution
occurred
food
web.
Interestingly,
parabolic
correlations
observed
between
log
octanol-water
partition
coefficients
(log
KOW)
log-transformed
bioconcentration
factors
(BCFs)
as
well
KOW
magnification
(TMFs)
web,
suggesting
that
with
moderate
lipophilicity
exhibit
highest
potential
for
bioaccumulation.
presents
first
comprehensive
assessment
ecosystem,
providing
critical
insights
into
environmental
behaviors
regions.
Environmental Toxicology and Chemistry,
Journal Year:
2025,
Volume and Issue:
44(3), P. 643 - 652
Published: Jan. 6, 2025
Abstract
Organophosphate
esters
(OPEs)
have
emerged
as
pervasive
environmental
contaminants,
with
concentrations
often
exceeding
those
of
traditional
flame
retardants
and
plasticizers
by
orders
magnitude.
Here,
we
present
OPEs
in
the
atmospheric
gas
phase
collected
using
passive
air
samplers
deployed
coastal
regions
Quebec
British
Columbia
southern
Canada.
Four
OPEs,
i.e.,
tri-n-butyl
phosphate
(TBP),
tris(2-chloroethyl)
(TCEP),
tris(1-chloro-2-propyl)
(TCPP),
tris
(phenyl)
(TPhP)
were
reliably
ubiquitously
detected,
TCPP
showing
highest
level,
followed
TBP.
Concentration
levels
TCEP
are
correlated
each
other
population,
possibly
indicating
emission
from
consumer
products.
Spatial
patterns
TBP
TPhP
more
indicative
industrial
usage,
airports
being
a
major
source
for
The
positive
relationships
between
population
influenced
ambient
temperature,
whereby
size
populated
area
around
sampling
site
influencing
concentration
appears
to
be
decreasing
at
higher
temperatures.
Critical Reviews in Environmental Science and Technology,
Journal Year:
2023,
Volume and Issue:
54(8), P. 641 - 675
Published: Oct. 14, 2023
AbstractGiven
the
widespread
use
as
flame
retardants,
plasticizers,
and
organophosphate
esters
(OPEs)
received
increasing
scientific
interests
on
their
occurrence
ecotoxicological
research
progress.
This
review
comprehensively
conducted
bibliometric
analysis
surveyed
OPEs
in
aquatic
ecosystem
(water,
sediment,
organisms)
human-related
(drinking
water
sewage)
over
past
decade
to
unraveling
knowledge
gaps.
The
concentrations
water,
sediment
were
at
range
of
not
detected
(n.d.)
or
several
hundreds
ng/g
ng/L
exhibited
landuses-specific
characteristics.
electronic
waste
(e-waste)
processing
activities
sewage
discharge
identified
point
sources
environment.
Emission
source
intensity,
chemistry,
content
organic
carbon
important
for
partition
transfer
processes
well
hydrophobicity
dominating
absorption
matter.
Degradation,
especially
photodegradation
reductive
degradation,
has
application
potential
improving
removal
efficiencies
chlorinated-OPEs
(Cl-OPEs)
being
reluctant
degrade.
Generally,
most
have
negligible
ecological
health
risks,
whereas
those
with
moderate
threats
chronic
effects
should
gain
more
attention.
elucidates
status
pollution
highlights
need
transport
degradation
studies
traditional
emerging
metabolites
further
identify
ecosystem.Keywords:
Aquatic
ecosystemorganophosphorus
retardantsenvironmental
behaviorpotential
sourceecological
riskregulationHandling
Editors:
Eakalak
Khan
Lena
Q.
Ma
Disclosure
statementThere
no
competing
financial
interests.Additional
informationFundingThis
work
was
funded
by
National
Science
Technology
"Water
Pollution
Control
Treatment"
Major
Project
China
Ministry
People's
Republic
(No.
2017ZX07201002),
Three
Gorges
Corporation
(CTG
201903173),
Fundamental
Research
Funds
Central
Universities
(2022-4-ZD-06;
22120230414).
