Global Change Biology,
Journal Year:
2022,
Volume and Issue:
29(1), P. 21 - 40
Published: Sept. 22, 2022
Abstract
The
increasing
production,
use
and
emission
of
synthetic
chemicals
into
the
environment
represents
a
major
driver
global
change.
large
number
chemicals,
limited
knowledge
on
exposure
patterns
effects
in
organisms
their
interaction
with
other
change
drivers
hamper
prediction
ecosystems.
However,
recent
advances
biomolecular
computational
methods
are
promising
to
improve
our
capacity
for
prediction.
We
delineate
three
idealised
perspectives
chemical
effects:
suborganismal,
organismal
ecological
perspective,
which
currently
largely
separated.
Each
outlined
includes
essential
complementary
theories
tools
but
captures
only
part
phenomenon
effects.
Links
between
may
foster
predictive
modelling
ecosystems
extrapolation
species.
A
challenge
linkage
is
lack
data
sets
simultaneously
covering
different
levels
biological
organisation
(here
referred
as
levels)
well
varying
temporal
spatial
scales.
Synthesising
perspectives,
some
central
aspects
associated
types
seem
particularly
necessary
First,
suborganism‐
organism‐level
responses
need
be
recorded
tested
relationships
groups
organism
traits.
Second,
metrics
that
measurable
at
many
levels,
such
energy,
scrutinised
potential
integrate
across
levels.
Third,
experimental
simultaneous
response
over
multiple
spatiotemporal
scales
required.
These
could
collected
nested
interconnected
micro‐
mesocosm
experiments.
Lastly,
prioritisation
processes
involved
framework
needs
find
balance
simplification
capturing
complexity
system.
For
example,
cases,
eco‐evolutionary
dynamics
interactions
stronger
consideration.
Prediction
move
from
static
real‐world
view.
Environmental Toxicology and Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 20, 2025
Per-
and
polyfluoroalkyl
substances
(PFAS)
are
a
large
class
of
chemicals
concern
for
both
human
environmental
health
because
their
ubiquitous
presence
in
the
environment,
persistence,
potential
toxicological
effects.
Despite
this,
ecological
hazard
data
limited
to
small
number
PFAS
even
though
there
over
4000
identified
PFAS.
Traditional
toxicity
testing
will
likely
be
inadequate
generate
necessary
information
risk
assessment.
Therefore,
present
study
investigated
utility
using
transcriptomic
points
departure
(tPODs)
informing
algal
toxicity.
Raphidocelis
subcapitata,
freshwater
green
species,
were
exposed
24
hours
96
well
microplates
multiple
concentrations
22
different
Following
exposure,
RNA
was
extracted,
transcriptome
evaluated
by
sequencing
followed
concentration
response
modeling
determine
tPOD
each
tPODs,
based
upon
measured
concentrations,
ranged
from
0.9
µg/L
perfluorotridecanoic
acid
1
mg/L
perfluorononanoic
acid.
These
values
derived
R.
subcapitata
exposures
compared
published
benchmarks
other
taxa
(larval
fathead
minnow
Daphnia
magna)
vitro
data.
While
generally
more
sensitive
tested
than
previously
assays,
tPODs
were,
on
average,
three
orders
magnitude
greater
maximum
detected
Great
Lakes
tributaries.
This
high
throughput
transcriptomics
assay
with
algae
is
promising
new
approach
method
an
ecologically
relevant,
tiered
evaluation
strategy.
Assessment
in
a
hydrologically-vulnerable,
Mississippi
River
community
revealed
cumulative
risks
from
co-occurring
inorganic/organic
contaminants,
including
PFAS,
alluvial-aquifer-sourced
tapwater
but
not
deeper,
sandstone-aquifer
tapwater.
Global Change Biology,
Journal Year:
2022,
Volume and Issue:
29(1), P. 21 - 40
Published: Sept. 22, 2022
Abstract
The
increasing
production,
use
and
emission
of
synthetic
chemicals
into
the
environment
represents
a
major
driver
global
change.
large
number
chemicals,
limited
knowledge
on
exposure
patterns
effects
in
organisms
their
interaction
with
other
change
drivers
hamper
prediction
ecosystems.
However,
recent
advances
biomolecular
computational
methods
are
promising
to
improve
our
capacity
for
prediction.
We
delineate
three
idealised
perspectives
chemical
effects:
suborganismal,
organismal
ecological
perspective,
which
currently
largely
separated.
Each
outlined
includes
essential
complementary
theories
tools
but
captures
only
part
phenomenon
effects.
Links
between
may
foster
predictive
modelling
ecosystems
extrapolation
species.
A
challenge
linkage
is
lack
data
sets
simultaneously
covering
different
levels
biological
organisation
(here
referred
as
levels)
well
varying
temporal
spatial
scales.
Synthesising
perspectives,
some
central
aspects
associated
types
seem
particularly
necessary
First,
suborganism‐
organism‐level
responses
need
be
recorded
tested
relationships
groups
organism
traits.
Second,
metrics
that
measurable
at
many
levels,
such
energy,
scrutinised
potential
integrate
across
levels.
Third,
experimental
simultaneous
response
over
multiple
spatiotemporal
scales
required.
These
could
collected
nested
interconnected
micro‐
mesocosm
experiments.
Lastly,
prioritisation
processes
involved
framework
needs
find
balance
simplification
capturing
complexity
system.
For
example,
cases,
eco‐evolutionary
dynamics
interactions
stronger
consideration.
Prediction
move
from
static
real‐world
view.