Eco-Environment & Health,
Journal Year:
2024,
Volume and Issue:
3(4), P. 529 - 542
Published: July 3, 2024
As
an
important
group
of
widespread
organic
substances
in
aquatic
ecosystems,
dissolved
matter
(DOM)
plays
essential
role
carbon
recycling
and
transformation
processes.
The
photochemical
behavior
DOM
is
one
the
main
ways
it
participates
these
processes,
attracts
extensive
attention.
However,
due
to
a
variety
sources
water
conditions,
including
both
freshwater
seawater
environments,
properties
exhibit
great
differences.
Nowadays,
large
number
studies
have
focused
on
generation
process
reactive
species
(RS)
from
sunlit
DOM,
while
little
effort
has
been
made
so
far
provide
comprehensive
summary
especially
fresh
saline
ecosystems.
In
this
review,
we
analyzed
research
hotspot
photochemistry
over
last
30
years,
summarizing
photoreactive
natural
environments
containing
(both
seawater)
listing
factors
affecting
rate,
yield,
RS
photoproduction.
Compared
with
freshwater,
unique
characteristics
such
as
high
pH
value,
ionic
strength,
halide
ions,
which
affect
photogeneration
RS,
photoconversion
process,
well
reaction
pathways
various
environmental
substances.
general,
DOM-induced
surface
impacts
toxic
effects
pollutants
can
even
contribute
significantly
Earth's
cycle,
would
potential
implications
for
human
ecological
health.
Environmental Science & Technology,
Journal Year:
2024,
Volume and Issue:
58(2), P. 991 - 1009
Published: Jan. 3, 2024
Micro-
and
nanoplastics
(MNPs)
are
attracting
increasing
attention
due
to
their
persistence
potential
ecological
risks.
This
review
critically
summarizes
the
effects
of
photo-oxidation
on
physical,
chemical,
biological
behaviors
MNPs
in
aquatic
terrestrial
environments.
The
core
this
paper
explores
how
photo-oxidation-induced
surface
property
changes
affect
adsorption
toward
contaminants,
stability
mobility
water
porous
media,
as
well
transport
pollutants
such
organic
(OPs)
heavy
metals
(HMs).
It
then
reviews
photochemical
processes
with
coexisting
constituents,
highlighting
critical
factors
affecting
MNPs,
contribution
phototransformation
other
contaminants.
distinct
mechanism
aged
pointed
out,
terms
toxicity
organisms,
biofilm
formation,
planktonic
microbial
growth,
soil
sediment
community
function.
Furthermore,
research
gaps
perspectives
put
forward,
regarding
underlying
interaction
mechanisms
natural
constituents
under
conditions,
combined
fate
microbiological
effect
photoaged
especially
biotransformation
pollutants.
Water,
Journal Year:
2022,
Volume and Issue:
14(21), P. 3515 - 3515
Published: Nov. 2, 2022
Plastic
wastes
are
becoming
one
of
the
most
serious
environmental
pollutants
because
their
high
antidegradation
properties
and
damage
they
cause
to
human
health.
More
seriously,
plastics
can
become
smaller
in
size
form
microplastics
(MPs),
attributing
oxidation,
weathering,
fragmentation
processes.
The
influx
MPs
into
water
bodies
seriously
affects
quality
aquatic
environment.
Therefore,
it
is
necessary
summarize
aging
process
MPs.
In
this
review,
we
first
provided
an
overview
definition
source
Then
analyzed
potential
pathways
current
environment
elaborated
on
changes
physicochemical
during
(e.g.,
particle
size,
crystallinity,
thermodynamic
properties,
surface
functional
groups).
addition,
possible
synergistic
contamination
with
other
illustrated.
Finally,
mechanisms
generation
toxicity
persistent
free
radicals
(EPFRs)
that
may
be
generated
photoaging
were
described,
feasibility
using
photoaged
as
photosensitizers
catalyze
photoreactive
degradation
organic
proposed.
Overall,
review
provides
a
comprehensive
objective
evaluation
behavior
