Environments,
Год журнала:
2024,
Номер
11(11), С. 238 - 238
Опубликована: Окт. 29, 2024
In
this
study,
a
systematic
review
of
the
scientific
literature
was
carried
out
to
summarize
emerging
evidence
on
microplastic
pollution
in
natural
caves.
After
screening
655
papers
topic
from
combined
search
Web
Knowledge
and
Scopus
databases,
we
found
only
14
studies
reporting
quantitative
data
microplastics
total
27
Most
assessments
focused
water
sediment,
with
very
limited
investigations
concerning
cave
biota.
Overall,
most
common
types
particles
caves
were
small
(<1
mm)
fibers
(~70–90%
items),
transparent
or
light-colored,
mostly
made
polyethylene
terephthalate.
Anthropogenic
cellulosic
materials,
however,
represented
non-negligible
portion
(i.e.,
~20–30%).
Microplastic
concentrations
varied
between
0.017
911
items/L
for
7.9
4777
items/kg
thus
falling
within
levels
other
terrestrial,
freshwater,
marine
environments.
Levels
appear
largely
variable
among
caves,
stressing
need
extend
geographic
environmental
ranges
assessments,
which
are
currently
concentrated
Italian
land,
few
case
regions
world
Despite
their
putative
isolation,
have
high
vulnerability
contamination,
requiring
much
more
research
effort
understand
potential
risk
that
plastics
pose
these
fragile
ecosystems.
The Science of The Total Environment,
Год журнала:
2024,
Номер
946, С. 174259 - 174259
Опубликована: Июнь 25, 2024
Investigating
microplastics
(MPs)
in
groundwater
suffers
from
problems
already
faced
by
surface
water
research,
such
as
the
absence
of
common
protocols
for
sampling
and
analysis.
While
use
plastic
instruments
during
collection,
processing,
analysis
samples
is
usually
avoided
order
to
minimize
unintentional
contamination,
research
encompassing
MPs
faces
unique
challenges.
Groundwater
typically
relies
on
pre-existing
monitoring
wells
(MWs)
(WWs)
that
are
often
constructed
with
polyvinyl
chloride
(PVC)
casings
or
pipes
due
their
favorable
price-performance
ratio.
Despite
convenience,
however,
suitability
PVC
MP
questionable.
Unfortunately,
specifics
these
not
detailed
published
studies.
Current
literature
does
indicate
significant
pollution
risks
casings,
suggesting
might
still
be
viable
Our
preliminary
existing
indicates
if
exceeds
6
%
total
concentration,
it
likely
made
a
source
pollution.
Above
this
threshold,
additional
investigations
MWs
WWs
suggested.