Chemosphere,
Год журнала:
2024,
Номер
361, С. 142553 - 142553
Опубликована: Июнь 6, 2024
The
widespread
presence
of
microplastics
(MPs)
in
the
air
and
their
potential
impact
on
human
health
underscore
pressing
need
to
develop
robust
methods
for
quantifying
presence,
particularly
breathable
fraction
(<5
μm).
In
this
study,
Raman
micro-spectroscopy
(μRaman)
was
employed
assess
concentration
indoor
airborne
MPs
>1
μm
four
environments
(a
meeting
room,
a
workshop,
two
apartments)
under
different
levels
activity.
MP
spanned
between
58
684
per
cubic
meter
(MP
m
Chemosphere,
Год журнала:
2024,
Номер
352, С. 141410 - 141410
Опубликована: Фев. 10, 2024
We
report
atmospheric
fine
micro-
and
nanoplastics
concentrations
from
particulate
matter
(PM)
samples
of
two
size
fractions
(PM10,
nanoplastics,
PM1,
nanoplastics),
which
were
collected
at
the
remote
high
alpine
station
Sonnblick
Observatory,
Austria.
Active
sampling
was
performed
June
2021
until
April
2022.
Analysis
done
using
TD-PTR-MS
to
detect
6
different
plastic
types.
Polyethylene
terephthalate
(PET),
polyethylene
(PE)
polypropylene/polypropylene
carbonate
(PP/PPC)
found
be
dominating
species.
PET
detected
in
almost
all
samples,
while
other
types
occurred
more
episodically.
Furthermore,
polyvinyl
chloride
(PVC),
polystyrene
(PS)
tire
wear
particles
single
samples.
Considering
three
main
types,
average
plastics
35
21
ng
m−³
with
maximum
165
113
for
PM10
respectively.
Average
polymer
higher
summer/fall
period
than
winter/spring.
In
summer/fall,
by
a
factor
2
compared
both
classes
comparable
winter/spring
period.
This
suggests
that
colder
season
arriving
Eastern
Alpine
crests
are
mainly
present
as
nanoplastics.
The
contribution
organic
site
data
determined
an
urban
site.
significant
correlations
between
concentration
tracers
originating
anthropogenic
activities
such
elemental
carbon,
nitrate,
ammonium,
sulphate
well
carbon
arabitol.